PIAGGIO 633929(IT) Leitfaden

SERVICE STATION MANUAL

633929(IT)-633930(EN)-633931(FR)-633932

(ES)-633937(ES)-633938(PT)-633941(NL)-633942

(EL)

MP3 125

SERVICE STATION

MANUAL

MP3 125

The descriptions and illustrations given in this publication are not binding. While the basic features as

described and illustrated in this manual remain unchanged, PIAGGIO - GILERA reserves the right, at

any time and without being required to update this publication beforehand, to make any changes to

components, parts or accessory supplies, which it considers necessary to improve the product or which

are required for manufacturing or construction reasons.

Not all versions shown in this publication are available in all Countries. The availability of individual

versions should be confirmed with the official Piaggio sales network.

in whole or in part is prohibited."

PIAGGIO & C. S.p.A. - After-Sales

V.le Rinaldo Piaggio, 23 - 56025 PONTEDERA (Pi)

SERVICE STATION MANUAL

MP3 125

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 changes 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 relating to 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 Sectionsmarked with this symbol indicatethe correct use of thevehicle

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

SUSPENSIONS SUSP

BRAKING SYSTEM BRAK SYS

COOLING SYSTEM COOL SYS

CHASSIS CHAS

PRE-DELIVERY PRE DE

TIME TIME

INDEX OF TOPICS

CHARACTERISTICS CHAR

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 open 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 solvent. Lubricate all the

work surfaces except the tapered couplings before refitting.

- 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 scooter.

- When carrying out maintenance operations on the vehicle that involve the electrical system, make

suretheelectricconnectionshavebeenmadeproperly,particularlythegroundandbatteryconnections.

Characteristics MP3 125

CHAR - 2

Vehicle identification

Chassis prefix (FULL OPTIONAL): ZAPM47301

Chassis prefix (BASE): ZAPM300

Engine prefix: M473M

Dimensions and mass

WEIGHTS AND DIMENSIONS

Specification Desc./Quantity

Dry weight (FULL OPTIONAL) 210 ± 5 kg

Dry weight (BASE) 199 ± 5 kg

Wheelbase 1490 mm

Height 1245 mm

Width (handlebar) 745 mm

Overall length 2130 mm

Track 420 mm

MP3 125 Characteristics

CHAR - 3

Engine

DATA

Specification Desc./Quantity

Type single-cylinder, four-stroke

Timing system single overhead camshaft chain driven on the left-

hand side, three-arm rocking levers set up with

threaded set screw

Bore x stroke 57 x 48.6 mm

Cubic capacity 124 cm³

Compression ratio 11.5 - 12.5 : 1

Air filter sponge,impregnatedwithmixture(50%petroland

50% oil)

Starting system electric starter motor with freewheel

Lubrication with lobe pump (inside the crankcase) controlled

by a chain and double filter: mesh and paper

Fuel supply Unleaded petrol; depression carburettor, electric

pump or vacuum pump.

valve clearance intake: 0.10 mm - discharge: 0.15 mm

Engine idle speed 1,650±100 rpm

Max. speed 100 km/h

Transmission

TRANSMISSION

Specification Desc./Quantity

Transmission Withautomaticexpandablepulleyvariatorwithtor-

que server, V belt, self-ventilating automatic cen-

trifugal dry clutch, gear reduction unit and trans-

mission housing with forced air circulation cooling.

Capacities

CAPACITY

Specification Desc./Quantity

Engine oil 1200 cm³

Rear hub oil Capacity ~ 150 cm³

Fuel tank capacity Tank capacity: ~12 l (approximate value)

Fuel reserve ~ 2.0 l (approximate value)

Cooling circuit Capacity: ~ 2.0 l

Electrical system

ELECTRICAL COMPONENTS

Specification Desc./Quantity

Ignition/advance Electronic, with inductive discharge and variable

advance with three-dimensional mapping

Spark plug NGK CR 8EB

Spark plug Champion RG 4 HC

Characteristics MP3 125

CHAR - 4

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