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SERVICE STATION MANUAL xxx(IT)-xxx(EN)-xxx(FR)-xxx(DE)-xxx(ES)-xxx(PT)xxx(NL)-xxx(EL)

MP3 125 ie

SERVICE STATION MANUAL

MP3 125 ie

The descriptions and images in this publication are given for illustrative purposes only and are not binding. While the basic characteristics as described and illustrated in this booklet remain unchanged, Piaggio & C. S.p.A. reserves the right, at any time and without being required to update this publication beforehand, to make any changes to components, parts or accessories, which it considers necessary to improve the product or which are required for manufacturing or construction reasons. Not all versions/models shown in this publication are available in all countries. The availability of each model should be checked at the official PIAGGIO sales network. © Copyright 2011 - Piaggio & C. S.p.A. All rights reserved. Reproduction of this publication in whole or in part is prohibited. Piaggio & C. S.p.A. Viale Rinaldo Piaggio, 25 - 56025 PONTEDERA (PI), Italy www.piaggio.com

SERVICE STATION MANUAL MP3 125 ie This service station manual has been drawn up by Piaggio & C. SpA to be used by the workshops of Piaggio-Gilera dealers. It is assumed that the user of this manual for maintaining and repairing Piaggio vehicles has a basic knowledge of mechanical principles and vehicle repair technique procedures. Any significant change to vehicle characteristics or to specific repair operations will be communicated by updates to this manual. Nevertheless, no mounting work can be satisfactory if the necessary equipment and tools are unavailable. It is therefore advisable to read the sections of this manual concerning special tools, along with the special tool catalogue.

N.B. Provides key information to make the procedure easier to understand and carry out.

CAUTION Refers to specific procedures to carry out for preventing damages to the vehicle.

WARNING Refers to specific procedures to carry out to prevent injuries to the repairer.

Personal safety Failure to completely observe these instructions will result in serious risk of personal injury.

Safeguarding the environment Sections marked with this symbol indicate the correct use of the vehicle to prevent damaging the environment.

Vehicle intactness The incomplete or non-observance of these regulations leads to the risk of serious damage to the vehicle and sometimes even the invalidity of the guarantee.

INDEX OF TOPICS

CHARACTERISTICS

CHAR

TOOLING

TOOL

MAINTENANCE

MAIN

TROUBLESHOOTING

TROUBL

ELECTRICAL SYSTEM

ELE SYS

ENGINE FROM VEHICLE

ENG VE

ENGINE

ENG

INJECTION

INJEC

SUSPENSIONS

SUSP

BRAKING SYSTEM

BRAK SYS

COOLING SYSTEM

COOL SYS

CHASSIS PRE-DELIVERY TIME

CHAS PRE DE TIME

INDEX OF TOPICS

CHARACTERISTICS

CHAR

MP3 125 ie

Characteristics

This section describes the general specifications of the vehicle.

Rules This section describes general safety rules for any maintenance operations performed on the vehicle.

Safety rules - If work can only be done on the vehicle with the engine running, make sure that the premises are well ventilated, using special extractors if necessary; never let the engine run in an enclosed area. Exhaust fumes are toxic. - The battery electrolyte contains sulphuric acid. Protect your eyes, clothes and skin. Sulphuric acid is highly corrosive; in the event of contact with your eyes or skin, rinse thoroughly with abundant water and seek immediate medical attention. - The battery produces hydrogen, a gas that can be highly explosive. Do not smoke and avoid sparks or flames near the battery, especially when charging it. - Fuel is highly flammable and it can be explosive given some conditions. Do not smoke in the working area, and avoid naked flames or sparks. - Clean the brake pads in a well-ventilated area, directing the jet of compressed air in such a way that you do not breathe in the dust produced by the wear of the friction material. Even though the latter contains no asbestos, inhaling dust is harmful.

Maintenance rules - Use original PIAGGIO spare parts and lubricants recommended by the Manufacturer. Non-original or non-conforming spares may damage the vehicle. - Use only the appropriate tools designed for this vehicle. - Always use new gaskets, sealing rings and split pins upon refitting. - After removal, clean the components using non-flammable or low flash-point solvents. Lubricate all the work surfaces, except tapered couplings, before refitting these parts. - After refitting, make sure that all the components have been installed correctly and work properly. - For removal, overhaul and refit operations use only tools with metric measures. Metric bolts, nuts and screws are not interchangeable with coupling members with English measurement. Using unsuitable coupling members and tools may damage the vehicle. - When carrying out maintenance operations on the vehicle that involve the electrical system, make sure the electrical connections have been made properly, particularly the ground and battery connections.

CHAR - 7

MP3 125 ie

Characteristics

Vehicle identification Chassis prefix: ZAPM63100

Engine prefix: M631M

Dimensions and mass

WEIGHTS AND DIMENSIONS Specification Kerb weight

CHAR - 8

Desc./Quantity 210 ± 8 kg

MP3 125 ie

Characteristics

Specification Maximum weight allowed

Desc./Quantity 410 kg

Engine ENGINE Specification Type Engine capacity Bore x stroke Compression ratio Minimo motore Timing system Valve clearance Max. power MAX. torque Transmission

Final reduction gear Lubrication Cooling Starter Fuel system Fuel Exhaust silencer Emissions compliance

Desc./Quantity Single-cylinder, 4-stroke 124 cm³ 57 x 48.6 mm 11.5 ± 13.0: 1 1.650 ± 100 giri/min 4 valves, single overhead camshaft, chain-driven. Intake: 0.10 mm Exhaust: 0.15 mm 11.0 kW at 9,500 rpm 12.0 Nm at 8000 rpm Automatic expandable pulley variator with torque server, Vbelt, self-ventilating dry automatic centrifugal clutch and transmission housing with forced-circulation air cooling. Gear reduction unit in oil bath. Engine lubrication with lobe pump (inside crankcase), chaindriven, with double filter: mesh and paper. Forced-circulation coolant with electric pump commanded by the control unit. starter, with freewheel in oil bath ELDOR KUBO01 electronic injection with 32 mm diam. throttle body and electric fuel pump. Unleaded petrol (95 RON) Absorption-type exhaust silencer with a 3-way catalytic converter and lambda probe. EURO 3

Transmission TRANSMISSION Specification Transmission

Desc./Quantity Automatic expandable pulley CVT with torque server, V-belt, automatic clutch, gear reduction unit and transmission compartment with forced air circulation cooling

Capacities CAPACITY Specification Engine oil Transmission oil Cooling system fluid Fuel tank (reserve)

Desc./Quantity Capacity: 1.3 l (dry); 1.2 l (when changing oil and filter) 250 cm³ ~2l 12.0 ± 0.5 l (-)

Electrical system ELECTRICAL COMPONENTS Specification Ignition Starter

Desc./Quantity Electronic inductive discharge ignition, high efficiency, with separate HV coil. starter, with freewheel in oil bath

CHAR - 9

MP3 125 ie

Characteristics

Specification Spark plug Battery Generator

Desc./Quantity NGK CR8EB 12 V-12Ah SEALED BATTERY alternating current

Frame and suspensions CHASSIS AND SUSPENSION Specification Chassis Rear suspension

Desc./Quantity Tubular and steel sheets. Single arm with two double-acting hydraulic shock absorbers and preloading adjustment in 4 positions. The roll system is composed of an articulated parallelogram suspension with die-cast aluminium control arms and two side headstocks plus shock absorbers with hydraulic locking system.

Front suspension

Brakes BRAKES Specification Front brake

Desc./Quantity Ø 240-mm double disc brake with hydraulic control operated by the handlebar right-hand lever. Ø 240-mm disc brake with hydraulic control operated by the handlebar left-side lever.

Rear brake

Wheels and tyres WHEELS AND TYRES Specification Front wheel rim Rear wheel rim Front tyre Rear tyre

Desc./Quantity 12" x 3.00" 14" x 3.75" 120/70-12", without inner tube Without inner tube: 140/60-14"

TYRE INFLATION PRESSURE Specification Front tyre pressure Rear tyre pressure

Desc./Quantity 1.8 bar 2.8 bar

N.B.

CHECK AND ADJUST TYRE PRESSURE WITH TYRES AT AMBIENT TEMPERATURE. REGULATE PRESSURE ACCORDING TO THE WEIGHT OF BOTH RIDER AND ACCESSORIES

Tightening Torques STEERING Name Steering lower ring nut (central headstock) Steering upper ring nut (central headstock) Handlebar fixing screw Fixing screws for the handlebar control unit U-bolts

CHAR - 10

Torque in Nm 10 to 12 22.5 to 25 50 ÷ 55 7 to 10

MP3 125 ie

Characteristics

CHASSIS Name Engine arm bolt - frame arm Swinging arm buffer nut Engine-swinging arm pin Frame-swinging arm bolt Centre stand bolt

Torque in Nm 33 to 41 64 - 72 55 - 61 55 - 61 31 - 39

FRONT SUSPENSION Name Shock absorber lower clamping Shock absorber upper clamp Front wheel fixing screws Steering arm bolt nut Tilt gripper fixing screws Front wheel axle Arm coupling screws Screws fixing arms to side headstocks Screws fixing arms to central headstock Screws fixing the half-arm coupling flange Screws fixing roll lock disc section Side headstock upper ring nut Side headstock lower ring nut Screw fixing sliding stem to shock absorber Clamp for sliding stem locking device Fixing nuts for constant-velocity universal joints Potentiometer to anti-tilting device clamp Electric motor to anti-tilting device clamp Clamp fixing pump bolt to anti-tilting device Pump to anti-tilting device clamp Pressure switch to distribution frame Sensor to tilt gripper clamp Pipe terminals to fifth wheel check spring Joint to anti-tilting device pump Lower fitting for shock absorber sliding locking clamp pipes Upper fitting for shock absorber sliding locking clamp pipes

Torque in Nm 19 - 26 19 - 29 19 ÷ 24 20 to 25 20 to 25 74 - 88 45 to 50 45 to 50 45 to 50 20 to 25 20 to 25 20 - 24 12 ÷ 15 45 to 50 6.5 - 10.5 18 - 20 8 to 10 11 to 13 11 to 13 11 to 13 18 - 20 2.5 - 2.9 7 - 11 20 to 25 20 to 25 20 to 25

REAR SUSPENSION Name Shock absorber upper clamp Shock absorber lower clamping Shock absorber-crankcase attachment bracket Rear wheel axle Silencer arm clamping screws

Torque in Nm 33 to 41 33 to 41 20 to 25 104 to 126 27 - 30

FRONT BRAKE Name Oil bleed screw Brake disc screws Brake fluid pump-hose fitting Brake fluid pipe-calliper fitting Screw tightening calliper to support Calliper upper pipe fitting

Torque in Nm 8 - 12 8 to 10 16 - 20 20 to 25 20 to 25 20 to 25

REAR BRAKE Name Brake disc screws Rear brake calliper-pipe fitting Rigid / flexible pipe fitting Rear brake pump-pipe fitting Rear brake retainer screw

Torque in Nm 8 to 10 20 to 25 13 - 18 16 - 20 20 to 25

CHAR - 11

MP3 125 ie

Characteristics

SILENCER Name Silencer heat guard fixing screw Screw for fixing silencer to supporting arm Lambda probe tightening on exhaust manifold Exhaust manifold-silencer joint tightening Manifold - silencer diaphragm tightening clamp

Torque in Nm 4 to 5 20 to 25 40 to 50 12 to 13 16 to 18

LUBRICATION Name Oil engine drainage plug/ engine Oil filter on crankcase fitting Engine oil drainage plug/ mesh filter Oil filter Oil pump cover screws Screws fixing oil pump to the crankcase Oil pump command sprocket screw Oil pump cover plate screws Oil sump screws Minimum oil pressure sensor

Torque in Nm 12 - 16 27 to 33 24 to 30 4 to 6 7-9 5 to 6 10 to 14 4 to 6 10 to 14 12 to 14

CYLINDER HEAD Name Spark plug Head cover screws Nuts fixing head to cylinder Head fixing side screws Starter ground screw Tappet adjustment check nut Intake manifold screws Timing chain tensioner slider screw Starter counterweight support screw Timing chain tensioner support screw Timing chain tensioner central screw Camshaft retention plate screw

Torque in Nm 12 to 14 6-7 7±1 + 10±1 + 270° 11 - 12 7 to 8.5 6-8 11 to 13 10 to 14 11 to 15 11 to 13 5 to 6 4 to 6

TRANSMISSION Name Belt support roller screw Clutch unit nut on driven pulley Drive pulley nut Transmission cover screws Driven pulley shaft nut Rear hub cap screws

Torque in Nm 11 to 13 45 to 50 75 - 83 11 to 13 54 ÷ 60 24 to 27

FLYWHEEL Name Flywheel cover screw Stator assembly screws Flywheel nut Pick-up fixing screws Screw fixing freewheel to flywheel

Torque in Nm 11 to 13 3 - 4 (Apply LOCTITE medium type 242 threadlock) 94 - 102 3 to 4 13 - 15

CRANKCASE AND CRANKSHAFT Name Internal engine crankcase bulkhead (transmission-side half shaft) screws Engine-crankcase coupling screws Starter screws Crankcase timing cover screws

CHAR - 12

Torque in Nm 4 to 6 11 to 13 11 to 13 3.5 - 4.5 (Apply LOCTITE medium type 242 threadlock)

MP3 125 ie

Characteristics

COOLING Name Water pump rotor cover Thermostat cover screws Bleed screw

Torque in Nm 3 to 4 3 to 4 3

Overhaul data Assembly clearances Cylinder - piston assy. - Calculate the coupling clearance between pin and connecting rod small end.

Characteristic Standard diameter: Ø 14.996 - 15.0 mm Standard clearance: 0.015 ÷ 0.029 mm

- Measure the diameter of the bearings on the piston.

Characteristic Standard diameter: 15 +0.006 + 0.001mm

- Calculate the piston pin coupling clearance. N.B.

THE PIN HOUSINGS HAVE 2 LUBRICATION CHANNELS. FOR THIS REASON, MEASUREMENT MUST BE MADE ACCORDING TO THE PISTON AXIS.

Characteristic Standard clearance: 0.001 - 0.010 mm

CHAR - 13

Characteristics

MP3 125 ie

- Check that coating is free from flakes. - Check that the head matching surface exhibits no deformations or wear.

Characteristic Maximum allowable run-out: 0.05 mm

- Pistons and cylinders are classified into categories based on their diameter. The coupling is carried out in pairs (A-A, B-B, C-C, D-D).

*Fit rings «2» and «3» with the word «TOP» facing upwards. ** Position the port of the rings as shown here. *** Value «A» of the sealing ring inside the cylinder (fitting clearance). Check the size of the sealing ring opening: Compression ring 0.15 - 0.30 mm. Max. value 0.5 mm Oil scraper ring 0.10 - 0.30 mm. Max. value 0.65 mm Oil scraper ring 0.15 - 0.35 mm. Max. value 0.65 mm N.B.

FITTING CLEARANCE VALUES ARE THE SAME FOR BOTH THE STANDARD SEALING RINGS AND THE OVERSIZES.

CHAR - 14

MP3 125 ie

Characteristics

ENGINE COUPLING CATEGORIES Name Cylinder Cylinder Piston Piston Cylinder 1st Oversize Cylinder 1st Oversize Piston 1st Oversize Piston 1st Oversize Cylinder 2nd Oversize Cylinder 2nd Oversize Piston 2nd Oversize Piston 2nd Oversize Cylinder 3rd Oversize Cylinder 3rd Oversize Piston 3rd Oversize Piston 3rd Oversize

Initials A B C D A1 B1 C1 D1 A2 B2 C2 D2 A3 B3 C3 D3

Cylinder 56.997 to 57.004 57.004 to 57.011 57.011 to 57.018 57.018 to 57.025 57.197 to 57.204 57.204 to 57.211 57.211 to 57.218 57.218 to 57.225 57.397 to 57.404 57.404 to 57.411 57.411 to 57.418 57.418 to 57.425 57.597 to 57.604 57.604 to 57.611 57.611 to 57.618 57.618 to 57.625

Piston 56.945 - 56.952 56.952 - 56.959 56.959 - 56.966 56.966 - 56.973 57.145 - 57.152 57.152 - 57.159 57.159 - 57.166 57.166 - 57.173 57.345 - 57.352 57.352 - 57.359 57.359 - 57.366 57.366 - 57.373 57.545 - 57.552 57.552 - 57.559 57.559 - 57.566 57.566 - 57.573

Play on fitting 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059 0.045 - 0.059

N.B.

THE PISTON MUST BE INSTALLED WITH THE ARROW FACING TOWARDS THE EXHAUST SIDE, THE PISTON RINGS MUST BE INSTALLED WITH THE WORD «TOP» OR THE STAMPED MARK FACING UPWARDS.

CHAR - 15

MP3 125 ie

Characteristics

Crankcase - crankshaft - connecting rod - Measure the diameter of bushings «A» in the three directions shown in the figure. - Measure the diameter of the crankshaft bearings «B». - Check that the diametral clearance «A-B» is between the pre-set interval.

Characteristic Diameter clearance 0.023 - 0.041 mm

If value «A-B» is above the limit, check that value «B» is within the admissible values of the categories.

CRANKSHAFT Specification Category 1 Category 2

Desc./Quantity 28.998 to 29.004 29.004 to 29.010

If the crankshaft is within the set limits, replace the crankshaft half-bearings mounting the crankcase so as to suit the specified couplings. The crankcase halves can be mounted with four types of crankshaft half-bearings identified by letters- B (blue), C (yellow), E (green).

CRANKCASE Specification Category 1 Category 2

Desc./Quantity 32.959 - 35.965 32.953 to 32.959

CRANKCASE - CRANKSHAFT COUPLING / CRANKSHAFT HALF-BEARINGS Specification Crankshaft category 1 - Crankcase category 1 Crankshaft category 2 - Crankcase category 1 Crankshaft category 1 - Crankcase category 2 Crankshaft category 2 - Crankcase category 2

CHAR - 16

Desc./Quantity E+E C+C C+C B+B

MP3 125 ie

Characteristics

Characteristic Axial crankshaft/crankcase clearance: 0.5 - 0.40 mm

CRANKSHAFT/ CRANKCASE AXIAL CLEARANCE Name Transmissionside halfshaft Flywheel-side halfshaft Connecting rod Spacer tool

Description

Dimensions 16.6 +0-0.05

Initials A

Quantity D = 0.20 ÷ 0.50

16.6 +0-0.05 18 -0.10 -0.15 51.4 +0.05

B C E

D = 0.20 ÷ 0.50 D = 0.20 ÷ 0.50 D = 0.20 ÷ 0.50

CHAR - 17

Characteristics

MP3 125 ie

THE CRANKSHAFT is available in two CATEGORIES:

Characteristic Crankshaft category: CAT. 1 - CAT. 2

CRANKSHAFT CATEGORY IDENTIFICATION: The identification is indicated on the counterweight shoulder «*1 - *2», if carried out with micropinholing. Otherwise, «1 - 2» if done manually with an electric pen. The spare part identification is located on the package with a drawing number plus FC1/FC2 or (001/002). If a crankshaft comprising two half-shafts of different categories needs to be replaced, also replace both crankcase halves, combining the two components (Shaft and Crankcase) featuring the same category.

Cylinder Head Before performing head service operations, thoroughly clean all coupling surfaces. Note the position of the springs and the valves so as not to change the original position during refitting - Using a trued bar and a feeler gauge check that the cylinder head surface is not worn or distorted.

Characteristic Maximum allowable run-out 0.09 mm

- In case of faults, replace the head. - Check the sealing surfaces for the intake and exhaust manifold. - Check that the camshaft and the rocking lever pin capacities exhibit no wear. - Check that the head cover surface is not worn. - Check that the coolant seal plug exhibits no oxidation.

CHAR - 18

MP3 125 ie

Characteristics

- Insert the valves into the cylinder head. - Alternatively check the intake and exhaust valves. - The test is carried out by filling the manifold with petrol and checking that the head does not ooze through the valves when these are just pressed with the fingers.

Measure the camshaft bearing seats and rocking lever support pins with a bore meter

HEAD BEARINGS Specification Bearing "A" Bearing "B" Bearing "C"

Desc./Quantity 37 +0.025 20 +0.021 12 +0.018

- Measure the unloaded spring length.

Characteristic Standard length 40.5 mm Allowable limit after use: 39.7 mm

- Clean the valve seats of any carbon residues. - Using the Prussian blue, check the width of the impression on the valve seat "V".

Characteristic Admissible limit: 1.6 mm

- If the width of the impression on the valve seat exceeds the specified limits, replace the cylinder head. CHAR - 19

MP3 125 ie

Characteristics

- In case of excessive wear or damage, replace the head.

STANDARD VALVE LENGTH Specification Intake Exhaust

Desc./Quantity 84.5 mm 94.5 mm

- Measure the diameter of the valve stems in the three positions indicated in the diagram.

STANDARD DIAMETER Specification Intake: Exhaust:

Desc./Quantity 4.987 - 4.972 mm 4.975 - 4.960 mm

MINIMUM ADMISSIBLE DIAMETER Specification Intake: Exhaust:

- Calculate the clearance between the valve and the valve guide.

- Check the deviation of the valve stem by resting it on a «V» shaped abutment and measuring the extent of the deformation with a dial gauge.

Characteristic Limit values admitted: 0.1 mm

CHAR - 20

Desc./Quantity 4.96 mm 4.945 mm

MP3 125 ie

Characteristics

- Check the concentricity of the valve head by arranging a dial gauge at right angle relative to the valve head and rotate it on a "V" shaped abutment.

Characteristic Admissible limit: 0.03 mm

Measure the valve guide.

Characteristic Valve guide: 5 +0.012 mm

- After measuring the valve guide diameter and the valve stem diameter, check clearance between guide and stem.

OUTLET Specification Standard clearance: Admissible limit:

Desc./Quantity 0.025 to 0.052 mm 0.09 mm

INTAKE Specification Standard clearance: Admissible limit:

Desc./Quantity 0.013 - 0.04 mm 0.08 mm

- Check that there are no signs of wear on the faying surface with the articulated set screw terminal.

CHAR - 21

MP3 125 ie

Characteristics

- If no anomalies are found during the above checks, you can use the same valves. To obtain better sealing performance, grind the valve seats. Grind the valves gently with a fine-grained lapping compound. During the grinding, keep the cylinder head with the valve axes in a horizontal position. This will prevent the lapping compound residues from penetrating between the valve stem and the guide (see figure). CAUTION

TO AVOID SCORING THE FAYING SURFACE, DO NOT KEEP ROTATING THE VALVE WHEN NO LAPPING COMPOUND IS LEFT. CAREFULLY WASH THE CYLINDER HEAD AND THE VALVES WITH A SUITABLE PRODUCT FOR THE TYPE OF LAPPING COMPOUND BEING USED. CAUTION

DO NOT REVERSE THE FITTING POSITIONS OF THE VALVES (RIGHT - LEFT). - Check that the camshaft bearings exhibit no scores or abnormal wear. - Using a micrometer, measure the camshaft bearings.

STANDARD DIAMETER Specification Bearing A Ø: Bearing B diameter:

Desc./Quantity 37 - 0.025 -0.050 mm 19 - 0.020 -0.041 mm

MINIMUM ADMISSIBLE DIAMETER Specification Bearing A Ø: Bearing B diameter:

CHAR - 22

Desc./Quantity 36.940 mm 19.950 mm

MP3 125 ie

Characteristics

-Using a gauge, measure the cam height.

STANDARD HEIGHT Specification intake Exhaust

Desc./Quantity 17.382 mm 16.563 mm

ADMISSIBLE LIMITS Specification intake Exhaust standard axial clearance maximum admissible axial clearance

Desc./Quantity 17.130 mm 16.310 mm 0.11 - 0.41 mm 0.42 mm

- Check that the rocking lever pins exhibit no scores or wear.

Characteristic Standard diameter Diameter 11.977 - 11.985 mm - Measure the inside diameter of each rocker.

Characteristic Standard diameter Ø 12 +0.011 mm

CHAR - 23

Characteristics

MP3 125 ie

- Check that the cam contact sliding block and the articulated register cap is free from wear. - In case of wear, replace the component.

Slot packing system Characteristic Compression ratio Cr: 11.50 - 13:1

Measurement «A» to be taken, is a value of piston protrusion. It indicates by how much the plane formed by the piston crown protrudes from the plane formed by the upper part of the cylinder. The further the piston protrudes from the cylinder, the thicker the base gasket to be used (to restore the compression ratio) and vice versa. N.B.

NO GASKETS AND SEALS SHOULD BE ASSEMBLED BETWEEN THE CRANKCASE AND CYLINDER AND THE DIAL GAUGE EQUIPPED WITH SUPPORT SHOULD BE SET TO ZERO FOR MEASUREMENT «A» TO BE TAKEN WITH THE PISTON AT TOP DEAD CENTRE POSITION AND ON A RECTIFIED PLANE. CHAR - 24

MP3 125 ie

Characteristics

MODELS WITH METAL HEAD GASKET (0.3) Name Shimming 125 - Cylinder 67.8 - Head gasket 0.3 - Base gasket 0.6 Shimming 125 - Cylinder 67.8 - Head gasket 0.3 - Base gasket 0.8

Measure A 1.40 - 1.60

Thickness 0.60 ± 0.05

1.60 - 1.80

0.80 ± 0.05

Products RECOMMENDED PRODUCTS TABLE Product AGIP ROTRA 80W-90

Description Rear hub oil

AGIP CITY HI TEC 4T AGIP FILTER OIL

Oil to lubricate flexible transmissions (throttle control) Oil for air filter sponge

AGIP GP 330

Grease for brake lever, gas

AGIP CITY HI TEC 4T

Engine oil

AGIP BRAKE 4 AGIP PERMANENT SPEZIAL

Brake fluid coolant

Specifications SAE 80W/90 Oil that exceeds the requirements of API GL3 specifications Oil for 4-stroke engines Mineral oil with specific additives for increased adhesiveness White calcium complex soap-based spray grease with NLGI 2; ISO-L-XBCIB2 SAE 5W-40, API SL, ACEA A3, JASO MA Synthetic oil FMVSS DOT 4 Synthetic fluid Monoethylene glycol-based antifreeze fluid, CUNA NC 956-16

CHAR - 25

INDEX OF TOPICS

TOOLING

TOOL

MP3 125 ie

Tooling

SPECIFIC TOOLS Stores code 001330Y

Description Tool for fitting steering seats

001467Y014

Calliper to extract ø 15-mm bearings

005095Y

Engine support

002465Y

Calliper for circlips

006029Y

Punch for fitting steering bearing seat on steering tube

020004Y

Punch for removing steering bearings from headstock

020055Y

Wrench for steering tube ring nut

TOOL - 27

MP3 125 ie

Tooling

TOOL - 28

Stores code 020074Y

Description Support base for checking crankshaft alignment

020150Y

Air heater mounting

020151Y

Air heater

020193Y

Oil pressure check gauge

020262Y

Crankcase splitting plate

020263Y

Driven pulley assembly sheath

MP3 125 ie

Tooling

Stores code 020306Y

Description Punch for assembling valve seal rings

020329Y

Mity-Vac vacuum-operated pump

020330Y

Stroboscopic light to check timing

020331Y

Digital multimeter

020332Y

Digital rpm indicator

TOOL - 29

MP3 125 ie

Tooling

TOOL - 30

Stores code 020648Y

Description Single battery charger

020335Y

Magnetic mounting for dial gauge

020357Y 020359Y

32x35-mm Adaptor 42x47-mm Adaptor

020360Y

52x55-mm Adaptor

020363Y

20-mm guide

MP3 125 ie

Tooling

Stores code 020375Y

Description 28 x 30 mm adaptor

020376Y

Adaptor handle

020382Y

Valve cotters equipped with part 012 removal tool

020382Y011

adapter for valve removal tool

020393Y

Piston assembly band

020412Y

15-mm guide

TOOL - 31

MP3 125 ie

Tooling

TOOL - 32

Stores code 020423Y

Description Driven pulley lock wrench

020424Y

Driven pulley roller casing fitting punch

020426Y

Piston fitting fork

020431Y

Valve oil seal extractor

020434Y

Oil pressure check fitting

020444Y

Tool for fitting/ removing the driven pulley clutch

MP3 125 ie

Tooling

Stores code 020456Y 020477Y

Description Ø 24 mm adaptor 37 mm adaptor

020483Y

30-mm guide

020489Y

Hub cover support stud bolt kit

020428Y

Piston position check mounting

020680Y

Diagnosis Tool

TOOL - 33

MP3 125 ie

Tooling

TOOL - 34

Stores code 020621Y

Description HV cable extraction adaptor

001467Y035

Bearing housing, external ø 47 mm

020626Y

Driving pulley lock wrench

020626Y008 001467Y013

Driving pulley lock wrench Calliper to extract ø 15-mm bearings

020627Y

Flywheel lock wrench

020467Y

Flywheel extractor

MP3 125 ie

Tooling

Stores code 020430Y

Description Pin lock fitting tool

020622Y

Transmission-side oil seal punch

020480Y

Petrol pressure check kit

020244Y

15-mm diameter punch

020115Y

Ø 18 punch

020271Y

Tool for removing-fitting silent bloc

TOOL - 35

MP3 125 ie

Tooling

TOOL - 36

Stores code 020469Y

Description Reprogramming kit for scooter diagnostic tester

020481Y004

Parking control unit interface wiring

020639Y

Roll lock control unit software

001467Y017

Driver for OD 36 mm bearings

020234y 020441Y

extractor 26 x 28 mm adaptor

MP3 125 ie

Tooling

Stores code 020362Y

Description 12 mm guide

020358Y 001467Y002

37x40-mm Adaptor Driver for OD 73 mm bearing

020646Y

Parallelogram and steering positioning tool

020647Y

Toe-in checking tool

020688Y

Dial gauge support

TOOL - 37

INDEX OF TOPICS

MAINTENANCE

MAIN

MP3 125 ie

Maintenance

ADJUSTMENT PROCEDURE OF THE RING NUTS OF THE SIDE HEADSTOCKS Remove the Piaggio clip-on badge with a flatheaded screwdriver

Undo the screw under the badge and remove the centre headlight cover

Undo the screws "A" fastening the front grille

On both sides of the vehicle, undo the screw "B" at the bottom of the front grille surround and retrieve the shim

On both sides of the vehicle, undo the screws "C" inside the front wheel housing

MAIN - 39

Maintenance

Undo the screws "D" and remove the front grille surround

Undo the two upper fastener screws "E" for the headlight assembly

Undo the two lower fastener screws "F" and remove the headlight assembly from its seat

Undo the indicated screws and remove the windscreen

Undo the indicated screws and remove the spoiler

Undo the indicated screws

MAIN - 40

MP3 125 ie

MP3 125 ie

Maintenance

Undo the indicated screws and remove the complete shield

Once the plastics have been remove the ring nuts of the side headstock of the front suspension can be reached

Unscrew the upper ring nut

Bring the upper ring nut to the end of the headstock thread of the side suspension

Tighten the lower ring nut to the specified torque with the appropriate key.

Locking torques (N*m) Side headstock lower ring nut 12 ÷ 15

Screw the upper ring nut until it stops

MAIN - 41

MP3 125 ie

Maintenance

Tighten upper ring nut to the specified torque with the appropriate key. Carry out the assembly of the plastic covers in reverse order to the disassembly.

Specific tooling 020892y Steering side headstock ring nut key

Locking torques (N*m) Side headstock upper ring nut 20 - 24 Follow these steps to reset the service icons: 1. With the key set to OFF, hold down the "SET" button and turn the key to ON : the "BELT" and "SERVICE" icons start flashing. 2. Push the "CLOCK" button for less than 1 second and the icons are displayed sequentially. The icon selected remains ON and the other is no longer displayed. 3. Press the "CLOCK" button again for more than 3 seconds to reset the relative maintenance step and the icon is no longer displayed.

Maintenance chart SCHEDULED MAINTENANCE TABLE I: CHECK AND CLEAN, ADJUST, LUBRICATE OR REPLACE IF NECESSARY. C: CLEAN, R: REPLACE, A: ADJUST, L: LUBRICATE * Replace every 2 years Km x 1,000 Roller bearing - Driven pulley Safety fasteners Spark plug Drive belt Throttle control Air filter Oil filter CVT Filter Valve clearance Electrical system and battery Brake levers Brake fluid * Coolant * Engine oil Hub oil Headlight direction adjustment Brake pads

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1

5

I

A R

I L I I R R I

I

I

10 L I R I A C R C A I L I I R I I

15

R

I A I

20 L

25

R I A C R C I L I I R R I

I

I

30 L I R R A C R C A I L I I R I A I

35

40 L R I A C R C

I

I

I L I I R R I

45

R

I A I

50 L I R I A C R C A I L I I R I

55

I

I

I

60 L I R R A C R C I L I I R R A I

MP3 125 ie

Km x 1,000 Sliding shoes / CVT rollers Tyre pressure and wear Vehicle road test Radiator (external cleaning) Suspension Steering Roll lock gripper control cable Transmission Operation time

Maintenance

1

5

I I

10 R I I

I A A

I A A

15

20 R I I

25

I

12 0'

10'

16 5'

I A A L 75'

13 5'

10'

30 R I I I I A A L 18 5'

35

40 R I I

45

50 R I I

55

I I A A 10'

13 5'

I A A L 75'

16 5'

10'

60 R I I I I A A L 16 5'

Spark plug Remove the port on the left-hand side panel of the vehicle by undoing the fixing screw and using a small screwdriver in the rear recess shown in the figure, then do the following: - Disconnect the HV wire cap «A» of the spark plug; - Unscrew the spark plug using the wrench supplied; - Upon refitting, place the spark plug at the required angle and tighten by hand until it is finger tight; - Use the wrench only for final tightening of the spark plug; - Place cap «A» fully over the spark plug. - Refit the port making sure the rear hook is inserted. WARNING

THE SPARK PLUG MUST BE REMOVED WHEN THE ENGINE IS COLD. REPLACE THE SPARK PLUG AS INDICATED IN THE SCHEDULED MAINTENANCE TABLE. THE USE OF ELECTRONIC CENTRAL UNITS AND OF NONCOMPLIANT ELECTRONIC IGNITIONS OR SPARK PLUGS OTHER THAN THOSE PRESCRIBED MAY SERIOUSLY DAMAGE THE ENGINE. N.B. USE OF SPARK PLUGS OTHER THAN THE INDICATED TYPE OR UNSHIELDED SPARK PLUG CAPS CAN LEAD TO FAULTS IN THE VEHICLE'S ELECTRICAL SYSTEM.

Characteristic Spark plug NGK CR8EB

Electric characteristic MAIN - 43

Maintenance

Electrode gap 0.7 to 0.8 mm

Hub oil Check -Place the vehicle on the centre stand on flat ground; - Remove the oil dipstick «A», dry it with a clean cloth and put it back into its hole tightening it completely;

Remove the dipstick and check that the oil level is slightly over the second notch starting from the lower end; if the level is below the MAX mark, it needs to be filled up with the right amount of hub oil. -Screw up the oil dipstick again and make sure it is locked properly into place.

Replacement -Remove the oil filler cap «A». - Unscrew the oil drainage cap «B» and drain out all the oil. - Screw in the drainage cap again and fill the hub with the prescribed oil.

Recommended products AGIP ROTRA 80W-90 Rear hub oil SAE 80W/90 Oil that exceeds the requirements of API GL3 specifications

Characteristic Rear hub oil Capacity approximately 250 cc

Locking torques (N*m) Hub oil drainage screw 15 to 17 Nm

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MP3 125 ie

MP3 125 ie

Maintenance

Air filter - Undo the fixing screws «A» (two of which are on the knob-type head) and remove the air-box cover.

Cleaning: - Wash the sponge with water and mild soap. - Dry it with a clean cloth and short blasts of compressed air. - Soak it in a mixture of 50% petrol and 50% specified oil. - Gently squeeze the filtering element with your hands but do not wring it; allow it to drip dry and then refit. CAUTION

IF THE VEHICLE IS USED ON DUSTY ROADS IT IS NECESSARY TO CARRY OUT MAINTENANCE CHECKS OF THE AIR FILTER MORE OFTEN TO AVOID DAMAGING THE ENGINE.

Recommended products AGIP FILTER OIL Oil for air filter sponge Mineral oil with specific additives for increased adhesiveness

CVT filter removal - Undo the three screws «1» and remove the crankcase cover «2».

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Maintenance

MP3 125 ie

- Undo the three screws «3» and remove the filter cover in the transmission housing «4».

- Take out the filtering element «5» from the cover.

CVT filter cleaning 1. Wash the sponge with water and mild soap. 2. Dry it with a clean cloth and short blasts of compressed air. CAUTION

IF THE VEHICLE IS USED ON DUSTY ROADS SERVICE THE CVT FILTER MORE OFTEN TO AVOID DAMAGING THE ENGINE.

Engine oil In four stroke engines, the engine oil is used to lubricate the distribution elements, the bench bearings and the thermal group. An insufficient quantity of oil can cause serious damage to the engine. In all four stroke engines, the deterioration of the oil characteristics, or a certain consumption should be considered normal, especially if during the run-in period. Consumption levels in particular can be influenced by the conditions of use (e.g.: oil consumption increases when driving at "full throttle".

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MP3 125 ie

Maintenance

Replacement Change oil and replace filter as indicated in the scheduled maintenance table. The engine should be emptied by draining the oil through the drainage cap «B» and by removing the mesh pre-filter.

To facilitate oil drainage, loosen the cap/dipstick «A».

Once all the oil has drained through the drainage hole, unscrew and remove the oil cartridge filter «C ».

Make sure the pre-filter and drainage plug O-rings are in good conditions. Lubricate them and refit the mesh filter and the oil drainage plug, screwing them up to the prescribed torque. Refit the new cartridge filter being careful to lubricate the O-ring before fitting it. Change the engine oil. Since a certain quantity of oil still remains in the circuit, engine oil must be added through plug «A». Then start the vehicle, leave it running for a

MAIN - 47

Maintenance

few minutes and switch it off: after five minutes check the level and if necessary top up without exceeding the MAX level. The cartridge filter must be replaced every time the oil is changed. Use new oil of the recommended type for topping up and changing purposes. N.B. THE ENGINE MUST BE HOT WHEN THE OIL IS CHANGED.

Recommended products AGIP CITY HI TEC 4T Engine oil SAE 5W-40 Synthetic oil that exceed the requirements of API SL, ACEA A3, JASO MA specifications

Locking torques (N*m) Engine oil filter 12 - 16 Engine oil drainage plug 24 to 30

Check This operation must be carried out with the engine cold and following the procedure below: - Place the vehicle on its centre stand and on flat ground. - Unscrew the cap/dipstick «A», dry it with a clean cloth and reinsert it, screwing it all the way down. - Remove the cap/dipstick again and check that the level is between the min and max reference marks; top-up, if required. If the check is carried out after the vehicle has been used, and therefore with a hot engine, the level line will be lower; in order to carry out a correct check, wait at least 10 minutes after the engine has been stopped so as to get the correct level.

MAIN - 48

MP3 125 ie

MP3 125 ie

Maintenance

Oil top-up The oil should be topped up after having checked the level and in any case by adding oil without ever exceeding the MAX. level. Restoration of the level from MIN to MAX requires approximately 200 cc.

Engine oil filter The cartridge filter must be replaced every time the oil is changed. Use new oil of the recommended type for topping up and changing purposes. Make sure the pre-filter and drainage plug O-rings are in good conditions. Lubricate them and refit the mesh filter and the oil drainage plug, screwing them up to the prescribed torque. Refit the new cartridge filter being careful to lubricate the O-ring before fitting it. Change the engine oil.

Recommended products AGIP CITY HI TEC 4T Engine oil SAE 5W-40 Synthetic oil that exceed the requirements of API SL, ACEA A3, JASO MA specifications

Oil pressure warning light The vehicle is equipped with a telltale light on the dashboard that lights up when the key is turned to the «ON» position. However, this light should switch off once the engine has been started. If the light turns on during braking, at idling speed or while turning a corner, it is necessary to check the oil level and the lubrication system.

Cooling system Adding engine coolant. Check coolant level when the engine is cold as indicated in the scheduled maintenance table, following the steps below: Place the vehicle on its centre stand and on flat ground.

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Maintenance

- Undo the screw shown in the figure and remove the expansion tank cap on RHS. - Top up if the fluid level is near or below the MIN level edge. The liquid level must always be between the MIN and MAX level. -The coolant consists of an ethylene glycol and corrosion inhibitor based 50% de-ionised waterantifreeze solution mix. CAUTION DO NOT EXCEED THE MAX. LEVEL WHEN FILLING SO AS TO AVOID THE COOLANT ESCAPING FROM THE EXPANSION TANK WHEN THE VEHICLE IS IN USE.

Recommended products AGIP PERMANENT SPEZIAL Coolant Monoethylene glycol based antifreeze solution, CUNA NC 956-16

Braking system Level check FRONT AND REAR BRAKING SYSTEM LEVEL CHECK The front and rear brake fluid reservoirs are both positioned on the handlebars. Proceed as follows: - Rest the vehicle on its centre stand with the handlebars perfectly horizontal; - Check the fluid level through the sight glass «C». A drop in the brake fluid level may be caused by pad wear.

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MP3 125 ie

MP3 125 ie

Maintenance

Top-up FRONT AND REAR BRAKING SYSTEM TOPPING UP Proceed as follows: Loosen the screw «B» and lift the plastic cover «A» in order to access the brake fluid reservoir. Loosen the two fixing screws and remove the reservoir cover; top-up with the recommended fluid without exceeding the 'MAX.' mark. This procedure applies to the rear brake pump topup operation; follow the same procedure for the front brake pump. Under standard climatic conditions, replace fluid as indicated in the scheduled maintenance table. WARNING

ONLY USE DOT 4 CLASS BRAKE FLUIDS. BRAKING CIRCUIT FLUIDS ARE HIGHLY CORROSIVE. MAKE SURE THAT IT DOES NOT COME INTO CONTACT WITH THE PAINTWORK. CAUTION

AVOID CONTACT OF THE BRAKE FLUID WITH YOUR EYES, SKIN, AND CLOTHING. IN CASE OF ACCIDENTAL CONTACT, WASH WITH WATER.

Recommended products AGIP BRAKE 4 Brake fluid FMVSS DOT4 Synthetic fluid

Headlight adjustment

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Maintenance

Proceed as follows: 1. Position the unloaded vehicle, in running order and with the tyres inflated to the prescribed pressure, on a flat surface 10 m away from a half-lit white screen; ensure that the longitudinal axis of the vehicle is perpendicular to the screen; 2. Remove the headlight assembly central cover 3. Turn on the headlight and check that the limit of the projected light beam is not over 9/10 or below 7/10 of the distance from the ground to the centre of the vehicle headlight; 4. Otherwise, adjust the headlight with the screws«A» indicated in the figure N.B. THE ABOVE PROCEDURE COMPLIES WITH THE EUROPEAN STANDARDS REGARDING MAXIMUM AND MINIMUM HEIGHT OF LIGHT BEAMS. REFER TO THE STATUTORY REGULATIONS IN FORCE IN EVERY COUNTRY WHERE THE VEHICLE IS USED.

MAIN - 52

MP3 125 ie

INDEX OF TOPICS

TROUBLESHOOTING

TROUBL

MP3 125 ie

Troubleshooting

This section makes it possible to find what solutions to apply when troubleshooting. For each failure, a list of the possible causes and pertaining operations is given.

Engine Excessive oil consumption/Exhaust smoke EXCESSIVE CONSUMPTION Possible Cause Operation Wrong valve adjustment Adjust the valve clearance properly Overheated valves Remove the head and the valves, grind or replace the valves Misshapen/worn valve seats Replace the head unit Worn cylinder, Worn or broken piston rings Replace the piston cylinder assembly or piston rings Worn or broken piston rings or piston rings that have not been Replace the piston cylinder unit or just the piston rings fitted properly Oil leaks from the couplings or from the gaskets Check and replace the gaskets or restore the coupling seal Worn valve oil seal Replace the valve oil seal Worn valve guides Check and replace the head unit if required

Insufficient lubrication pressure LOW LUBRICATION PRESSURE Possible Cause By-Pass remains open Oil pump with excessive clearance Oil filter too dirty Oil level too low

Operation Check the By-Pass and replace if required. Carefully clean the By-Pass area. Perform the dimensional checks on the oil pump components Replace the cartridge filter Restore the level by adding the recommended oil type.

Transmission and brakes Clutch grabbing or performing inadequately IRREGULAR CLUTCH PERFORMANCE OR SLIPPAGE Possible Cause Faulty clutch

Operation Check that there is no grease on the masses. Check that the clutch mass faying surface with the bell is mainly in the centre with equivalent characteristics on the three masses. Check that the clutch casing is not scored or worn in an anomalous way

Insufficient braking INEFFICIENT BRAKING SYSTEM Possible Cause Inefficient braking system

Fluid leakage in hydraulic braking system

TROUBL - 54

Operation Check the pad wear (1.5 min). Check that the brake discs are not worn, scored or warped. Check the correct level of fluid in the pumps and change brake fluid if necessary. Check there is no air in the circuits; if necessary, bleed the air. Check that the front brake calliper moves in axis with the disc. Failing elastic fittings, plunger or brake pump seals, replace

MP3 125 ie

Troubleshooting

Possible Cause Brake disc slack or distorted

Operation Check the brake disc screws are locked; measure the axial shift of the disc with a dial gauge and with wheel mounted on the vehicle.

Brakes overheating BRAKE OVERHEAT Possible Cause Defective plunger sliding Brake disc slack or distorted

Clogged compensation holes on the pump Swollen or stuck rubber gaskets

Operation Check calliper and replace any damaged part. Check the brake disc screws are locked; use a dial gauge and a wheel mounted on the vehicle to measure the axial shift of the disc. Clean carefully and blast with compressed air Replace gaskets.

Steering and suspensions Heavy steering STEERING HARDENING Possible Cause Steering hardening

Operation Check the tightening of the top and bottom ring nuts. If irregularities continue in turning the steering even after making the above adjustments, check the seats in which the ball bearings rotate: replace them if they are recessed or if the balls are flattened.

Excessive steering play EXCESSIVE STEERING CLEARANCE Possible Cause Torque not conforming

Operation Check the tightening of the top and bottom ring nuts. If irregularities continue in turning the steering even after making the above adjustments, check the seats in which the ball bearings rotate: replace them if they are recessed or if the balls are flattened.

Noisy suspension NOISY SUSPENSION Possible Cause Faults in the suspension system

Operation If the front suspension is noisy, check: the efficiency of the front shock absorber; the condition of the ball bearings and relevant lock-nuts, the limit switch rubber buffers; and the movement bushings. In conclusion, check the tightening torque of the wheel hub, the brake calliper, the shock absorber disc in the attachment to the hub and the steering tube.

TROUBL - 55

MP3 125 ie

Troubleshooting

Suspension oil leakage OIL LEAKAGE FROM SUSPENSION Possible Cause Faulty or broken seals

TROUBL - 56

Operation Replace the shock absorber Check the condition of wear of the steering covers and the adjustments.

INDEX OF TOPICS

ELECTRICAL SYSTEM

ELE SYS

Electrical system

1. Instrument panel 2. Rear right turn indicator bulbs 3. Front right turn indicator bulb 4. Turn indicator switch 5. Front left turn indicator bulb 6. Rear left turn indicator bulbs 7. Hazard button 8. Turn indicator control device with Hazard 9. Pre-installation for anti-theft device 10. Headlight with twin-filament bulb 11. Front position light bulbs 12. License plate bulb 13. Tail light bulbs 14. Key switch contacts 15. Headlight remote control 16. Stop buttons 17. Saddle opening button 18. Boot opening switch 19. Boot opening actuator 20. Saddle opening actuator ELE SYS - 58

MP3 125 ie

MP3 125 ie

Electrical system

21. Light switch 22. Engine stop switch 23. Electric fan 24. Electric fan remote control 25. Boot and helmet compartment light bulb 26. Boot light switch 27. Helmet compartment light switch 28. Magneto flywheel 29. Voltage regulator 30. Main fuses 31. Battery 32. Starter remote control switch 33. Starter button 34. Starter motor 35. Key switch contacts 36. Stop light bulbs 37. Injection load remote control 38. Pre-installation for saddle opening receiver 39. Horn remote control 40. Geared motor 41. Brake calliper sensor 42. Parking control ECU 43. Tilt locking/unlocking switch 44. Hand brake 45. Rider presence sensor 46.Potentiometer 47. Lambda sensor 48. Left speed sensor 49. Right speed sensor 50. Engine rpm sensor 51. HV coil 52. Fuel injector 53. Water pump 54. Engine temperature sensor 55. Fuel pump 56. Diagnosis socket 57. Injection ECU 58. Immobilizer Aerial ELE SYS - 59

Electrical system

59. External temperature sensor 60. Pressure sensor 61. MODE button 62. Fuel level transmitter 63. Oil pressure sensor 64. Horn 65. Horn button 66. Key switch contacts 67. Auxiliary fuses Key Ar: Orange Az: Sky Blue Bi: White Bl: Blue Gi: Yellow Gr: Grey Ma:Brown Ne: Black Ro: Pink Rs: Red Ve: Green Vi: Purple

Components arrangement

ELE SYS - 60

MP3 125 ie

MP3 125 ie

Electrical system

1. Injection ECU Remove the inspection cover placed in the helmet compartment to reach it.

2. Turn indicator control device Remove the left side fairing to reach it.

3. Rider detection sensor The sensor is placed under the saddle.

4. Ignition switch 5. Immobilizer antenna Remove the leg shield back plate to reach it.

ELE SYS - 61

Electrical system

6. Pressure sensor Remove the shield to reach it.

7. Gear motor Remove the shield to reach it.

8. Solenoids Remove the shield to reach it. A. Injection load solenoid B. Electric fan solenoid C. Horn solenoid D. Headlight solenoid

9. External temperature sensor The sensor is fixed to the front wheel compartment.

ELE SYS - 62

MP3 125 ie

MP3 125 ie

Electrical system

10. Right and left speed sensors The sensors are located the internal section of the front wheel.

11. Horn Remove the front wheel housing to reach it.

12. Parking control ECU Remove the leg shield back plate to reach it.

13. Auxiliary fuses Remove the cover placed on the vehicle RHS, lower part, to reach them.

ELE SYS - 63

Electrical system

14. Fuel level transmitter Remove the central cover to reach it.

15. HV coil Remove the helmet compartment to reach it.

16. Magneto flywheel 17. Engine speed sensor The cable harness of these components exit from the flywheel, the connectors are fixed to the chassis on the vehicle right hand side. 18. Voltage regulator Remove the right side fairing to reach it.

19. Starter relay Remove the right side fairing to reach it.

20. Battery 21. Main fuses Remove the battery cover placed in the helmet compartment to reach them.

ELE SYS - 64

MP3 125 ie

MP3 125 ie

Electrical system

Ground points 1. Ground point on engine Remove the plastic cover placed on the engine left side to reach it.

2. Ground point on chassis Remove the left footrest to reach them.

Conceptual diagrams

ELE SYS - 65

Electrical system

Ignition

1. Instrument panel 30. Main fuses 31. Battery 35. Key switch contacts 37. Injection load remote control 50. Engine rpm sensor 51. HV coil 57. Injection ECU 58. Immobilizer Aerial 67. Auxiliary fuses

ELE SYS - 66

MP3 125 ie

MP3 125 ie

Electrical system

Battery recharge and starting

1. Instrument panel 16. Stop buttons 22. Engine stop switch 28. Magneto flywheel 29. Voltage regulator 30. Main fuses 31. Battery 32. Starter remote control switch 33. Starter button 34. Starter motor 35. Key switch contacts 36. Stop light bulbs 57. Injection ECU 66. Key switch contacts 67. Auxiliary fuses

ELE SYS - 67

Electrical system

Level indicators and enable signals section

1. Instrument panel 30. Main fuses 31. Battery 35. Key switch contacts 37. Injection load remote control 41. Brake calliper sensor 42. Parking control ECU 43. Tilt locking/unlocking switch 46. Potentiometer 47. Lambda sensor 48. Left speed sensor 49. Right speed sensor 50. Engine rpm sensor 52. Fuel injector 54. Engine temperature sensor 57. Injection ECU 59. External temperature sensor 62. Fuel level transmitter

ELE SYS - 68

MP3 125 ie

MP3 125 ie

Electrical system

63. Oil pressure sensor 67. Auxiliary fuses

Devices and accessories

1. Instrument panel 2. Rear right turn indicator bulbs 3. Front right turn indicator bulb 5. Front left turn indicator bulb 6. Rear left turn indicator bulbs 9. Pre-installation for anti-theft device 14. Key switch contacts 17. Saddle opening button 18. Boot opening switch 19. Boot opening actuator 20. Saddle opening actuator 23. Electric fan 24. Electric fan remote control 25. Boot and helmet compartment light bulb 26. Boot light switch 27. Helmet compartment light switch ELE SYS - 69

Electrical system

30. Main fuses 31. Battery 35. Key switch contacts 37. Injection load remote control 38. Pre-installation for saddle opening receiver 39. Horn remote control 40. Geared motor 42. Parking control ECU 44. Hand brake 53. Water pump 55. Fuel pump 57. Injection ECU 60. Pressure sensor 61. MODE button 64. Horn 65. Horn button 66. Key switch contacts 67. Auxiliary fuses

Lights and turn indicators

ELE SYS - 70

MP3 125 ie

MP3 125 ie

Electrical system

1. Instrument panel 2. Rear right turn indicator bulbs 3. Front right turn indicator bulb 4. Turn indicator switch 5. Front left turn indicator bulb 6. Rear left turn indicator bulbs 7. Hazard button 8. Turn indicator control device with Hazard 10. Headlight with twin-filament bulb 11. Front position light bulbs 12. License plate bulb 13. Tail light bulbs 15. Headlight remote control 21. Light switch 30. Main fuses 31. Battery 35. Key switch contacts 42. Parking control ECU 66. Key switch contacts 67. Auxiliary fuses

Checks and inspections This section is dedicated to the checks on the electrical system components.

Immobiliser The electronic ignition system is managed by the control unit in which the immobiliser system is integrated. The immobiliser is an antitheft system which allows the vehicle to function only if it is activated by means of the coded keys that the control unit recognises. The code is integrated in a transponder in the key block. This allows the driver clear operation without having to do anything other than just turning the key. The Immobilizer system consists of the following components: - an electronic control unit - immobilizer aerial - master key with incorporated transponder (red key) - service key with incorporated transponder (black key) - HV coil - diagnosis LED The diagnosis LED also works as a theft-deterrent blinker. This function is activated every time the ignition key is set to «OFF» or the emergency stop switch is set to «OFF». It remains activated for 48 ELE SYS - 71

Electrical system

MP3 125 ie

hours in order not to affect the battery charge. When the ignition key is turned to «ON», the deterring blinker function is deactivated. Subsequently, a flash confirms the switching to « ON». The duration of the flash depends on the programming of the electronic control unit If the LED is off regardless of the position of the ignition key and/or the instrument panel is not initiated, check if: •

there is battery voltage

•

fuses No. 2, 5 and 10 are in working order

•

there is power to the control unit as specified below:

With the ignition key set to « OFF»: •

check whether there is battery voltage between terminals 10-38 and terminal 10-chassis ground (fixed power supply). If there is no voltage, check that fuse 5 and its cable harness are in working order.

With the ignition key set to «ON»: •

check whether there is battery voltage between terminals 18-38 and terminal 18-ground chassis (fixed power supply). If there is no voltage, check the ignition key contacts and that fuses No. 2 and 10 and their cables are in working order.

•

whether there is voltage between terminal 24 and ground with the emergency stop switch set to «RUN». If there is no voltage, check the contacts of the switch.

ELE SYS - 72

MP3 125 ie

Electrical system

After removing the leg shield back plate, remove the electrical connection from the aerial as shown in the picture.

Remove the protective base from the connector.

With the ignition key at ON check there is battery voltage between the Red-White and Black cables

With ECU connector disconnected, check if there is continuity between the aerial Orange-White cable and pin 29 of the control unit.

Specific tooling 020331Y Digital multimeter

Virgin circuit When the ignition system is not encrypted, any key will start the engine but limited to 2000 rpm. The keys can only be recognised if the control unit has been programmed properly. The data storage procedure for a previously not programmed control unit provides for the recognition of the Master as the ELE SYS - 73

Electrical system

MP3 125 ie

first key to be stored to memory: this becomes particularly important because it is the only key that enables the control unit to be wiped clean and reprogrammed for the memorisation of the service keys. The Master and service keys must be used to code the system as follows: - Insert the Master key, turn it to «ON» and keep this position for 2 seconds (limit values 1-3 seconds). - Insert the service key and turn it to «ON» for 2 seconds. - If you have copies of the key, repeat the operation with each key. - Insert the Master key again and turn it to «ON » for 2 seconds. The maximum time to change keys is 10 seconds. A maximum of 7 service keys can be programmed at one time. It is essential to adhere to the times and the procedure. If you do not, start again from the beginning. Once the system has been programmed, the Master key transponder is strictly matched with the control unit. With this link established, it is now possible to encode new service keys, in the event of losses, replacements, etc. Each new programming deletes the previous one; to add or delete a key it is therefore necessary to repeat the procedure using all the keys that you intend to keep in use. If a service key becomes uncoded, the efficiency of the high voltage circuit shielding must be thoroughly inspected: In any case it is advisable to use resistor spark plugs.

Characteristic MASTER key: RED KEY SERVICE key. BLACK KEY

Diagnostic codes The Immobilizer system is tested each time the ignition key is turned from «OFF» to «ON». During this diagnosis phase a number of control unit statuses can be identified and various light codes displayed. Regardless of the code transmitted, if at the end of the diagnosis the LED remains off permanently, the ignition is enabled. If, however, the LED remains on permanently, it means the ignition is inhibited: 1. Previously unused control unit - key inserted: a single 2 second flash is displayed, after which the LED remains off permanently. The keys can be stored to memory, the vehicle can be star-

ELE SYS - 74

MP3 125 ie

Electrical system

ted but with a limitation imposed on the number of revs. 2. Previously unused control unit - transponder absent or cannot be used: the LED is on permanently. In this condition no operations are possible including the start up of the vehicle. 3. Programmed control unit - the service key in (normal condition of use): a single 0.7-second flash is displayed, after which the LED remains off steadily. The engine can be started. 4. Programmed control unit - Master key in: a 0.7-sec flash is displayed followed by the LED remaining off for 2 sec and then by short 0.46-sec flashes, the same number of times as there are keys stored in the memory including the Master key. When the diagnosis has been completed, the LED remains permanently OFF. The engine can be started. 5. Programmed control unit - fault detected: a light code is displayed according to the fault detected, after which the LED remains on steadily. The engine cannot be started. The codes that can be transmitted are: •

1-flash code

•

2-flash code

•

3-flash code

Diagnostic code - 1 flash A one-flash code indicates a system where the serial line is not present or is not detected. Check the Immobilizer aerial wiring and change it if necessary.

ELE SYS - 75

Electrical system

MP3 125 ie

Diagnostic code - 2 flashes A two-flash code shows a system where the control unit does not show the transponder signal. This might depend on the inefficiency of the immobiliser aerial or the transponder. Turn the switch to ON using several keys: if the code is repeated even with the Master key, check the aerial wiring and change it if necessary. If this is not the case, replace the defective key and/or reprogram the control unit. Replace the control unit if the problem continues.

Diagnostic code - 3 flashes A three-flash code indicates a system where the control unit does not recognise the key. Turn the switch to ON using several keys: if the error code is repeated even with the Master key, replace the control unit. If this is not the case, reprogram the decoder.

No spark plug WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. HV coil primary resistance value: Disconnect the connector of the HV coil and remove the protective base shown in the figure. Measure the resistance present between the RedBlack and Black-Green terminals. Repeat checks between pin 1 of the control unit connector and the Black-Green cable of the injection load solenoid. If the value measured is incorrect, check cable harness for integrity.

Electric characteristic HV coil resistance primary value: ELE SYS - 76

MP3 125 ie

Electrical system

260 ± 26 mΩ

Battery recharge circuit The charging circuit consists of three-phase alternator and a permanent magneto flywheel. The generator is directly connected to the voltage regulator. This, in its turn, is connected directly to the ground and the battery positive terminal passing through the 30A protective fuse. The three-phase alternator provides good recharge power and at low revs a good compromise is achieved between generated power and idle stability.

Remote controls check To check the operation of a relay: 1) Check that, given regular conditions, there is no continuity between terminals 87 and 30. 2) Apply a 12V voltage to power terminals 86 and 85 of the relay. 3) With the relay fed, check that there is continuity between terminals 87 and 30. 4) If these conditions are not met, the relay is surely damaged and, therefore, it should be replaced.

Switches check To check buttons and switches, check that, according to their position, the continuity of contacts is correct as indicated in the following charts. KEY Ar: Orange Az: Sky Blue Bi: White Bl: Blue Gi: Yellow Gr: Grey Ma: Brown Ne: Black Ro: Pink Rs: Red Ve: Green Vi: Purple ENGINE STOP SWITCH

ELE SYS - 77

Electrical system

STARTER BUTTON

LIGHT SWITCH

TURN INDICATOR SWITCH

HORN BUTTON

ELE SYS - 78

MP3 125 ie

MP3 125 ie

Electrical system

HELMET COMPARTMENT LIGHT SWITCH

SADDLE OPENING SWITCH

CASE OPENING SWITCH

HAZARD BUTTON

ELE SYS - 79

Electrical system

MP3 125 ie

MODE BUTTON

Stator check Checking the stator windings WARNING

THIS CHECK-UP CAN BE MADE WITH THE STATOR PROPERLY INSTALLED. 1) Remove the right side panel. 2) Disconnect the connector between stator and regulator with the three Black cables as shown in the picture. 3) Measure the resistance between each of the Black terminals and the other two.

Electric characteristic Resistance: 0.2 - 1 Ω 4) Ensure that each Black cable is isolated from the ground. 5) If values are incorrect, replace the stator.

Recharge system voltage check Look for any leakage 1) Access the battery by removing its cover under the saddle. 2) Check that the battery does not show signs of losing fluid before checking the output voltage. 3) Turn the ignition key to position OFF, connect the terminals of the tester between the negative pole (-) of the battery and the black cable and only then disconnect the black cable from the negative pole (-) of the battery. 4) With the ignition key always at OFF, the reading indicated by the ammeter must be ≤ 0.5 mA. ELE SYS - 80

MP3 125 ie

Electrical system

Charging current check WARNING

BEFORE CARRYING OUT THE CHECK, MAKE SURE THAT THE BATTERY IS IN GOOD WORKING ORDER. 1) Place the vehicle on its centre stand 2) With the battery correctly connected to the circuit, place the multimeter leads between the battery terminals.. 3) Turn on the engine, increase the engine rpm and, at the same time, measure the voltage.

Electric characteristic Voltage ranging between 14.0 and 15.0V at 5000 rpm. Maximum current output check. - With the engine off and the panel at «ON» with the lights on, allow the battery voltage to stop at 12V. - Connect ammeter pliers to the 2 recharge positive poles in output from the regulator. - Start the engine and rev it up to a high engine speed while reading the value on the pincer. With an efficient battery a value must be detected: > 20A

VOLTAGE REGULATOR/RECTIFIER Specification Type Voltage

Desc./Quantity Non-adjustable three-phase transistor 14 to 15V at 5000 rpm with lights off

Starter motor

KEY 1. Battery ELE SYS - 81

Electrical system

MP3 125 ie

2. Fuse No. 2 3. Key switch contacts 4. Fuse No. 8 5. Stop buttons 6. Injection ECU 7. Starter button 8. Starter remote control switch 9. Starter motor WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. 1) Check fuses No. 2 and 8. 2) Check key switch contacts. 3) Check the contacts of the stop buttons and the starter button. 4) With the key switch set to «ON», the brake pulled and the starter button pressed, check if there is voltage between the Orange-White cable of the starter remote control base and the ground connection. 5)If no voltage is detected, check cable harnesses for continuity. 6) Check if there is continuity of the Orange-Blue cable between the starter remote control base and pin 20 of the control unit. 7) Check the starter remote control switch. 8) Check if there is continuity of the Red cable between the battery and the remote control base. Also check if there is continuity between the latter and the starter motor.

ELE SYS - 82

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Electrical system

Horn control

KEY 1. Battery 2. Fuse No. 2 3. Key switch contacts 4. Fuse No. 9 5. Horn button 6. Horn WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. 1) Check fuses No. 2 and 9. 2) Check key switch contacts. 3)Check the horn button contacts. 4) With the key switch set to «ON» and the horn button pressed, check whether there is voltage between the Yellow-Pink cable of the horn connector and the ground connection. 5)If no voltage is detected, check cable harnesses for continuity. 6) Check that the Black cable of the horn connector is grounded.

ELE SYS - 83

Electrical system

MP3 125 ie

Turn signals system check

KEY 1. Battery 2. Fuse No. 4 3. Key switch contacts 4. Fuse No. 12 5. Turn indicator switch 6. Hazard button 7. Turn indicator control device with Hazard 8. Rear right turn indicator bulbs 9. Front right turn indicator bulb 10. Front left turn indicator bulb 11. Rear left turn indicator bulbs WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. 1) Check that bulbs operate properly. 2) Check fuses No. 4 and 12. 3) Check the contacts of the key switch, the turn indicator switch and the Hazard button. 4)With the key switch set to «ON», check whether there is voltage: - in the White-Pink cable between turn indicator control device and the ground lead, with the turn indicator switch pressed to the left. ELE SYS - 84

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Electrical system

- in the Blue-Black cable between turn indicator control device and the ground lead, with the turn indicator switch pressed to the right. - in the Brown cable between turn indicator control device and the ground lead, with the Hazard button pressed. 5) If there is no voltage, check that there is continuity in the relevant cable harness. 6) Check that the turn indicator control device is powered by make sure there is voltage: - between the Blue and Black cables. - between the Yellow-Black cable and the Black cable, with the key switch set to «ON». 7) Check that the cable harnesses are not interrupted wherever no voltage is detected. 8) Check if there is continuity of the cable harnesses that connect the bulbs to the turn indicator control device. 9) Check the bulbs ground connection.

level indicators

KEY 1. Instrument panel 2. Fuel level transmitter WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. 1) With a multimeter, check resistance values between the White-Green cable and the Black cable of the fuel level transmitter under different conditions. ELE SYS - 85

Electrical system

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2) If the values measured are correct but the indication on the instrument panel is not exact, check if there is continuity of the White-Green cable.

Electric characteristic Resistance value when the tank is full 12 V check that the fuel pressure is 2.5 BAR and that the input current is 1.4 to 1.8 A

With the battery voltage > 12 V, check the pump flow rate by disconnecting from the injector the pipe equipped with the pressure gauge of the appropriate tool. Get a graded burette with a flow rate of approximately 1 L. Rotate the pump using the active diagnoses of the palm top computer. Using a pair of long flat needle-nose pliers, choke the fuel pipe making the pressure stabilise at approx. 2.5 BAR. Check that within 15 seconds the pump has a flow rate of approx. 110 cm³.

Specific tooling 020480Y Petrol pressure check kit

INJEC - 184

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Injection

Fuel filter check Disconnect the terminals from the electric pump

Remove the screw shown in the picture

Remove the clip fixing the piping to the filter shown in the picture

Separate the lower part of the pump mounting as shown in the picture.

INJEC - 185

Injection

Remove the filter from the pump mounting

INJEC - 186

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Injection

Inspecting the injector circuit

INJEC - 187

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Injection

INJECTION LOADS 1 2 3 4 5 6 7 8 9 10 11

Specification Battery Electronic control unit Fuse Ignition switch contacts Fuse Fuse Injection load relay Fuel pump Fuel injector H.V. coil Water pump

Check the efficiency of injection load 15 A fuse No. 5. Check that the live control unit power supply 7.5A fuse No. 10 works properly.

Check the efficiency of the injection load solenoid as described in the Electrical system chapter.

Check the power supply line of the injection load solenoid energising coil: after switching to «ON», make sure there is battery voltage, for 2 seconds, between the Red-White cable and the Black-Purple cable of the solenoid base. If there is not, check the continuity of the Red-White cable between the fuse box and the solenoid base and of the BlackPurple cable between the pin 3 of the control unit and the solenoid base. INJEC - 188

Desc./Quantity 12V - 12 Ah 20A 7.5 A 15A

MP3 125 ie

Injection

N.B. CONTINUITY TESTS MUST BE CARRIED OUT WITH THE COMPONENTS DISCONNECTED. (RELAYS, CONTROL UNIT, FUSES ETC.).

Check the presence of fixed voltage between the grey/black cable of the solenoid base and earth. If there is none check the continuity of the grey/black cable between the fuse box (No. 5 15 A) and the solenoid base. N.B. CONTINUITY TESTS MUST BE CARRIED OUT WITH THE COMPONENTS DISCONNECTED. (RELAYS, CONTROL UNIT, FUSES ETC.).

INJEC - 189

Injection

With the control unit and the injector disconnected, check if there is continuity in the Red-Yellow cable between pin 12 of the control unit connector and the injector connector

Switch to «ON» and check if there is voltage, with injector disconnected and control unit connected, between the Black-Green cable of the injector connector and the ground lead

INJEC - 190

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Injection

With injector disconnected and the injector load solenoid disconnected, check the continuity of the Black-Green cable between the injector connector and solenoid base.

Inspecting the injector hydraulics To carry out the injector check, remove the intake manifold by removing the three clamping screws at the head and the clip connecting the control unit to the manifold.

Install the appropriate tool for checking fuel pressure and position the manifold over a container graduated by at least 100 cm³. Connect the injector with the cable making up part of the supply for the injection tester. Connect the clamps of the cable to an auxiliary battery. Activate the fuel pump with the active diagnosis. Check that, within fifteen seconds, approximately 40 cm³ of fuel is dispensed with an adjustment pressure of approximately 2.5 BAR.

Specific tooling 020480Y Petrol pressure check kit

INJEC - 191

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Injection

Proceed with the injector seal test. Dry the injector outlet with a blast of compressed air. Activate the fuel pump. Wait for one minute, making sure there are no leaks coming from the injector. Slight oozing is normal. Value limit = 1 drop per minute

Components location

INJECTION COMPONENTS 1 2 3 4 5 6 7 8 9 10 11 12 13

INJEC - 192

Specification Battery Injection ECU Fuel injector Electric fan relay Injection load relay Electric fan Fuel pump H.V. coil Lambda probe Water pump Water temperature sensor Speed sensor Diagnostics socket connector

Desc./Quantity 12V - 12 Ah

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Injection

Tachometer

PIN RELATIONSHIP PIN 4

PIN 5

Component Engine Speed sensor

Reference value 100 - 150 Ω a ~ 20°C

With the control unit disconnected, check that the sensor resistance between pins 4 and 5 is between 100 and 150 Ω at an engine temperature of approximately 20°. Disconnect the fuel pipe connector. Start up the engine and wait for it to stop. Try to start the engine and check that the voltage between pins 4 and 5 is ~ 2.8 V. With the control unit disconnected, check if there is continuity between pin 4 and the red cable of the speed sensor connector and between pin 5 and the brown cable of the speed sensor connector.

INJEC - 193

Injection

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With the control unit and the speed sensor disconnected, check that the red and brown cables (pins 4 and 5) are isolated from each other and insulated from the ground lead.

Specific tooling 020331Y Digital multimeter

INJEC - 194

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Injection

HT coil

INJEC - 195

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Injection

INJECTION LOADS Specification Battery Electronic control unit Fuse Ignition switch contacts Fuse Fuse Injection load relay Fuel pump Fuel injector H.V. coil Water pump

1 2 3 4 5 6 7 8 9 10 11

Desc./Quantity 12V - 12 Ah 20A 7.5 A 15A

PIN RELATIONSHIP PIN 1

PIN +Live supply

Component HV coil

Reference value 260 ± 26 mΩ

The ignition system is integrated with the injection and it is a high-efficiency inductive type ignition. The control unit manages two important parameters: - Ignition advance This is optimised according to the engine rpm, to the engine load, temperature and ambient pressure With idle engine, it is optimised to obtain the stabilisation of the speed at 1450 ± 50 R/1'. - Magnetisation time The coil magnetisation time is controlled by the control unit. The ignition power is increased during the engine start-up phase. The injection system recognises the 4-stroke cycle and therefore, ignition is only controlled during compression.

Specific tooling 020331Y Digital multimeter Check the efficiency of injection load 15 A fuse No. 5. Check that the live control unit power supply 7.5A fuse No. 10 works properly.

INJEC - 196

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Injection

After switching to «ON», check that there is voltage, for about 2 seconds, between the BlackGreen cable of the coil connector and the ground lead with the coil connector disconnected.

Check the resistance of the coil primary between pin 1 of the control unit connector and the BlackGreen cable of the injection load solenoid base, with the control unit disconnected and the solenoid disconnected.

Electric characteristic HV coil resistance primary value: 260 ± 26 mΩ Check the efficiency of the injection load solenoid as described in the Electrical system chapter.

Check the power supply line of the injection load solenoid energising coil: after switching to «ON», make sure there is battery voltage, for 2 seconds, between the Red-White cable and the Black-Purple cable of the solenoid base. If there is not, check the continuity of the Red-White cable between the fuse box and the solenoid base and of the BlackPurple cable between the pin 3 of the control unit and the solenoid base. N.B. CONTINUITY TESTS MUST BE CARRIED OUT WITH THE COMPONENTS DISCONNECTED. (RELAYS, CONTROL UNIT, FUSES ETC.).

INJEC - 197

Injection

Check the presence of fixed voltage between the grey/black cable of the solenoid base and earth. If there is none check the continuity of the grey/black cable between the fuse box (No. 5 15 A) and the solenoid base. N.B. CONTINUITY TESTS MUST BE CARRIED OUT WITH THE COMPONENTS DISCONNECTED. (RELAYS, CONTROL UNIT, FUSES ETC.).

INJEC - 198

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Injection

Coolant temperature sensor

TEMPERATURE SENSOR 1 2

Specification Water temperature sensor Electronic control unit

Desc./Quantity

INJEC - 199

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Injection

PIN RELATIONSHIP PIN 8

PIN 17

Component Engine temperature sensor

Reference value 3502 ± 237 Ω at 20°C; 357 ± 19 Ω at 80°C

With the connector on the control unit side disconnected and the coolant temperature sensor connector connected, check that the resistance values between pins 8 and 17 correspond to the engine temperature. With the connector on the control unit side disconnected and the coolant temperature sensor connector disconnected, check the insulation between the two Orange-Black and Sky blue-Green cables.

Electric characteristic Resistance value at 20° C 3502 ± 237 Ω Resistance value at 80° C 357 ± 19 Ω With the connector on the control unit side disconnected and the coolant temperature sensor connector disconnected, check if there is continuity between pin 17 of the control unit connector and the Sky blue-Green cable of the sensor, and between pin 8 of the control unit connector and the Orange-Black cable of the sensor.

Specific tooling 020331Y Digital multimeter

INJEC - 200

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Injection

Lambda probe

LAMBDA PROBE Specification Lambda probe Injection ECU

1 2

Desc./Quantity

PIN RELATIONSHIP PIN 35

PIN 37

Component Lambda probe

Reference value ~ 0V with throttle valve closed; ~ 1V with throttle valve fully opened

The Lambda probe or oxygen sensor is a sensor which provides indications concerning the oxygen content in the exhaust gas. The signal generated is not of the proportional type but of the ON/OFF type, i.e. there is oxygen or there is not. The sensor is positioned on the exhaust manifold before the catalytic converter in an area where the gas temperature is always high. The temperature at which the sensor works is at least 350°C at 600°C and it has a reaction time of just 50 milliseconds. The signal generated passes from a high value to a low value with a mixture with lambda =1. SIGNAL CONTROL Start the engine and warm up until the electric fan switches on. Use an analogue multimeter with a direct voltage scale measuring down to 2 V. Place the multimeter leads between pins 37 (-) and 35 (+) of the control unit.

INJEC - 201

Injection

With the engine running at idle speed, check that the voltage oscillates between 0V and 1V With the throttle valve completely open, the voltage is approx. 1V. During the closing phase, the voltage is approx. 0V. If the voltage remains constant, the sensor may be damaged. Remove the sensor and check that there are no oil or carbon deposits inside it..

INJEC - 202

MP3 125 ie

INDEX OF TOPICS

SUSPENSIONS

SUSP

Suspensions

This section is dedicated to operations that can be carried out on the suspensions.

Front Removing the front wheel - Remove the 5 fixing screws indicated in the picture.

Locking torques (N*m) Wheel fixing screw 20 to 25

Front wheel hub overhaul - Remove the ball bearing check Seeger ring indicated in the picture

Extract the ball bearing using the specific tool

Specific tooling 001467Y014 Calliper to extract ø 15-mm bearings 001467Y017 Bell for bearings, OD 39 mm

SUSP - 204

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Suspensions

- Remove the oil seal on the roller bearing side using a screwdriver.

- Remove the roller bearing using the specific tool

Specific tooling 020376Y Adaptor handle 020456Y Ø 24 mm adaptor 020363Y 20-mm guide

- Heat the roller bearing seat with a heat gun - Use the specific tool to introduce and push the bearing until it stops, with the shielded side facing out - Refit the ball bearing check Seeger ring

Specific tooling 020151Y Air heater 020376Y Adaptor handle 020359Y 42x47-mm Adaptor 020412Y 15-mm guide - Use the specific tool to fit and push the roller casing until it stops - Refit the oil seal on the roller bearing side - Lubricate the area between the roller bearing and the ball bearing

Specific tooling 020038Y Punch

Recommended products AGIP GREASE MU3 Grease for odometer transmission gear case

SUSP - 205

Suspensions

MP3 125 ie

Soap-based lithium grease with NLGI 3; ISO-LXBCHA3, DIN K3K-20

Handlebar Removal •

Remove the two handlebar covers as explained in the Bodywork Chapter.

•

Remove the handlebar wiring fixing clips and disconnect the electric connectors from the brake levers.

•

Unscrew the fittings, then remove the front and rear brake pump piping.

•

Remove the flexible transmission of the accelerator and remove the throttle.

•

Loosen the clamp fixing the handlebar to the steering tube and pulling upwards, remove the handlebar, then remove the lower plastic cover.

N.B. IF THE HANDLEBAR IS BEING REMOVED TO REMOVE THE STEERING, IT IS ONLY NECESSARY TO TILT THE HANDLEBAR FORWARD ONTO THE FRONT PART OF THE VEHICLE WITHOUT REMOVING THE PARTS FITTED SO AS TO AVOID DAMAGING THE SHAFTS.

Refitting Carry out the above operations by working in the reverse order from that used for removal.

Locking torques (N*m) Handlebar fixing screw 50 ÷ 55

The tilt mechanism

SUSP - 206

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Suspensions

Hydraulic system layout Roll lock system purge - Remove the legshield upper cover. - Unscrew the cap and check that there is always oil inside the reservoir along the whole process.

- Using a specific tool purge the calliper. - Connect the pipe to the fitting and keep purging the system until air bubble free brake fluid flows out. CAUTION CARRY OUT THE FOLLOWING OPERATIONS ON BOTH CALLIPERS

Specific tooling 020329Y Mity-Vac vacuum-operated pump - Restore the correct level inside the chamber adding oil of the recommended type.

Recommended products AGIP BRAKE 4 Brake fluid FMVSS DOT 4 Synthetic fluid

Steering tubes Remove the brake calliper pipe retainers and the hydraulic pipe fitting from the brake calliper making sure there is a container to collect the brake fluid.

SUSP - 207

Suspensions

Disconnect the tone wheel connector indicated in the picture.

Remove the hydraulic pipe fitting from the sliding locking device, making sure again that the liquid drained is collected.

Remove the upper fittings, on the parallelogram, of the brake hydraulic pipes and the suspension lock indicated in the picture.

Remove the hydraulic pipe fitting fixing nuts indicated in the figure from the support bracket.

SUSP - 208

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Suspensions

Remove the suspension roll lock device pipes from the headstock.

Remove first the flexible part of the calliper from the steering tube as shown in the picture, and then remove the rigid part.

Remove the tone wheel wiring by disconnecting the connector on the fuel tank after removing the chassis central cover. After that, remove the retainers indicated in the figure.

SUSP - 209

Suspensions

Remove the constant-velocity universal joint from the steering bar by undoing the nut indicated in the picture.

Use a specific tool to remove the upper tightening ring nut of the steering tube.

Specific tooling 020055Y Wrench for steering tube ring nut

Remove the hydraulic pipe support bracket.

SUSP - 210

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Suspensions

Remove the steering tube lower ring nut and the protection cap indicated in the picture.

Now the steering tube can be removed.

Check that the roller tapered bearing does not show signs of abnormal wear. If it does, replace it.

SUSP - 211

Suspensions

THE OPERATIONS DESCRIBED BELOW CAN ALSO BE CARRIED OUT EVEN WHEN THE SUSPENSION IS FITTED Remove the lower retainer of the sliding stem shown in the picture.

Remove the sliding stem locking device retainers indicated in the picture.

Check that the sliding stem locking device does not show signs of abnormal wear.

SUSP - 212

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Suspensions

For refitting, follow the operations for removal but in reverse order, observing the prescribed torque and greasing the bearings and their seats.

STEERING TUBES

Name Side headstock upper ring nut Side headstock lower ring nut Screw fixing sliding stem to shock absorber Clamp for sliding stem locking device Fixing nuts for constant-velocity universal joints

Torque in Nm 20 - 24 12 ÷ 15 45 to 50 6.5 - 10.5 18 - 20

Parallelogram device Remove the steering tubes. To facilitate removal operations of the brake disc sector, loosen the 3 fixing screws in the hydraulic electro-actuator indicated in the picture.

Remove the hydraulic pipe retainers from the parallelogram.

SUSP - 213

Suspensions

Remove the 4 screws fixing the tilt brake disc sector indicated in the picture.

Remove the retainers indicated in picture of the half-arms joint flange.

To facilitate the operations indicated below, remove the suspension locking electronic control unit indicated in the picture.

SUSP - 214

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Suspensions

Remove the arm coupling retainers from the parallelogram by loosening the retainers indicated. For easy refitting operations, remember to take note of the positions of the components.

Separate the half-arms by hitting slightly with a wooden mallet where possible alternately to the left and right side of the parallelogram.

Remove the headstocks.

SUSP - 215

Suspensions

Carry out a visual check of the upper and lower bearings on the headstocks and their seats. Replace them in case of signs of abnormal wear.

SUSP - 216

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Suspensions

Check the ball bearings on the parallelogram arms. Replace them in case of signs of abnormal wear.

Check the inside tracks of the parallelogram bearings on the chassis.

For refitting, follow the operations for removal but in reverse order, lubricating the reference dowels on the parallelogram half-arms and observing the prescribed torque.

PARALLELOGRAM DEVICE Name Arm coupling screws Screws fixing arms to side headstocks Screws fixing arms to central headstock Screws fixing the half-arm coupling flange Screws fixing roll lock disc section

Torque in Nm 45 to 50 45 to 50 45 to 50 20 to 25 20 to 25

SUSP - 217

Suspensions

Geared motor and Suspension locking system Before removing the gear motor: Disable the suspension lock. Remove the legshield. With the set nut indicated in the picture, remove the tensioning cable of the suspension locking mechanical calliper.

Remove the electrical connection of the gear motor position potentiometer.

Remove the electrical connection of the geared motor electric motor.

Disconnect the hydraulic pipes between the pump and the sliding stem locking clamps. Empty the system and use a container to collect the brake fluid. CAUTION ELIMINATE ANY REMAINING BRAKE FLUID SPILLS.

WARNING: BRAKE FLUID IS HIGHLY POISONOUS. DO NOT INGEST OR SWALLOW. IF ACCIDENTALLY SWALLOWED, DRINK LARGE QUANTITIES OF MILK OR WATER AND SEEK MEDICAL ADVICE IMMEDIATELY. BRAKE FLUID DESTROYS SKIN AND OCULAR TISSUE. IF YOU ACCIDENTALLY SPILL BRAKE FLUID ON YOURSELF, TAKE OFF YOUR CLOTHES, WASH WITH HOT WATER AND SOAP AND SEEK MEDICAL ADVICE IMMEDIATELY.

SUSP - 218

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Suspensions

IF BRAKE FLUID GETS ACCIDENTALLY IN CONTACT WITH YOUR EYES, RINSE WITH ABUNDANT FRESH WATER AND SEEK MEDICAL ADVICE IMMEDIATELY. KEEP BRAKE FLUID OUT OF THE REACH OF CHILDREN.

Remove the 3 fixing screws indicated and remove the whole gear motor.

Use a screwdriver to remove the plastic access cover to the pump joint/gear motor Undo the pump joint screw. Undo the two gear motor pump locking screws.

SUSP - 219

Suspensions

Undo the two potentiometer screws. Upon refitting, plug the potentiometer in D-type connector, afterwards place it with its electric connection directed to the opposite side of the pump.

Remove the nut indicated in the figure, if necessary lock the lever with a vice making sure not to spoil the surface. In case of difficulties when removing the lever, use the specific tool. Remove the tongue and then, the moulded washer.

Specific tooling 020234y extractor Remove the three fixing screws of the electric motor. It is important to mark the direction of the electric motor position in order to refit it correctly.

SUSP - 220

MP3 125 ie

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Suspensions

Remove the four screws indicated in the figure, remove the flexible transmission supporting bracket, separate the two crankcase halves, if necessary, use a rubber mallet to hit the flexible transmission lever in order to separate the two crankcases.

Remove the retaining Seeger ring of the bearing of the flexible transmission lever control shaft bearing. Remove the bearing with the specific tool.

Specific tooling 020376Y Adaptor handle 020441Y 26 x 28 mm adaptor 020362Y 12 mm guide

Extract the electric motor bearing with the specific tool.

Specific tooling 020376Y Adaptor handle 020375Y 28 x 30 mm adaptor 020363Y 20-mm guide

SUSP - 221

Suspensions

Hold the crankcase in a perfectly horizontal position, heat it with a specific heat gun at about 120 ° C, use the specific tool to fit the bearing of the flexible transmission lever control shaft. Hit slightly with a mallet if necessary. Refit the bearing check Seeger ring.

Specific tooling 020151Y Air heater 020376Y Adaptor handle 020362Y 12 mm guide 020357Y 32x35-mm Adaptor Hold the crankcase in a perfectly horizontal position, heat it with a specific heat gun at about 120 ° C, use the specific tool to fit the bearing of the electric motor. Hit slightly with a mallet if necessary.

Specific tooling 020363Y 20-mm guide 020358Y 37x40-mm Adaptor 020151Y Air heater 020376Y Adaptor handle Remove the spring/toothed sector unit from its fitting, slightly hit with a mallet if necessary to release the unit.

SUSP - 222

MP3 125 ie

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Suspensions

Extract the bearing of the spring/toothed sector unit with the specific tool.

Specific tooling 001467Y002 Driver for OD 73 mm bearing

Extract the bearing of the electric motor with the specific tool.

Hold the crankcase in a perfectly horizontal position, heat it with a specific heat gun at about 120 ° C, use the specific tool to fit the bearing of the spring/toothed sector unit. Hit slightly with a mallet if necessary.

Specific tooling 020360Y 52x55-mm Adaptor 020151Y Air heater 020376Y Adaptor handle Hold the crankcase in a perfectly horizontal position, heat it with a specific heat gun at about 120 ° C, use the specific tool to fit the bearing of the electric motor. Hit slightly with a mallet if necessary.

Specific tooling 020363Y 20-mm guide 020151Y Air heater 020376Y Adaptor handle 020477Y 37 mm adaptor

SUSP - 223

Suspensions

Refit the spring/toothed sector unit, hold the crankcase in a perfectly horizontal and stable position, place the spring/toothed sector unit keeping it perfectly perpendicular to the bearing already fitted on the crankcase; if necessary, slightly hit the unit shaft end with a mallet and protect the thread by screwing in a nut.

Fit the pinion and align the reference on the pinion teeth with the reference indicated on the second slot of the toothed sector. Grease the pinion and the toothed sector with specific grease. Refit the toothed sector spacer.

Recommended products MONTBLANC MOLYBDENUM GREASE MONTBLANC MOLYBDENUM GREASE Grease with molybdenum disulphide

Lubricate the interference areas, match the crankcase halves with slight hits of a mallet to get them into contact. Place the flexible transmission supporting bracket, refit the four screws, screw them to the prescribed torque.

Locking torques (N*m) Gear motor crankcase halves coupling screws 11 to 13

SUSP - 224

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Suspensions

Refit the electric motor; check the position is correct by means of the reference indicated during removal. The motor should be so positioned that it does not protrude from the reduction unit mould, see figure. Tighten the screws to the prescribed torque.

Locking torques (N*m) Electric motor coupling screws 11 to 13 Place the moulded washer of the flexible transmission control lever shaft and the tongue. Refit the flexible transmission control lever as shown in the figure.

Refit the potentiometer (not forcing in the D-type connector ensures a sole position) with the connector directed to the opposite side of the hydraulic pump.

Refit the hydraulic pump on the gear motor body and tighten the screws to the prescribed torque. Fit but not tighten the pump stem coupling screw and refit the plastic protection cap. The synchronisation procedure should be complete when the installation is finished.

Locking torques (N*m) Gear motor hydraulic pump tightening screws 11 to 13

SUSP - 225

Suspensions

Remove the two bracket screws after releasing the spring and freeing the flexible transmission adjustment. CAUTION: A FIRST PRODUCTION BATCH WILL BE EQUIPPED WITH DOUBLE COAXIAL SPRING. It is very important to remove the flexible transmission from its fitting only for replacement. When refitting, tighten the two bracket screws and the flexible transmission lever nut to the prescribed torque.

Locking torques (N*m) Bracket tightening screws 8 to 12

Undo the Allen screw and remove the switch. Upon refitting, place the switch with the button oriented to the stop indicated on the calliper lever, observing the reference indicated on the switch supporting bracket. After refitting, check in detail that the switch is regularly activated by the stop on the lever.

SUSP - 226

MP3 125 ie

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Suspensions

Undo the two pad pin screws; remove the pads with the spring. Upon refitting, tighten the two screws to the prescribed torque and use threadlock. Upon refitting, adjust the cable properly so that the switch is pushed when the system is unlocked.

SUSP - 227

MP3 125 ie

Suspensions

Select the SYSTEM RESET option from the main menu

Turn the ignition switch to ON Select the LOWER STOP SEARCH option from the SYSTEM RESET menu WAIT PROCEDURE IN PROGRESS

SUSP - 228

MP3 125 ie

Suspensions

The palmtop indicates the outcome of the stop search operation: POSSIBLE LIMIT STOP VALUES. TO EXIT, PRESS A KEY AND TURN OFF AND ON. SELECT PARAMETERS TO ADJUST AT 12°. Check the gear motor if the palmtop does not indicate this.

Select the PARAMETERS option from the main menu

The palmtop displays the option: RELATIVE POTENTIOMETER ANGLE This function is active coming from the LOWER STOP SEARCH procedure. NOTE: a slight oscillation of the angle value between 0.00° and 0.50° is considered normal

Remove the protection cap of the gear motor set screw Use a plain slot screwdriver to turn the set screw anticlockwise until replicating the 12° condition on the palmtop RELATIVE POTENTIOMETER ANGLE 12° (a slight value oscillation is considered normal) Refit the protection cap

SUSP - 229

Suspensions

Remove the protection cap, align the pump control and lock the screw to the prescribed torque

Locking torques (N*m) Clamp fixing pump bolt to anti-tilting device 11 to 13

Select the SYSTEM RESET option from the MAIN menu

SUSP - 230

MP3 125 ie

MP3 125 ie

Suspensions

Select the POTENTIOMETER RESET option from the SYSTEM RESET menu and press OK. WAIT.... PROCEDURE IN PROGRESS

The palmtop displays the words: CHECK THAT THE CONTROL IS SET AT 12° FROM THE LOWER STOP. PRESS OK TO CONTINUE Press OK The palmtop displays the words: POSSIBLE LIMIT STOP VALUES. PRESS A KEY AND SHIFT OFF AND ON If this is not successful, the roll lock mechanism remains locked for safety.

Adjust the flexible transmission so that a small clearance is left to guarantee switch activation on the roll lock calliper

Electrical devices test PRINCIPLE DIAGRAM FOR TILT LOCKING ELECTRICAL SYSTEM

SUSP - 231

Suspensions

1. GEARED MOTOR 2. ROLL LOCK CALLIPER SWITCH 3. ROLL UNLOCK-LOCK CONTROL SWITCH 4. POTENTIOMETER 5. RIDER DETECTION SENSOR 6. LEFT SPEED SENSOR 7. RIGHT SPEED SENSOR 8. DIAGNOSTIC TESTER SERIAL LINE 9. ENGINE CONTROL UNIT 10.+ DIRECT BATTERY 11.+ LIVE BATTERY 12.LOW BEAM LIGHT 13.FUSE No. 3, 20A 14.LOW BEAM LIGHT SOLENOID 15.PRESSURE SWITCH 16.HORN SOLENOID 17.INSTRUMENT PANEL 18.ROLL LOCK SYSTEM CONTROL UNIT TONE WHEEL SENSOR

SUSP - 232

MP3 125 ie

MP3 125 ie

Suspensions

1: Right tone wheel 2: Left tone wheel With the interface wiring disconnected from the parking electrical control unit and connected to the system, check that the sensor resistance between pins 23 - 17 and 24 - 17 is between 774 and 946 Ohm at approximately 20°

With interface wiring disconnected from the control unit, check the continuity between pin 23 and the brown cable of the LEFT wheel speed sensor connector; between pin 17 and the red cables of the LEFT wheel speed sensor and brown cable of the RIGHT sensor; between pin 24 and the red cable of the RIGHT wheel speed sensor

SUSP - 233

Suspensions

MP3 125 ie

In case of failures, check the continuity between pin 23 and the connector green cable on the fuel tank after removing the chassis central cover; between pin 17 and the yellow cables on both connectors; between pin 24 and the red cable on the connector.

With the interface wiring disconnected from the control unit and the connectors disconnected from wheel turning sensors, check that pin 23 - 17 and 24 - 17 are insulated from each other and from ground.

SUSP - 234

MP3 125 ie

Suspensions

With a feeler gauge, check that the air gap between the screw head and the sensor is between 0.35 and 1 mm

RIDER PRESENCE SENSOR

SUSP - 235

Suspensions

1: RIDER DETECTION SENSOR With the interface wiring disconnected from the control unit and connected to the system, check the following conditions: pin 17 - 36: resistance 15 - 18 kOhm when the rider is not seated on the saddle. pin 17 - 36: resistance of about 3 kOhm when the rider is seated on the saddle

SUSP - 236

MP3 125 ie

MP3 125 ie

Suspensions

Check the continuity between the interface wiring pin 17 and the yellow cable of the rider presence connector. Check the continuity between the interface wiring pin 36 and violet cable of the rider presence connector.

TILT LOCKING CALLIPER SENSOR

1: ROLL LOCK CALLIPER SENSOR

SUSP - 237

Suspensions

The roll lock calliper sensor is a normally opened switch. Check its correct operation with a multimeter.

With the interface wiring disconnected from the control unit, check the continuity between pin 34 and the brown cable of the roll lock gripper sensor connector on the system side. Check the continuity of the connector black cable and a ground point on the chassis

Also check that the flexible transmission control lever activates the limit stop switch properly.

POTENTIOMETER

SUSP - 238

MP3 125 ie

MP3 125 ie

Suspensions

1: POTENTIOMETER With the interface wiring connected to the control unit, secure the vehicle on its centre stand and switch to "ON". Select the reading scale on 20 V. Insert the multimeter probes on pins 17 (black) and 25 (red). Check that the voltage in the activated locking condition is 4V and 1V in the locking rest condition.

SUSP - 239

Suspensions

With the interface wiring disconnected from the control unit, check the continuity between pin 17 and the yellow cable of the potentiometer connector, between pin 25 and the green-blue cable, between pin 11 and the orange-blue cable. Also check that these lines are insulated from each other and ground.

TILT LOCKING-UNLOCKING SWITCH

SUSP - 240

MP3 125 ie

MP3 125 ie

Suspensions

0: REST POSITION 1: LOCKING POSITION 2: UNLOCKING POSITION 3: ROLL LOCK-UNLOCK SWITCH With the interface wiring disconnected from the control unit, check the continuity of the electrical lines between the interface wiring and the roll lockunlock switch: Pin 26 and green - grey cable Pin 35 and violet - black cable Pin 33 and yellow - blue cable Also check that the above indicated electrical lines are insulated from the ground.

SUSP - 241

Suspensions

Check the continuity between the black cable on the connector and a ground point on the chassis.

With a multimeter, check the operation of the roll lock-unlock switch referring to the diagram indicated in the figure. 1. GROUND 2. LOCK 3. REST 4. UNLOCK

GEARED MOTOR

SUSP - 242

MP3 125 ie

MP3 125 ie

Suspensions

1: GEAR MOTOR With the interface wiring disconnected from the control unit, check the continuity between pin 28 and the yellow cable, between pin 38 and the blue cable on the gear motor connector

SUSP - 243

Suspensions

With the interface wiring disconnected from the control unit, check the continuity of the gear motor winding placing the multimeter probes on pins 28 and 38 as indicated in the figure

PRESSURE SWITCH

1: PRESSURE SWITCH 2: HORN SOLENOID 3: FUSE No. 11, 7.5A

SUSP - 244

MP3 125 ie

MP3 125 ie

Suspensions

Check 7.5 A fuse No. 11 for efficiency. With interface wiring disconnected from the control unit, check the continuity of the blue - black cable between pressure sensor connector and the horn solenoid base as indicated in the picture. Check the continuity between pin 27 and the solenoid base white cable.

Check the continuity of the yellow - red cable between the pressure switch connector and the fusebox and between the solenoid base and the fusebox. With a multimeter, also check the pressure switch operation as well as the continuity at rest as this is normally closed switch.

SUSP - 245

Suspensions

Wheel alignment Tool fitting

How to use the tools •

Check that tyre pressure is correct.

•

Park the vehicle on level, smooth and even ground.

•

Park the vehicle on its centre stand.

•

Make sure that the parking system is disengaged.

•

Lift the front wheels as shown in the picture

•

Check that the wheel rims rotate evenly and whether there is abnormal clearance in bearings and suspension.

•

Make sure that the steering control shows no signs of abnormal clearance in joints and bearings. Otherwise, correct this and then adjust them.

Characteristic Front tyre pressure (rider) Front tyre pressure (rider): 1.6 bar Rear tyre pressure (rider) Rear tyre pressure (rider): 2 bar

SUSP - 246

MP3 125 ie

MP3 125 ie

•

Suspensions

Get the vehicle off the stand, back on the ground.

•

Remove the right lower coupling plate of the half-arm by undoing the screws indicated in the picture.

•

Remove the right upper screw and the left bottom screw of the parallelogram unit.

SUSP - 247

Suspensions

•

Fit the bracket locking the parallelogram in the holes of the previously removed screws; use the screws supplied with the tool and be careful to correctly centre the spacer in the bearing.

•

Remove the nut fixing the steering control arm and keep the original washer in position.

•

Fit the steering guiding bracket in a straight riding position, fix one end to the attachment of the half-arm coupling flange and the other end to the screw fixing the steering control arm.

•

Place the frame so that the sliders come into contact with the rim maximum diameter but without interfering with the tyre. If required, reposition the frame by operating the 3 adjustable support feet.

SUSP - 248

MP3 125 ie

MP3 125 ie

•

Fit the frame locking bracket

•

Make sure the frame is adequately

Suspensions

centred by checking with a gauge that the lugs along the vertical axis show the standard protrusion.

•

Check that the pointers of both tyres are correctly aligned, as shown in the picture. Maximum misalignment allowed: 4 notches.

•

Use tool 020647Y028 for LT version with extended track.

Specific tooling 020646Y Parallelogram and steering positioning tool 020647Y Toe-in checking tool 020647Y028 MP3 LT Toe-in tool (tricycle)

SUSP - 249

Suspensions

Rear Removing the rear wheel Remove the full silencer assembly. - Remove the screw fixing the right-hand shock absorber to the bracket - Remove the two screws supporting the brake calliper on the bracket

- Remove the cotter pin, the cap, the wheel axle fixing nut and the outer one of the two spacers.

SUSP - 250

MP3 125 ie

MP3 125 ie

Suspensions

- Remove the mud guard clamping screw - Remove the two screws fixing the bracket to the engine

- Slide off the wheel axle bracket, using the heat gun if necessary.

Refitting the rear wheel To fit, follow the removal steps but in the reverse sequence, being careful to fit the spacers on the wheel axle as shown in the picture.

Locking torques (N*m) Silencer arm clamping screws 27 - 30 Rear wheel axle nut 104 to 126 Shock absorber-crankcase attachment bracket 20 to 25 Lower shock absorber clamping screw 33 - 41 Nm Rear brake calliper fixing screws 25 - 30 Nm

Swing-arm Removal - Place the vehicle on its centre stand; - Remove the swinging arm/engine fitting shown in the picture - Move the engine back

SUSP - 251

Suspensions

- Remove the spring anchoring the swinging arm to the chassis as shown in the picture

- Remove the two screws fixing the buffer support bracket to the chassis

- Undo the nut on the LHS shown in the figure and remove the corresponding bolt from the opposite side. - Remove the swinging arm.

- Check the entire swinging arm assembly. - Check all the centring bushing components and silent block rubber buffers. - Replace the work components that cause excessive clearance on the rear suspension.

SUSP - 252

MP3 125 ie

MP3 125 ie

Suspensions

Overhaul - Check there is no sticking in the movement of the connection of the swinging arm on the engine side to the swinging arm on the chassis side. - Check the axial clearance between the two swinging arms using a feeler gauge

Characteristic Standard clearance 0.40 - 0.60 mm Allowable limit after use: 1.5 mm - In order to check the clearance of the swinging arm on the frame side, prepare a retainer using the fixing pin of the swinging arm on the frame and two rings from the special tool 020229Y. Alternatively, use two washers with 12-mm inside diameter for pins, minimum 30-mm outside diameter and 4-mm thick at least.

- Check there is no sticking in the rotation. - Check the axial clearance of the swinging arm on the chassis side

Characteristic Standard clearance 0.40 - 0.60 mm Allowable limit after use: 1.5 mm - Separate the swinging arm on the engine side from the vehicle side arm. - Remove the plastic bushings and the internal spacer shown in the picture.

SUSP - 253

Suspensions

- Using a suitable pin remove the roller casings as shown in the pictures

- Using an appropriate tool plant new roller casings, being careful to position the bearings with the seal rings facing outwards

Specific tooling 020244Y 15-mm diameter punch 020115Y Ø 18 punch

Characteristic Length of the swinging arm tube on the engine side: L 175.3 + 0.3 0 Length of the internal swinging arm spacer on the engine side: L 183 + 0.3 0 Engine side swinging arm plastic bushing shim: 3.5 ± 0.05 mm Chassis side swinging arm plastic bushing shim: 3.5 ± 0.05 mm Length of the internal swinging arm spacer on the frame side: 290 ± 0.1 mm Length of the swinging arm tube on the chassis side: 283 ± 0.1 mm

SUSP - 254

MP3 125 ie

MP3 125 ie

Suspensions

- Lubricate roller casings and the plastic bushings with grease - Insert the spacers - Assemble the two arms with the relative bolt in the position shown in the picture - Adjust the bolt as shown in the picture - Position the chassis side swinging arm with the most protruding part pointing towards the silent block side as shown in the picture

Recommended products AGIP GREASE PV2 Grease for steering bearings, pin seats and swinging arm Soap-based lithium and zinc oxide grease containing NLGI 2; ISO-L-XBCIB2 of the swinging arm

- Make sure the silent bloc is not broken. If it is, replace the coupling. - Remove the Seeger ring shown in the picture

- Remove the full silent bloc bracket - Undo the silent bloc ring shown in the picture

SUSP - 255

Suspensions

- Hold the full silent bloc bracket in the clamp - Using the appropriate tool, remove the silent bloc from the bracket from the side corresponding to the inside of the vehicle. This is to guarantee the tool is centred properly on the support

- Install a new silent bloc, making sure it aligns properly with the reference tooth. - Fit the silent blocs, making sure the chamfered part of the silent bloc matches the chamfered part of the bracket

- Using the appropriate tool, fit the silent bloc as shown in the picture

SUSP - 256

MP3 125 ie

MP3 125 ie

Suspensions

Refitting For correct installation of the swinging arm on the vehicle, proceed as follows: 1. Position the silent block supporting clamp with part 3 inserted, and slightly tighten part 1 2. Position the swinging arm, inserting part 2 3. Tighten part 3 to the prescribed torque 4. Screw on and tighten part 4 to the prescribed torque 5. Screw on and tighten part 5 to the prescribed torque 6. Tighten part 1 to the prescribed torque Insert the swinging arm - engine bolt and tighten to the prescribed torque

SUSP - 257

MP3 125 ie

Suspensions

SWINGING ARM FITTING

Name Part 1 Part 3 Part 4 Part 5 Engine-swinging arm bolt

Shock absorbers Removal Proceed as follows: - place the vehicle on its centre stand; - lift the engine a little with a jack so as to free the two shock absorbers; - remove the silencer - undo the shock absorber spring assembly clamping screw from the support fixed to the engine on the one side and from that fixed to the silencer on the other; - unscrew the two upper nuts (one on each side) fixing the shock absorber spring assembly to the frame and remove the shock absorbers.

Refitting Carry out the previous operations but in reverse order.

Locking torques (N*m) SUSP - 258

Torque in Nm 64 - 72 5-7 90 - 110 64 - 72 Nm 64 - 72

MP3 125 ie

Suspensions

Shock absorber lower clamping 33 to 41 Shock absorber upper clamp 33 to 41

Centre-stand REMOVAL - Use a jack to support the vehicle properly. - Remove the two return springs from the centre stand. - Undo the nut shown in the figure. - Remove the pin from the right side. - Remove the centre stand. FITTING - On refitting tighten the nut to the specified torque.

Locking torques (N*m) Centre stand bolt 31 - 39

SUSP - 259

INDEX OF TOPICS

BRAKING SYSTEM

BRAK SYS

MP3 125 ie

Braking system

This section è is dedicated to the description of the braking system components.

Rear brake calliper Removal - Remove the silencer. - Remove the two rear brake calliper devices fastening them to the support as shown in the picture. N.B. IF IT IS NECESSARY TO REPLACE OR SERVICE THE BRAKE CALLIPER, BEFORE REMOVING THE FITTINGS FIXING THE CALLIPER TO THE SUPPORT BRACKET, FIRST LOOSEN THE OIL HOSE FITTING AFTER HAVING EMPTIED THE SYSTEM OF THE CIRCUIT BEING EXAMINED.

Front brake calliper Removal Place a container under the calliper, unscrew the tube-calliper joint and empty the braking system. For easy draining of the braking system fluid, open the pump reservoir cap.

Loosen the two screws indicated in the figure and remove the calliper from the support. When refitting, tighten the two calliper retainers to the prescribed torque.

Locking torques (N*m) Screw tightening calliper to support 24 to 27

Front brake disc

BRAK SYS - 261

Braking system

Removal Remove the cotter pin. Use new split pins when refitting.

Undo the wheel hub nut. - Upon refitting, secure to the specified torque.

Locking torques (N*m) Wheel axle nut 74 - 88

Remove the Seeger ring, after that, remove the hub with the help of a rubber mallet slightly hitting on the brake disc side, turning the wheel hub at the same time.

Loosen the 6 screws indicated in the figure and remove the brake disc from the wheel hub. - Upon refitting, secure to the specified torque.

Recommended products Loctite 242 product description Apply LOCTITE medium type 242 threadlock

BRAK SYS - 262

MP3 125 ie

MP3 125 ie

Braking system

Removal Rest the vehicle on its centre stand and use the corresponding jack to lift the two front wheels; unscrew the five Allen screws indicated in the figure

Remove the pad upper closing cap.

Remove the pad pin lock with a screwdriver, paying attention not to spoil the calliper surface treatment. Use a corresponding measuring punch to extract the pad pin, if necessary move the brake pipes manually to release the pin. Then, remove the spring and the pads. Fit a new pad kit following the procedure but in reverse order.

Locking torques (N*m) Wheel fixing screw 20 to 25

Rear brake pads Fill Rear - combined For the procedure in question see «Highlighted operations» section.

BRAK SYS - 263

Braking system

Front For the procedure in question see «Highlighted operations» section.

Brake pipes Front brake pipes removal Remove legshield. Remove front wheel and mudguard. Disconnect the brake pipes from the calliper and drain the brake fluid. Then, remove the plastic and metallic straps. Unscrew the brake pump pipes as indicated in the figure.

Front brake pipes removal Unscrew the braking splitter screw. Disconnect the brake pipes removing the two metallic straps indicated in the figure. Remove the brake oil tube fitting from the rigid pipe inside the front suspension arm and loosen the hydraulic joint fixing nut of the suspension locking to release the brake pipes.

BRAK SYS - 264

MP3 125 ie

MP3 125 ie

Braking system

Parking brake Remove the silencer loosening the 3 screws and the strap on the exhaust tube indicated in the picture. When refitting, place the parking brake flexible transmission retaining strap correctly.

Loosen the transmission set screw and release the cable from the calliper.

Remove the two fixing screws of the mechanic calliper and remove the calliper. To check calliper components, refer to the chapter on the roll lock calliper. When refitting, tighten to the specified torque.

Locking torques (N*m) Screw tightening calliper to support 20 to 25

BRAK SYS - 265

Braking system

After removing the leg shield back plate, remove the engaging cable for the safety mechanism removing it from its fitting. Remove the 4 screws shown in the figure. When refitting, pay attention to insert the metallic cable peg in the fitting marked «A» as indicated in the enlarged picture.

Remove the electric connection from the engaged parking brake warning light switch.

Remove the parking brake cable from the lever by operating the set screw indicated in the picture.

BRAK SYS - 266

MP3 125 ie

INDEX OF TOPICS

COOLING SYSTEM

COOL SYS

MP3 125 ie

Cooling system

Circuit diagram

Key A = entering the engine (cold) B = electric pump C = thermostat with by-pass D = leaving the engine (hot) E = radiator F = expansion tank This is a forced circulation cooling system, with continuous purging and air pressurisation. Circulation takes place by means of an electric centrifugal pump which sends coolant to the thermal group. The thermostat is connected at the head output. The radiator output is directly connected to the pump. The expansion tank is connected to the radiator: the radiator hot-box is connected to the upper side of the expansion tank (in air); the radiator cold-box is connected to the lower side of the expansion tank (in fluid).

Characteristic Cooling system capacity: ~2l

TECHNICAL SPECIFICATIONS Specification Cooling system capacity:

COOL SYS - 268

Desc./Quantity ~2l

MP3 125 ie

Cooling system

Specification Recommended fluid Sealing pressure

Desc./Quantity AGIP PERMANENT SPECIAL (ready for use) Cap calibrated at 0.9 bar

THERMOSTAT Specification Type Starts opening at

Desc./Quantity Wax-type, with deviator 85 ± 2°C

ELECTRIC VENTILATION Specification Electric ventilation starts at Electric ventilation stops at

Desc./Quantity 100° C 90° C

WATER PUMP Specification Type Control

Desc./Quantity Centrifugal Electric, commanded by the control unit

RADIATOR Specification Type

Desc./Quantity Aluminium, with horizontal circulation

EXPANSION TANK Specification Calibration

Desc./Quantity Automatic bleeding, in parallel with the radiator

System bleed - Start up the engine until the operating temperature is reached. - Remove the rubber hood over the bleed valve - Obtain a rubber tube that is of the right length to connect the valve to the expansion tank - Place one end of the pipe on the bleed valve and the other in the expansion tank - Loosen the screw by two turns until the communication hole is revealed with the head as shown in the picture - Wait until only coolant comes out of the rubber pipe so as to eliminate any air bubbles inside the circuit. - Tighten the bleed valve respecting the maximum torque. - Bring the coolant up to the correct level inside the expansion tank

Locking torques (N*m) COOL SYS - 269

Cooling system

MP3 125 ie

Bleed screw 3

Water pump

KEY 1. Battery 2. Fuse No. 2 3. Ignition key contacts 4. Fuse No. 10 5. Fuse No. 5 6. Injection load solenoid 7. Water pump 8. Injection ECU WARNING

ALL CONTINUITY TESTS MUST BE CARRIED OUT WITH THE CORRESPONDING CONNECTORS DISCONNECTED. WATER PUMP CIRCUIT CHECK 1) Check that fuses No. 2, 5 and 10 operate properly. 2) Check the contacts of the ignition key and the injection load solenoid as described in the "Electrical system" chapter. 3) Check whether there is voltage: - between the Grey-Black cable of the base of the injection load solenoid and the ground lead. - between the Red-White cable of the base of the injection load solenoid and the ground lead, with the ignition key set to «ON». COOL SYS - 270

MP3 125 ie

Cooling system

4) Check that the cable harnesses are in good condition whenever no voltage is detected. 5) Check whether there is voltage in: - the Black-Purple cable between the base of the injection load solenoid and the control unit (pin 3). - the Black-Green cable between the base of the injection load solenoid and the water pump connector. - the Sky blue cable between the water pump connector and the control unit (pin 19). 6) Check the pump ground connection (Black cable).

COOL SYS - 271

INDEX OF TOPICS

CHASSIS

CHAS

MP3 125 ie

Chassis

This section è is dedicated to the operations that can be carried out on the vehicle's bodywork.

Seat Lift the saddle and disconnect the rider detection sensor. Remove the three fixing screws.

Front handlebar cover Remove the upper cap by operating on the Allen screw indicated in the figure.

Remove the two brake pump caps.

CHAS - 273

Chassis

Remove the two screws under the brake pump caps previously removed.

Unscrew the two pairs of screws in the lower part of the half-handlebar.

After removing the front part of the handlebar cover, access the two screws fixing the rear part to the handlebar, as indicated in the picture.

Headlight assy. Remove the radiator cover. Remove the two wheelhouses with the turn indicator. Unscrew the two screws fixing the wheelhouse to the shield. Disconnect the cable grommet; after that, turn the wheelhouse anticlockwise (inwards) to release it from the shield supports.

CHAS - 274

MP3 125 ie

MP3 125 ie

Chassis

To remove the shield central finishing, remove the PIAGGIO clip-on badge paying attention not to spoil the paint, unscrew the screw underneath and remove the finish carefully.

Remove the four screws "A" and disconnect the wiring.

See also Radiator cover

Frame central cover Remove the three screws on the right and the left side. Open the refuelling compartment and remove the tank cap so as to remove the central cover. Disconnect the cable, refuelling compartment opening.

See also Seat Knee-guard Handles and top side fairings

CHAS - 275

Chassis

Legshield Remove the headlight assembly. Remove the spoiler. Remove the two front screws and the two screws under the wheelhouse.

Remove the four screws on the leg shield back plate.

See also spoiler Headlight assy.

Knee-guard - Remove the legshield. - Remove the spoiler. - Remove the two central screws and the coolant cap cover screw.

CHAS - 276

MP3 125 ie

MP3 125 ie

Chassis

- Remove the expansion tank fixing screw and the frame from the instrument panel and manually release the unions with the leg shield back plate. - Unhook the instrument panel wiring.

- Remove the six screws and the cable grommet strap in the front part of the leg shield back plate.

CHAS - 277

Chassis

- Remove the ignition switch plastic ring and the two plastic covers near the footrest.

- Remove the five screws on the leg shield back plate rear part.

- Remove the two leg shield back plate front screws, see figure.

- Remove the two leg shield back plate lower screws. - Remove the external temperature sensor connection.

See also Legshield spoiler

CHAS - 278

MP3 125 ie

MP3 125 ie

Chassis

Taillight assy. Open the rear case cover, remove the two screws «D», and then, the other four fixing screws «D» to pull out the headlight assembly from its fitting. Follow this procedure to remove the bulbs: Remove the snap-on bulbs «B». Remove the bulbs «A» on the bayonet by turning them 30° clockwise.

Footrest Remove the central cover. Remove the four screws and extract the half-footrest. Follow the same procedure for both half-footrests. Release the fuse-box

See also CHAS - 279

Chassis

Frame central cover

Side fairings Remove the rear screw under the rear cover.

Remove the screw on the fairing front part, pull the fairing to release the hooks. Follow the same procedure for both fairings.

Remove the five screws on the right side and the five on the left side, indicated in the figure.

License plate holder Remove the two lateral screws and the two screws inside the rear case. Operate a slight upwards thrust on the case to release license plate support from the chassis.

CHAS - 280

MP3 125 ie

MP3 125 ie

Chassis

Helmet bay Remove the chassis central cover. Remove the four external screws and the two screws inside the rear case to remove the frame.

Remove the upper frame, unscrewing the ten upper screws, the two saddle closing screws and the case light wiring.

CHAS - 281

Chassis

Remove the rear case internal screws indicated in the picture, to detach the supporting plates of the voltage regulator on one side and the saddle opening switch on the other. Remove the six upper screws. Release the case latch. Remove the case light front and rear switch connections, the HV coil, the battery leads and the fuse-box.

See also Frame central cover

spoiler Remove the shield central finish; then, screw the six screws indicated in the figure.

Remove the five screws indicated in the figure.

See also

CHAS - 282

MP3 125 ie

MP3 125 ie

Chassis

Headlight assy.

Fuel tank Remove the chassis central cover. Remove the footrest. Remove the three tank retainers.

Remove the two lower bracket retainers indicated in the figure. Disconnect the electric wiring and the fuel pipes.

See also Footrest

CHAS - 283

MP3 125 ie

Chassis

Top-case Rear Remove the four fixing screws of the cover and release it from the two leverages.

Handles and top side fairings •

Operating from the rear case remove the two screws indicated in the figure.

•

Remove the case light bulb indicated in the picture and remove the internal screw indicated in the picture.

•

CHAS - 284

Remove the backrest cushion

MP3 125 ie

Chassis

Remove the six screws indicated in the figure.

Radiator cover - Remove the two front screws indicated in the picture

- Remove the two lower retainers together with bushing from under the grille. - Remove the two screws located at the back of the grille.

CHAS - 285

Chassis

- Remove the two rear retainers and then, the two wheelhouse front retainers.

- Remove the two screws fixing the radiator lower protection to the leg shield back plate. - After that, press up and pull the protection front part so as to release it from the radiator frame.

CHAS - 286

MP3 125 ie

INDEX OF TOPICS

PRE-DELIVERY

PRE DE

MP3 125 ie

Pre-delivery

Carry out the listed tests before delivering the vehicle. Warning - Handle fuel with care. Fit the plastic cover supplied on the joint on the steering tube as shown in the figure.

Proceed as follows if the customer requests installation of splash guards on the vehicle: •

Fit the flap inside the mudguard shown in the figure, matching up the 4 anchor holes.

•

Fit the 4 washers and the 4 screws on the outer side of the mudguard, then tighten to the specified torque.

Locking torques (N*m) splash guard fastener screws 2 - 3

Aesthetic inspection Appearance check: - Paintwork - Fitting of plastics - Scratches - Dirt

Tightening torques inspection Visually check that there is a yellow mark on the following clamps: Front suspension - Front left wheel fixing screws - Front right wheel fixing screws - Speed sensor fixing screws - Screw pipe coupling - roll lock gripper rear suspension - Shock absorbers upper and lower retainer screw PRE DE - 288

MP3 125 ie

Pre-delivery

- Screws fixing silencer supporting arm to engine - Rear wheel axle nut Front brake - Screws fixing brake disc to left wheel - Screws fixing brake disc to right wheel - Screws fixing brake callipers and suspension - Screws fixing brake pipe coupling to callipers Rear brake - Parking brake calliper fixing screws - Parking brake calliper fixing screws - brake cable - Screws fixing brake pipe coupling to calliper Chassis - Swinging arm to engine pin locknut - Swinging arm to chassis pin locknut - Side stand to engine bolt nut

Electrical system • Battery • Main switch • Lights: high beam lights, low beam lights, taillights (front and rear) and relevant warning lights - Headlight adjustment according to the regulations currently in force • Front and rear stop light buttons and bulb • Turn indicators and their warning lights • Instrument lighting • instruments: fuel and temperature indicator •Instrument panel lights • Horn • Electric starter • Engine stopping with emergency stop switch • Electric opening of saddle with solenoid • Tilting system locking - unlocking button CAUTION

TO ENSURE MAXIMUM PERFORMANCE, THE BATTERY MUST BE CHARGED BEFORE USE. INADEQUATE CHARGING OF THE BATTERY WITH A LOW LEVEL OF ELECTROLYTE BEFORE IT IS FIRST USED SHORTENS THE LIFE OF THE BATTERY. CAUTION

WHEN INSTALLING THE BATTERY, ATTACH THE POSITIVE LEAD FIRST AND THEN THE NEGATIVE ONE. WARNING

BATTERY ELECTROLYTE IS TOXIC AND IT MAY CAUSE SERIOUS BURNS. IT CONTAINS SULPHURIC ACID. AVOID CONTACT WITH YOUR EYES, SKIN AND CLOTHING. PRE DE - 289

Pre-delivery

MP3 125 ie

IN CASE OF CONTACT WITH YOUR EYES OR SKIN, RINSE WITH ABUNDANT WATER FOR ABOUT 15 MINUTES AND SEEK IMMEDIATE MEDICAL ATTENTION. IF IT ACCIDENTALLY SWALLOWED, IMMEDIATELY DRINK LARGE QUANTITIES OF WATER OR VEGETABLE OIL. SEEK IMMEDIATE MEDICAL ATTENTION. BATTERIES PRODUCE EXPLOSIVE GASES; KEEP THEM AWAY FROM NAKED FLAMES, SPARKS AND CIGARETTES. IF THE BATTERY IS CHARGED IN A CLOSED PLACE, TAKE CARE TO ENSURE ADEQUATE VENTILATION. ALWAYS PROTECT YOUR EYES WHEN WORKING CLOSE TO BATTERIES. KEEP OUT OF THE REACH OF CHILDREN CAUTION

NEVER USE FUSES WITH A CAPACITY HIGHER THAN THAT RECOMMENDED. USING A FUSE OF UNSUITABLE RATING MAY SERIOUSLY DAMAGE THE VEHICLE OR EVEN CAUSE A FIRE.

Levels check Level check: - Hydraulic brake system liquid level. - Roll lock system fluid level - Rear hub oil level - Engine coolant level - Engine oil level

Road test Test ride - Cold start - Instrument operations - Response to the gas command - Stability on acceleration and braking - Rear and front brake efficiency - Parking brake efficiency - Rear and front suspension efficiency - Abnormal noise - Tilting system locking - unlocking efficiency

Static test Static control after the test ride: • Hot engine restart • Minimum seal (turning the handlebar) • Uniform steering rotation • Possible losses • electric radiator fan operation CAUTION

PRE DE - 290

MP3 125 ie

Pre-delivery

CHECK AND ADJUST TYRE PRESSURE WITH TYRES AT AMBIENT TEMPERATURE. CAUTION

NEVER EXCEED THE RECOMMENDED INFLATION PRESSURES OR TYRES MAY BURST.

Functional inspection Functional Checks: • Hydraulic braking system: lever travel • Clutch: proper functioning check • Engine: proper general functioning and no abnormal noise check • Other: papers check, frame and engine number check, tools and equipment, licence plate fitting, lock check, tyre pressure check, rear-view mirror and any accessory fitting

PRE DE - 291

INDEX OF TOPICS

TIME

TIME

MP3 125 ie

Time

This section is dedicated to the time necessary to carry out repairs. For each operation, the description, code and time envisages are specified.

Engine

ENGINE 1

Code 001001

2

001127

Action Engine from chassis - Removal and refit. Engine - Complete service

Duration

TIME - 293

MP3 125 ie

Time

Crankcase

CRANKCASE 1 2 3 4 5

TIME - 294

Code 001133 001099 001100 001124 001153

Action Engine crankcase - Replacement Flywheel-side oil seal - Replacement Clutch-side oil seal - Replacement Lubrication by pass - Replacement Crankcase halves gasket - Replacement

Duration

MP3 125 ie

Time

Crankshaft

CRANKSHAFT 1

Code 001117

Action Crankshaft - Replacement

Duration

TIME - 295

MP3 125 ie

Time

Cylinder assy.

CYLINDER ASSEMBLY 1 2 3 4

TIME - 296

Code 001002 001154 001176 000212

Action Cylinder / Piston - Replacement Pistonsrings-pin assembly - Service Rings / Pin - Replacement Cylinder gasket - Repl.

Duration

MP3 125 ie

Time

Cylinder head assy.

HEAD ASSEMBLY 1 2 3 4 5 6 7 8

Code 001057 007012 000235 001056 001045 001049 001202 001203

Action Thermostat - Replacement Coolant bleed valve - Replacement Coolant temperature sensor - Repl. Head gasket - change Valves - Replacement Valves - adjust Residual stroke - Check Calibrated washer - Replacement

Duration

TIME - 297

MP3 125 ie

Time

Rocker arms support assy.

ROCKERS MOUNTING UNIT 1 2 3 4

TIME - 298

Code 001148 001126 001044 140021

Action Rockers valves - Replacement Head - Replacement Camshaft - Replacement Camshaft timing system pulley - Replac

Duration

MP3 125 ie

Time

Cylinder head cover

HEAD COVER 1 2 3 4

Code 001089 001093 001088 001074

5

001159

Action Head cover - Replacement Spark plug - Replacement Head cover gasket - Replacement Oil vapour recovery pipe - Replacement Oil vapour recovery tank - Service

Duration

TIME - 299

MP3 125 ie

Time

Flywheel cover

FLYWHEEL COVER 1 2 3 4 5 6

TIME - 300

Code 001150 001160 001123 001102 003064 001087

Action Flywheel cover gasket - change Oil pressure sensor - change Oil filter -Replacement Net oil filter - change / Cleaning Engine oil - change Flywheel cover - Replacement

Duration

MP3 125 ie

Time

Driven pulley

DRIVEN PULLEY 1 2 3 4

Code 001012 001022 001110 001155

Action Driven pulley - overhaul Clutch - Replacement Driven pulley- Replacement Clutch housing - Replacement

Duration

TIME - 301

MP3 125 ie

Time

Oil pump

OIL PUMP 1

Code 001129

2 3 4 5 6 7 8

001125 001122 001172 001130 001042 001112 001051

TIME - 302

Action Chain tensioner - Service and Replacement Chain guide pads - Replacement Oil pump chain - Replacement Chain cover flap - change Oil sump - change Oil pump - overhaul Oil pump - change Belt/Timing chain - Change

Duration

MP3 125 ie

Time

Final gear assy.

FINAL REDUCTION GEAR 1

Code 002031

2 3 4 5 6

003065 004180 004125 001179 001156

Action Rear wheel hub bearings - Replacement Gear box oil - Replacement Reduction gear pipe - replace Rear wheel axle - Replacement Hub drive shaft - replacement Gear reduction unit cover - Replacement

Duration

TIME - 303

MP3 125 ie

Time

Driving pulley

DRIVING PULLEY 1 2 3 4 5

TIME - 304

Code 001177 001086 001011 001066 001006

Action CVT rollers / sliders - Replacement Driving half-pulley - Replacement Drive belt - Replacement Driving pulley - Removal and refitting Driving pulley - Service

Duration

MP3 125 ie

Time

Transmission cover

TRANSMISSION COVER 1

Code 001135

2

001096

3

001131

4 5

001145 001204

Action Transmission cover bearing - Replacement Transmission crankcase cover - Replacement Transmission air intake - Replacement Belt crankcase - Replacement CVT Filter - Replacement

Duration

TIME - 305

MP3 125 ie

Time

Water pump

WATER PUMP 1

Code 007009

2 3

001113 005154

TIME - 306

Action Head-pump by-pass rubber sleeve Replacement Water pump - Replacement Power cable harness - Replacement

Duration

MP3 125 ie

Time

Starter motor

ELECTRIC STARTER 1 2 3

Code 001020 001017 001151

Action Starter motor - Replacement Start-up pinion - Replacement Starter driven gearing - Replacement

Duration

TIME - 307

MP3 125 ie

Time

Flywheel magneto

MAGNETO FLYWHEEL 1 2 3 4

TIME - 308

Code 001173 001058 001067 001104

Action Rotor - Replacement Complete flywheel - change Stator - Removal and Refitting Start-up freewheel - Replacement

Duration

MP3 125 ie

Time

Butterfly valve

THROTTLE BODY 1 2 3

Code 001047 001023 001013

Action Injector - Replacement Control unit - Replacement Intake manifold - change

Duration

TIME - 309

MP3 125 ie

Time

Exhaust pipe

SILENCER 1 2 3 4

TIME - 310

Code 001095 005138 001092 001009

Action Silencer heatshield - Replacement Lambda probe - Replacement Exhaust manifold - Replacement Silencer - Replacement

Duration

MP3 125 ie

Time

Air cleaner

AIR CLEANER 1

Code 004122

2 3

001014 001015

Action Air cleaner carburettor fitting - Replacement Air filter - Replacement / cleaning Air filter box - Replacement

Duration

TIME - 311

MP3 125 ie

Time

Frame

CHASSIS 1 2 3 4

Code 004146 004116 004001 004147

5

004143

TIME - 312

Action Front chassis - Replacement Rear frame - Replacement Chassis - Replacement footrest support bracket one side Replacement Footrest support - Replacement

Duration

MP3 125 ie

Time

Centre-stand

STAND 1 2 3

Code 001053 004179 004004

Action Stand pin - Replacement Stand bumper - Replacement Stand - Replacement

Duration

TIME - 313

MP3 125 ie

Time

Legshield spoiler

LEGSHIELD 1 2 3

Code 004020 004064 004055

4 5 6

004149 004022 004167

TIME - 314

Action Headlight frame - Replacement Legshield - Replacement Turning indicator frame - Replacement Shield central cover - Replacement Shield lower section - Replacement Grille / radiator cover - Replacement

Duration

MP3 125 ie

Time

Side fairings

SIDE COVERS

1 2 3 4 5

Code 004036 004129 004085 004068 004037

Action Lower chassis cover - Replacement Rear fairing - Replacement Fairing (1) - Replacement Passenger handgrip - Replacement Side aprons-Replacement

Duration

TIME - 315

MP3 125 ie

Time

Rear cover

REAR SHIELD 1

TIME - 316

Code 004065

Action Legshield, rear part - Removal and refitting

Duration

MP3 125 ie

Time

Central cover

CENTRAL COVER 1

Code 004059

2 3 4 5 6

004135 004011 004012 004015 004075

Action Spark plug inspection flap - Replacement Fuel tank port - Replacement Central chassis cover - Replacement Rear fairings - Removal and refitting Footrest - Removal and Refitting Front mat - Replacement

Duration

TIME - 317

MP3 125 ie

Time

Mudguard

MUDGUARDS 1 2 3 4

Code 007015 004009 004181 004184

5

004002

TIME - 318

Action Radiator air duct - Replacement Rear mudguard - Replacement Lower cover - Replacement Front mudguard support - replacement Front mudguard - change

Duration

MP3 125 ie

Time

Fuel tank

FUEL TANK 1 2 3 4 5 6

Code 004137 005010 004109 004168 004005 004073

Action Injector pump pipe - Replacement Tank float - Replacement Fuel tank breather - change Fuel tank cap - Replacement Fuel tank - Replacement Fuel pump - Replacement

Duration

TIME - 319

MP3 125 ie

Time

Rear shock-absorber

REAR SHOCK ABSORBERS 1

Code 003007

2

003035

3

003077

TIME - 320

Action Rear shock absorber - Removal and Refitting Shock absorber mounting and brake calliper - Replacement silencer/rear shock absorber support arm - Service

Duration

MP3 125 ie

Time

Handlebar covers

HANDLEBAR COVERS 1

Code 000307

2

004019

3 4

004026 004018

Action RIGHT OR LEFT CONTROL ASSEMBLY REPLACEMENT Rear handlebar covers - Replacement Handlebar cover - Replacement Front handlebar covers - Replacement

Duration

TIME - 321

MP3 125 ie

Time

Handlebar components

HANDLEBAR COMPONENTS 1

Code 002060

2 3 4 5

002059 003001 003061 002063

6 7 8 9 10

002071 002037 002067 002024 004162

11

003059

TIME - 322

Action Complete throttle control - Replacement Right-hand knob - Replacement Handlebar - Replacement Accelerator transmission - adjust Complete throttle transmission - Replacement Left knob - Replacement Brake lever - Replacement Rear brake pump - Replacement Front brake pump - Replacement Mirror mounting and/or brake pump fitting U-bolt - Replacement Counterweight - Replacement

Duration

MP3 125 ie

Time

Swing-arm

SWINGING ARM 1 2

Code 004058 003081

3

001072

4

003080

Action Silent block - Replacement Swinging arm support flange - Replacement Engine-chassis connection swinging arm - Replacement Swinging arm on frame - Replacement

Duration

TIME - 323

MP3 125 ie

Time

Seat

SADDLE 1

TIME - 324

Code 004003

Action Saddle - Replacement

Duration

MP3 125 ie

Time

Instrument panel

INSTRUMENT PANEL 1 2 3 4

Code 004021 005014 004099 004035

Action Shield upper section - Replacement Odometer - Replacement Odometer housing - Replacement Instrument panel - Replacement

Duration

TIME - 325

MP3 125 ie

Time

Locks

LOCKS 1 2

Code 004172 005099

3 4 5

004054 004001 005072

Turn signal lights Rear lights

TIME - 326

Action Rear case lock catch - Replacement Saddle opening electric-actuator Replacement Saddle lock catch - Replacement Chassis - Replacement Immobilizer aerial - Replacement

Duration

MP3 125 ie

Time

REAR TURNING INDICATOR LIGHTS 1 2

Code 005005 005022

3

005031

4

005032

5

005131

6 7

005066 005068

Action Taillight - change Rear turning indicators - Replacement number plate light bulb - Replacement number plate light glass - Replacement number plate light support - Replacement Rear light bulbs - Replacement Rear turning indicator bulb - Replacement

Duration

Front lights

TIME - 327

MP3 125 ie

Time

FRONT TURNING INDICATOR LIGHTS 1

Code 005067

2

005012

3 4

005002 005008

TIME - 328

Action Front turning indicator bulb - replacement Front turning indicators - Replacement Front light - replacement Headlight bulbs - Replacement

Duration

MP3 125 ie

Time

Front wheel

FRONT WHEELS 1 2 3 4 5

Code 003047 003033 003037 002041 004123

Action Front tyre - Replacement Front wheel hub- Replacement Front wheel rim - Replacement Front brake disc - Replacement Front wheel - Replacement

Duration

TIME - 329

MP3 125 ie

Time

Rear wheel

REAR WHEEL 1 2 3

Code 002070 001016 001071

4

004126

TIME - 330

Action Rear brake disc - Replacement Rear wheel - Replacement Front wheel rim - Removal and Refitting Rear wheel tyre - Replacement

Duration

MP3 125 ie

Time

Electric devices

ELECTRICAL DEVICES

1 2 3 4 5

Code 005075 005035 005011 005007 005003

Action Stop solenoid - Replacement Headlight solenoid - Replacement Starter relay - Replacement Battery - change Horn - Replacement

Duration

TIME - 331

MP3 125 ie

Time

CABLE HARNESS 1

Code 005001

Electronic controls

TIME - 332

Action Electrical system - Replacement

Duration

MP3 125 ie

Time

HANDLEBAR CONTROLS 1 2

Code 005017 005077

3 4 5 6

005041 004010 005040 005006

7 8 9 10

005039 005143 005142 005084

11

888126

12 13

005132 005021

Action Stop switch - Replacement Emergency stop switch - Replacement Starter button - Replacement Anti-theft lock - Replacement Horn button - Replacement Light or turning indicator switch - Replacement Lights switch - Replacement Mode button - Replacement Unlocking switch - Replacement Emergency light switch - Replacement Helmet compartment light switch - replacement Case opening button - Replacement Saddle opening button - Replacement

Duration

Transmissions

LOCKS TRANSMISSIONS 1

Code 003094

2

002082

3

002083

4

002093

Action Roll lock calliper control cable - replacement Fuel tank door opening drive - Replacement Saddle opening transmission - Replacement Case opening transmission - Replacement

Duration

TIME - 333

MP3 125 ie

Time

5

Code 002026

Action Parking brake transmission - replacement

Duration

Helmet bay

HELMET COMPARTMENT 1 2

Code 005046 005026

3

005027

4

004016

TIME - 334

Action Battery cover - change Helmet compartment bulb - Replacement Helmet compartment bulb support Replacement Helmet compartment - Replacement

Duration

MP3 125 ie

Time

Rear side fairings

REAR COVERS 1 2 3 4

Code 004081 004174 005048 004082

Action Case lid - Replacement Case leverage number plate holder - Replacement Case gasket - Replacement

Duration

TIME - 335

MP3 125 ie

Time

Front suspension

FRONT SUSPENSION 1 2 3 4 5 6

TIME - 336

Code 003010 003111 003038 003040 003107 003113

Action Front suspension - Service Side steering tube - replacement Front wheel axle - Remov. and refitt. Front wheel bearings - Replacement Sliding stems - replacement Front shock absorber - replacement

Duration

MP3 125 ie

Time

Cooling system

COOLING SYSTEM 1

Code 007013

2 3 4 5

001052 007001 007024 007003

6 7

007016 007002

Action Radiator expansion tank connection pipe - change Coolant and air bleed - Replacement Expansion tank - Replacement Expansion tank cap - Replacement Coolant delivery and return pipe change Fan with support - Replacement Water radiator - replacement

Duration

TIME - 337

MP3 125 ie

Time

Braking system

BRAKING SYSTEM

1 2 3 4

Code 002025 003096 003100 003108

5

003109

6

002002

7

002020

8

002081

9 10

003118 003103

11

003102

12

003088

13

002021

TIME - 338

Action Brake piping - Replacement Roll lock calliper- replacement Roll lock calliper pads - replacement Parking brake flexible transmission replacement Parking brake mechanical calliper replacement Shoes - Rear brake pads - Replacement Rear brake pipes - Removal and refitting Rear brake disc piping - Replacement Roll lock disc section - replacement Splitter for suspension locking system pipes- replacement Pipes for the splitter-calliper suspension locking system - replacement Roll lock hydraulic pump - replacement Front brake piping - Replacement

Duration

MP3 125 ie

Time

14 15 16

Code 002007 002039 003104

17

003119

18

003105

19

003106

20 21

003121 003122

22 23

002048 002080

24

002047

Action Front brake pads - Replacement Front brake calliper - Replacement Suspension system locking calliperreplacement Pipes for the pump-splitter suspension locking system - replacement Suspension locking system brake fluid - repl. Suspension locking system pressure sensor - Replacement Parking brake lever - replacement Parking brake lever micro-switch - replacement Rear brake calliper - Replacement Rear brake oil bleed system Change Front brake fluid and system bleeding plug - Repl.

Duration

Windscreen

WINDSCREEN 1

Code 004101

Action Windscreen - Replacement

Duration

TIME - 339

MP3 125 ie

Time

Stickers

TRANSFERS 1 2

TIME - 340

Code 004066 004159

Action Driving mirror - Replacement Plates / Stickers - Replacement

Duration

MP3 125 ie

Time

The tilt mechanism

ROLL SYSTEM 1 2 3 4 5

Code 003073 003112 003002 003115 003114

6 7

003116 003117

8

003110

Action Steering clearance - Adjustment Central steering tube - replacement Steering bearing - Replacement Parallelogram arms - replacement Parallelogram bearings - replacement Steering rod - replacement Constant-velocity universal joint - replacement Side headstock fifth wheels - Repl.

Duration

TIME - 341

MP3 125 ie

Time

Geared motor

GEARED MOTOR 1

Code 003101

2 3

005009 003095

4 5 6 7

001069 001094 003120 003093

8 9

003090 003092

10 11

003091 003089

12

000317

13

003097

TIME - 342

Action Roll lock calliper control lever - replacement Voltage regulator - Replacement Roll lock calliper support bracket - replacement HV coil - Replacement Spark plug cap - Replacement Roll lock control unit - replacement Geared motor crankcase - replacement Gear electric motor - replacement Geared motor bearings - replacement Geared motor pinion - replacement Geared motor potentiometer - replacement Turn indicators blinker - Replacement Roll lock calliper micro-switch - replacement

Duration

A Air filter: 45

B Battery: 67, 77, 90, 91 Brake: 261, 263–265 Bulbs:

C Checks: 71 Coolant: 199

E Electric: 331 Engine oil: 46

F Fuel: 176, 185, 283, 319 Fuses: 88

H Headlight: 51, 274, 276, 283 Horn: 83 Hub oil: 44

I Identification: 8 Instrument panel: 325

M Maintenance: 7, 39, 42

O Oil filter: 49

R Recommended products:

S Saddle: Shock absorbers: 258 Spark plug: 43, 76 Stand: Start-up: Suspension: 55, 56, 218, 336

T Tank: 283, 319 Transmission: 9, 54, 107, 121, 305 Turn indicators: 70 Tyres: 10

V Vehicle: 8, 100, 101