Yamaha IT125-490 Motorcycle (1976-1986) Service Repair Manual

This item will be dispatched directly by Haynes and will arrive separately from any other parts ordered.

Clymer motorcycle repair manuals are written specifically for the do-it-yourself enthusiast. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. The most important tool in your tool box may be your Clymer manual, get one today. Every Clymer manual contains hundreds of original photographs and illustrations developed from a complete disassembly and assembly of a motorcycle. This, in addition to extensive research, allows Clymer to achieve an unmatched level of detail, accuracy and clarity. The step-by-step instructions and two-column text with large print are user-friendly. Bold figure numbers make it easy to quickly match instructions with illustrations and photos. Thumb-tabbed chapters, numbered table of contents and an extensive index make it possible to locate the desired section quickly.

What's Covered

THIS YAMAHA VINTAGE MANUAL IS 352 PAGES.

QUICK REFERENCE DATA

• CHAPTER ONE / GENERAL INFORMATION
• MANUAL ORGANIZATION / SERVICE HINTS / TORQUE SPECIFICATIONS / SAFETY FIRST / SPECIAL TIPS / PARTS REPLACEMENT / EXPENDABLE SUPPLIES / WHAT YEAR IS IT? / SERIAL NUMBERS / BASIC HAND TOOLS / TUNE-UP AND TROUBLESHOOTING TOOLS / FASTENERS / MECHANIC'S TIPS / SPECIFICATIONS

• CHAPTER TWO / 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 / SPECIFICATIONS

• CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
• PRE-CHECKS / TIRES AND WHEELS / LUBRICANTS / CLEANING SOLVENT / PERIODIC LUBRICATION / ENGINE LUBRICATION / TRANSMISSION OIL CHECKING AND CHANGING / FRONT FORK OIL CHANGE / DRIVE CHAIN LUBRICATION AND ADJUSTMENT / PERIODIC MAINTENANCE / MONOSHOCK ADJUSTMENT / CLUTCH MECHANISM AND CABLE ADJUSTMENT / THROTTLE ADJUSTMENT / AIR CLEANER SERVICE / ENGINE TUNE-UP / CYLINDER HEAD NUTS TORQUE / SPARK PLUG / IGNITION TIMING / IDLE SPEED ADJUSTMENT / DECARBONIZING / ENGINE AND EXHAUST SYSTEM / STORAGE / SPECIFICATIONS

• CHAPTER FOUR / ENGINE
• ENGINE PRINCIPLES / ENGINE LUBRICATION / ENGINE COOLING / SERVICING ENGINE IN FRAME / ENGINE / CYLINDER HEAD / CYLINDER / PISTON, PISTON PIN, AND PISTON RINGS / BREAK-IN PROCEDURE / MAGNETO / REED VALVE ASSEMBLY / COMPRESSION RELEASE (IT400C ONLY) / CRANKCASE AND CRANKSHAFT / KICKSTARTER / SERVICE AND ADJUSTMENT / SPECIFICATIONS

• CHAPTER FIVE / CLUTCH AND TRANSMISSION
• CLUTCH / CLUTCH CABLE / CLUTCH RELEASE (PUSH LEVER) MECHANISM / EXTERNAL SHIFT MECHANISM / TRANSMISSION AND INTERNAL SHIFT MECHANISM / SPECIFICATIONS

• CHAPTER SIX / 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 / SPECIFICATIONS

• CHAPTER SEVEN / ELECTRICAL SYSTEM
• CAPACITOR DISCHARGE IGNITION / SPARK PLUG / MAGNETO / IGNITION COIL / ENGINE KILL SWITCH / LIGHTING SYSTEM / SPEEDOMETER HOUSING / WIRING DIAGRAMS / SPECIFICATIONS

• CHAPTER EIGHT / FRONT SUSPENSION AND STEERING
• FRONT WHEEL / FRONT HUB / WHEELS / TIRE CHANGING / TIRE REPAIRS / HANDLEBAR / STEERING HEAD / FRONT FORK / SPECIFICATIONS

• CHAPTER NINE / REAR SUSPENSION
• REAR WHEEL / REAR HUB / DRIVE SPROCKET / DRIVE CHAIN / WHEEL BALANCING / TIRE CHANGING AND TIRE REPAIRS / REAR SWING ARM / REAR SUSPENSION (DECARBON MONOCROSS SYSTEM) / REAR SUSPENSION (MONOCROSS TYPE) / SPECIFICATIONS

• CHAPTER TEN / BRAKES
• FRONT BRAKE / REAR BRAKE / FRONT BRAKE CABLE / REAR BRAKE PEDAL ASSEMBLY / SPECIFICATIONS

• CHAPTER ELEVEN / FRAME AND REPAINTING
• KICKSTAND (SIDESTAND) / FOOTPEGS / FRAME / SPECIFICATIONS

  SUPPLEMENT / 1981 AND LATER SERVICE INFORMATION

  INDEX

  WIRING DIAGRAMS

  MODELS COVERED:

• 1980 1981 YAMAHA IT125
• 1977 1978 1979 1980 1981 1982 1983 YAMAHA IT175
• 1984 1985 1986 YAMAHA IT200
• 1977 1978 1979 1980 1981 1982 1983 YAMAHA IT250
• 1976 1977 1978 1979 YAMAHA IT400
• 1980 YAMAHA IT425
• 1981 1982 YAMAHA IT465
• 1983 1984 YAMAHA IT490

  CLYMER MANUALS YAMAHA IT125 MANUAL

• CLYMER MANUALS YAMAHA IT175 MANUAL
• CLYMER MANUALS YAMAHA IT200 MANUAL
• CLYMER MANUALS YAMAHA IT250 MANUAL
• CLYMER MANUALS YAMAHA IT400 MANUAL
• CLYMER MANUALS YAMAHA IT425 MANUAL
• CLYMER MANUALS YAMAHA IT465 MANUAL
• CLYMER MANUALS YAMAHA IT490 MANUAL

  IT125 (1980-1981)

• IT175 (1977-1983)
• IT200 (1984-1986)
• IT250 (1977-1983)
• IT400 (1976-1979)
• IT425 (1980)
• IT465 (1981-1982)
• IT490 (1983-1984)