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Vespa GT 125 User Manual

Vespa GT 125
294 pages
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WORKSHOP MANUAL
633338
Vespa GT 125-200

Table of Contents

Other manuals for Vespa GT 125

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Vespa GT 125 Specifications

General IconGeneral
Displacement124 cc
TransmissionAutomatic CVT
Rear Brake140 mm drum
Seat Height790 mm
Engine TypeSingle cylinder, 4-stroke
Cooling SystemAir-cooled
Fuel SystemElectronic injection
Front SuspensionSingle arm with coil spring and hydraulic shock absorber
Rear Suspensionhydraulic shock absorber

Summary

CHARACTERISTICS

General Information and Safety

General rules, safety precautions, maintenance guidelines, and vehicle identification.

Vehicle Dimensions and Mass

Key physical dimensions and weight specifications of the vehicle.

Engine Specifications

Detailed technical data for the engine (125 and 200 cc versions).

Chassis and Suspension Specifications

Specifications related to the chassis and suspension systems.

Braking System and Wheels/Tyres

Details on braking system, wheels, and tyre specifications.

Carburettor Specifications

Technical data for the Kehin and Walbro carburettors.

Tightening Torques

Specified torque values for various assembly points.

TOOLING

Appropriate Tools

List of specialized tools required for vehicle maintenance and repair.

MAINTENANCE

Maintenance Schedule

Schedule of routine maintenance tasks based on time or mileage.

Engine Maintenance

Procedures for engine-related maintenance like carburettor and ignition timing.

Fluid System Maintenance

Procedures for servicing air filter, engine oil, and cooling system.

Braking System Maintenance

Steps for checking and maintaining brake fluid and systems.

Emission Control Maintenance

Procedures for performing CO checks and servicing SAS filters.

TROUBLESHOOTING

Engine Problems

Solutions for common engine performance and starting issues.

Braking and Transmission Issues

Troubleshooting steps for clutch, braking, and transmission problems.

Steering and Suspension Issues

Diagnosing and resolving problems related to steering and suspension.

Electrical System Issues

Troubleshooting common problems with the battery and lights.

ELECTRICAL SYSTEM

Ignition System

Description and diagrams of the scooter's ignition system components.

Headlights and Starter System

Information on headlights, bulbs, and the automatic starter circuit.

Battery Recharge and Starting Circuit

Details on battery charging, starter motor, and related components.

Level Indicators and Signals

Explanation of dashboard indicators and warning lights.

Turn Signal Lights System

Troubleshooting procedures for turn signal light malfunctions.

Immobiliser and Diagnostic Codes

Information on the immobiliser system and diagnostic fault codes.

Fuses

Location, characteristics, and replacement guidelines for vehicle fuses.

Battery Maintenance

Procedures for battery cleaning, electrolyte level check, and charging.

ENGINE

Engine Removal from Vehicle

Step-by-step instructions for safely removing the engine.

Automatic Transmission Service

Procedures for servicing the automatic transmission components.

Clutch and Drive Belt Service

Steps for inspecting, removing, and refitting the clutch and drive belt.

Crankcase and Crankshaft

Procedures for splitting crankcase halves and inspecting crankshaft.

Carburettor Service

Detailed instructions for removing, disassembling, and servicing the carburettor.

SUSPENSIONS

Front Suspension

Procedures for removing and overhauling the front wheel and hub.

Steering Column Service

Steps for removing and overhauling the steering column components.

Shock Absorber Service

Procedures for removing, refitting, and overhauling shock absorbers.

Swing-Arm Assembly

Instructions for removing, overhauling, and refitting the swing-arm assembly.

BRAKING SYSTEM

Rear Brake Calliper Service

Procedures for removing, overhauling, and refitting the rear brake calliper.

Front Brake Calliper Service

Steps for removing, overhauling, and refitting the front brake calliper.

Brake Disc Inspection and Replacement

Procedures for inspecting and replacing the front and rear brake discs.

Brake Pad Service

Instructions for removing, refitting, and checking front and rear brake pads.

Brake Fluid System Maintenance

Procedures for bleeding the brake system and checking fluid levels.

Front Brake Pump Overhaul

Steps for overhauling the front brake master cylinder.

COOLING SYSTEM

Water Pump Overhaul

Procedures for disassembling and reassembling the water pump assembly.

Thermostat Check

Method for testing the thermostat's operation and opening temperature.

CHASSIS

Seat Removal and Refitting

Steps for removing and reinstalling the vehicle seat.

Handlebar Covers and Instrument Panel

Procedures for removing and refitting handlebar and instrument panel covers.

Ignition Key-Switch Removal

Instructions for removing the ignition key-switch in different positions.

Fuel Tank Removal

Steps for safely removing and refitting the fuel tank.

Radiator Fan Service

Procedures for removing and servicing the radiator fan assembly.

PRE-DELIVERY CHECKS

Aesthetic Inspection

Checks related to the vehicle's appearance, paint, and fitment.

Tightening Torques Inspection

Verification of critical torque settings for safety and proper assembly.

Electrical System Checks

Inspection of main electrical components and lights.

Levels Check

Procedures for checking essential fluid levels (brake, hub oil, coolant, engine oil).

Road and Static Tests

Guidelines for performing post-service road and static tests.

Functional Inspection

Comprehensive checks of major vehicle systems and components.

TIME ESTIMATES

Engine Repair Times

Estimated times for engine-related repair operations.

Crankshaft and Cylinder Repair Times

Estimated times for crankshaft and cylinder assembly repairs.

Valve Head and Camshaft Repair Times

Estimated times for valve head and camshaft related repairs.

Clutch and Drive Belt Repair Times

Estimated times for clutch and drive belt replacement or service.

Carburettor Repair Times

Estimated times for carburettor inspection, replacement, and adjustment.

Wheel and Tyre Repair Times

Estimated times for front and rear wheel and tyre servicing.

Electrical Devices Repair Times

Estimated times for replacement or service of electrical components.

Front Suspension Repair Times

Estimated times for front suspension component replacement or service.

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