1976 – 1984 Yamaha YZ100 YZ125 YZ175 YZ250 YZ400 YZ465 YZ490 Motorcycle Repair Manual

Description

This 1976 – 1984 Yamaha YZ100 YZ125 YZ175 YZ250 YZ400 YZ465 YZ490 Repair Manual by Clymer Publishing provides detailed service information, step-by-step repair instruction and maintenance specifications for 1976 – 1984 Yamaha YZ100 – YZ490 Monoshock two stroke motorcycles. Perfect for restoring and maintaining your vintage motocrosser.

Includes everything you need to know to perform tune-up and routine maintenance on the engine, clutch and transmission, fuel and exhaust, ignition system, steering and suspension, wheels, brakes and tires, electrical system, frame and body. Features complete wiring diagrams and 340 illustrated pages.

1976 – 1984 Yamaha YZ Monoshock Motorcycles Covered

1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983 Yamaha YZ100
1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984 Yamaha YZ125
1976 Yamaha YZ175 Monoshock
1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984 Yamaha YZ250 Monoshock
1976, 1977, 1978, 1979 Yamaha YZ400 Monoshock
1980, 1981 Yamaha YZ465 Monoshock
1982, 1983, 1984 Yamaha YZ490 Monoshock

Table of Contents

QUICK REFERENCE DATA

GENERAL INFORMATION
Manual organization, Service hints, Torque specifications, Safety first, Special tips, Mechanic’s tips, Parts replacement, Expendable supplies, Tools, What year is it?, Serial numbers

TROUBLESHOOTING
Operating requirements, Troubleshooting instruments, Emergency troubleshooting, Engine starting, Engine performance, Engine noises, Excessive vibration, Two-stroke pressure testing, Front suspension and steering, Brake problems

LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-checks, Tires and wheels, Lubricants, Cleaning solvent, Periodic lubrication, Periodic maintenance, Engine tune-up, Storage

ENGINE
Engine principles, Engine lubrication, Engine cooling, Servicing engine in frame, Engine, Cylinder head, Cylinder, Piston, piston pin and piston rings, Magneto, Reed valve assembly, Crankcase and crankshaft, Kickstarter, Service and adjustment

CLUTCH AND TRANSMISSION
Clutch, Clutch cable, Clutch release (push lever) mechanism, External shift mechanism, Transmission and internal shift mechanism

FUEL AND EXHAUST SYSTEMS
Air cleaner, Carburetor operation, Carburetor service, Carburetor adjustments, Fuel shutoff valve, Fuel tank, Fuel filter, Exhaust system, Exhaust system decarbonizing, Exhaust system repair

ELECTRICAL SYSTEM
Capacitor discharge ignition, Spark plug, Magneto-outer rotor (type I), Magneto-inner rotor (type II, III, IV), Ignition coil, Engine kill switch

FRONT SUSPENSION AND STEERING
Front wheel, Front hub, Wheels, Tire changing, Tire repairs, Handlebar, Steering head, Front fork

REAR SUSPENSION
Rear wheel, Rear hub, Drive sprocket, Drive chain, Wheel balancing, Tire changing and repairs, Rear swing arm, Rear monoshock (DeCarbon Monocross System), Rear suspension (monocross type)

BRAKES
Front brake, Rear brake, Front brake cable, Rear brake pedal assembly

FRAME AND REPAINTING
Kickstand (sidestand), Footpegs, Frame

SUPPLEMENT, 1981 AND LATER SERVICE INFORMATION

INDEX OF TOPICS

WIRING DIAGRAMS