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Yamaha RAPTOR YFM125RA User Manual

Yamaha RAPTOR YFM125RA
300 pages
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SERVICE MANUAL
YFM125RA
2011
2PA-28197-10LIT-11616-24-36

Table of Contents

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Yamaha RAPTOR YFM125RA Specifications

General IconGeneral
BrandYamaha
ModelRAPTOR YFM125RA
CategoryOffroad Vehicle
LanguageEnglish

Summary

General Information

Identification

Details on vehicle identification number and model label.

Important Information

Guidelines for removal, disassembly, and replacement parts.

Basic Service Information

Information on quick fasteners and electrical system handling.

Special Tools

List of special tools with part numbers and reference pages.

Specifications

General Specifications

Details on model, dimensions, weight, engine, and fuel.

Engine Specifications

Technical data for cylinder head, cylinder, camshaft, and piston.

Chassis Specifications

Specifications for front/rear suspension, wheels, brakes, and drive chain.

Tightening Torques

General and specific tightening torque values for engine and chassis fasteners.

Periodic Checks and Adjustments

Periodic Maintenance

Information on performing recommended checks and adjustments.

Checking the Fuel Line

Procedure for checking fuel and breather hoses for damage and connection.

Adjusting the Valve Clearance

Procedure for measuring and adjusting valve clearance on a cold engine.

Bleeding the Hydraulic Brake System

Steps for bleeding the hydraulic brake system to remove air.

Adjusting the Drive Chain Slack

Procedure for checking and adjusting drive chain slack.

Changing the Engine Oil

Step-by-step guide for draining and refilling engine oil.

Chassis

General Chassis

Procedures for removing and installing the seat, front fender, and headlight.

Front Wheel

Procedures for removing, checking, and installing front wheels and brake discs.

Rear Wheel

Procedures for removing, checking, and installing rear wheels.

Front Brake

Procedures for removing and installing front brake pads and calipers.

Handlebar

Procedures for removing and installing handlebar components.

Steering Stem

Procedures for removing, checking, and installing the steering stem.

Chain Drive

Procedures for removing, checking, and installing the drive chain.

Engine

Engine Removal

Procedures for removing the exhaust pipe, muffler, and engine.

Cylinder Head

Procedures for removing and checking the cylinder head.

Camshaft

Procedures for removing and checking rocker arms and camshaft.

Valves and Valve Springs

Procedures for removing and checking valves and valve springs.

Cylinder and Piston

Procedures for removing and checking the cylinder and piston.

Clutch

Procedures for removing and checking clutch components.

Oil Pump

Procedures for removing and checking the oil pump assembly.

Generator and Starter Clutch

Procedures for removing and checking generator and starter clutch.

Fuel System

Fuel Tank

Procedures for removing and checking the fuel tank and fuel cock.

Carburetor

Procedures for removing, checking, and assembling the carburetor.

Electrical System

Ignition System

Circuit diagram and troubleshooting for the ignition system.

Electric Starting System

Circuit diagram and troubleshooting for the electric starting system.

Charging System

Circuit diagram and troubleshooting for the charging system.

Lighting System

Circuit diagram and troubleshooting for the lighting system.

Signaling System

Circuit diagram and troubleshooting for the signaling system.

Electrical Components

Checking various electrical components like switches, bulbs, and relays.

Troubleshooting

General Information

Guide to basic troubleshooting procedures and common issues.

Starting Failures

Troubleshooting steps for engine and electrical starting failures.

Incorrect Engine Idling Speed

Troubleshooting steps for incorrect engine idling speed.

Faulty Gear Shifting

Troubleshooting for difficult gear shifting and related issues.

Faulty Clutch

Troubleshooting for clutch slips and drags.

Overheating

Troubleshooting steps for engine overheating issues.

Poor Braking Performance

Troubleshooting steps for poor braking performance.

Unstable Handling

Troubleshooting steps for unstable handling issues.

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