VESPA GT 125 Mode d’emploi

SERVICE STATION MANUAL

664611 IT-664612 EN-664613 FR-664614 DE-664615

ES-664616 PT-664617 OL-664618 EL

Vespa GT 125

SERVICE STATION

MANUAL

Vespa GT 125

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

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 accessories, 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 single versions

should be checked at 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

Vespa GT 125

This service station manual has been drawn up by Piaggio & C. Spa to be used by the workshops of

Piaggio-Gilera dealers. This manual is addressed to Piaggio service mechanics who are supposed to

have a basic knowledge of mechanics principles and of vehicle repairing techniques and procedures.

Any significant changes made to the vehicle characteristics or to specific repair operations will be

promptly communicated by updates to this manual. Nevertheless, no work can be satisfactory if the

necessary equipment and tools are not available. It is therefore advisable to read the sections of this

manual relating to special tools, as well as the tool catalogues.

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 Vespa GT 125

CHAR - 2

Vehicle identification

Chassis prefix: ZAPM313000000 ÷ 1001

Engine prefix: M315M1001

Dimensions and mass

WEIGHTS AND DIMENSIONS

Specification Desc./Quantity

Total kerb weight 145 ± 5 kg

Width (to hand grips) 755 mm

Length 1940 mm

Wheelbase 1395 mm

Height 1180 mm

Saddle height 800 mm

Vespa GT 125 Characteristics

CHAR - 3

Engine

ENGINE

Specification Desc./Quantity

Type single-cylinder, four-stroke and four liquid-cooled

valves

Timing system single overhead camshaft chain driven on the left-

hand side, three-arm rocking levers set up with

threaded set screw

Bore 57 mm

Stroke 48.6 mm

Cubic capacity 124 cm³

Compression ratio 12 ± 0.5: 1

Carburettor Keihin CVK 30

Engine idle speed 1650 ± 50 rpm

Air filter sponge,impregnatedwithmixture(50%petroland

50% oil)

Starting system electric starter

Lubrication with lobe pump (inside the crankcase) chain-driv-

en and double filter: mesh and paper

Fuel supply petrol, with vacuum pump and through carburettor

MAX. power 10.5 to 9500 rpm

MAX torque 12 Nm at 8,000 rpm

Characteristics Vespa GT 125

CHAR - 4

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