Suzuki VL125 Service Manual

VL125
99500-31150-01E
loc83

Suzuki VL125 Specifications

General

Displacement	124 cc
Ignition	Electronic ignition (CDI)
Starter	Electric
Transmission	5-speed constant mesh
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Swingarm, coil spring, oil damped
Rear Brake	Drum
Overall Length	2, 080 mm
Overall Width	760 mm
Ground Clearance	150 mm
Fuel System	Carburetor
Front Brake	Single disc
Front Tire	90/90-18
Seat Height	735mm

Summary

General Information

Technical Specifications

Periodic Maintenance

Periodic Maintenance Schedule

Lists recommended service intervals for maintenance items.

Valve Clearance Adjustment

Engine Oil and Oil Filter Replacement

Procedures for engine oil and filter replacement.

Brake System Inspection

Inspects brake system components and fluid level.

Compression Pressure Check

Oil Pressure Check

Engine

Engine Removal and Reinstallation

Detailed steps for removing and reinstalling the engine.

Piston Inspection and Removal

Inspection and removal procedures for pistons.

Cylinder Head Cover Service

Camshaft Inspection

Inspection of camshaft wear, journal wear, and runout.

Cylinder Inspection

Inspection of cylinder distortion and bore diameter.

Clutch Service

Disassembly and inspection of clutch components.

Transmission Disassembly and Inspection

Disassembly and inspection of transmission gears and forks.

Crankcase Separation and Assembly

Procedures for separating and assembling crankcases.

Fuel and Lubrication System

Fuel System Operation

Carburetor Specifications

Carburetor specifications and identification.

Fuel Level Check

Float Height Adjustment

Carburetor Cleaning Procedures

Chassis

Front Wheel Service

Procedures for removing, inspecting, and reassembling the front wheel.

Wheel Bearing Service

Front Brake System Service

Safety precautions and procedures for the front brake system.

Master Cylinder Service

Front Fork Service

Removal, disassembly, inspection, and reassembly of the front fork.

Steering System Service

Rear Wheel Service

Procedures for removing, inspecting, and reassembling the rear wheel.

Rear Brake Service

Inspection and reassembly of the rear brake drum and shoes.

Swingarm Service

Electrical System

Battery Maintenance and Specifications

Using a Multi Circuit Tester

Charging System Description

Electrical System Troubleshooting

Diagnostic flowcharts for electrical system problems.

Ignition System Description

Description of the ignition system's operation.

Starter Motor Service

Servicing Information

Engine Troubleshooting

Engine troubleshooting guide for common complaints.

Transmission Shifting Issues

Engine Overheating Troubleshooting

Brakes Power and Squeak Troubleshooting

Diagnosing insufficient braking power and squeaks.

Electrical Spark and Ignition Troubleshooting

Troubleshooting ignition spark issues.

Electrical Generator and Charging System Issues

Troubleshooting generator and charging system faults.

Electrical Starter System Troubleshooting

Wiring Diagrams

Complete wiring diagrams for different models.

Engine Tightening Torque Specifications

Torque specifications for engine components.

Chassis Tightening Torque Specifications

Service Data for Engine Components

Service Data for Suspension and Brakes/Wheels