Yamaha YZ50-80 Monoshock Motorcycle (1978-1990) 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 MOTORCYCLE MANUAL IS 368 PAGES.

• QUICK REFERENCE DATA
• CHAPTER ONE / GENERAL INFORMATION
• CHAPTER TWO / TROUBLESHOOTINGTWO-STROKE PRESSURE TESTING
• CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UPPRE-CHECKS / TIRES AND WHEELS / LUBRICANTS / CLEANING SOLVENT / ENGINE LUBRICATION / PERIODIC LUBRICATION / PERIODIC MAINTENANCE / ENGINE TUNE-UP / STORAGE
• CHAPTER FOUR / ENGINE TOP ENDENGINE PRINCIPLES / ENGINE LUBRICATION / ENGINE COOLING / CLEANLINESS / SERVICING ENGINE IN FRAME / CYLINDER HEAD / CYLINDER / PISTON, WRIST PIN AND PISTON RINGS / BREAK-IN PROCEDURE / REED VALVE ASSEMBLY
• CHAPTER FIVE / ENGINE LOWER ENDSERVICING ENGINE IN FRAME / ENGINE REMOVAL INSTALLATION / CRANKCASE AND CRANKSHAFT
• CHAPTER SIX / CLUTCH, EXTERNAL SHIFT MECHANISM AND KICKSTARTERCLUTCH COVER / CLUTCH / PRIMARY DRIVE PINION GEAR / CLUTCH CABLE / CLUTCH RELEASE MECHANISM / EXTERNAL SHIFT MECHANISM / KICKSTARTER (1978-1980) / KICKSTARTER (1981-ON)
• CHAPTER SEVEN / TRANSMISSION AND INTERNAL SHIFT MECHANISMTRANSMISSION OPERATION / TRANSMISSION OVERHAUL (5-SPEED) / TRANSMISSION OVERHAUL (1979-1980 6-SPEED) / TRANSMISSION OVERHAUL (1981-ON 6-SPEED) / INTERNAL SHIFT MECHANISM (1978-1980) / INTERNAL SHIFT MECHANISM (1981-ON)
• CHAPTER EIGHT / FUEL AND EXHAUST SYSTEMSCARBURETOR OPERATION / CARBURETOR SERVICE (1978-1982) / CARBURETOR ADJUSTMENTS / FUEL SHUTOFF VALVE / FUEL TANK / FUEL FILTER / YAMAHA ENERGY INDUCTION SYSTEM (YEIS) / EXHAUST SYSTEM / EXHAUST SYSTEM REPAIR
• CHAPTER NINE / IGNITION SYSTEMCONTACT BREAKER POINT IGNITION (YZ50) / CAPACITOR DISCHARGE IGNITION / MAGNETO (OUTER ROTOR TYPE) / MAGNETO (INNER ROTOR TYPE) / STATOR COIL TESTING (ALL MODELS) / CAPACITOR DISCHARGE IGNITION UNIT / IGNITION COIL / SPARK PLUG / ENGINE KILL SWITCH
• CHAPTER TEN / LIQUID COOLING SYSTEMCOOLING SYSTEM INSPECTION / RADIATOR / WATER PUMP
• CHAPTER ELEVEN / FRONT SUSPENSION AND STEERINGFRONT WHEEL / FRONT HUB / WHEELS / TIRE CHANGING / TIRE REPAIRS / HANDLEBAR / STEERING HEAD AND STEM (1978-1981 AND 1983) / STEERING HEAD AND STEM (1982 YZ80) / STEERING HEAD AND STEM (1984-ON) / FRONT FORK (YZ50, YZ60 AND 1978-1982 YZ80) / FRONT FORK (1983-ON)
• CHAPTER TWELVE / REAR SUSPENSIONREAR WHEEL / REAR HUB / DRIVEN SPROCKET / DRIVE CHAIN / REAR SUSPENSION (DECARBON MONOSHOCK SYSTEM) / SWING ARM (1978-1982) / SWING ARM AND RELAY ARM (1983-ON) / REAR SUSPENSION BUSHING AND BEARING REPLACEMENT (ALL MODELS)
• CHAPTER THIRTEEN / BRAKESDRUM BRAKES / FRONT BRAKE CABLE REPLACEMENT / FRONT DISC BRAKE (1986-ON) / FRONT BRAKE PAD REPLACEMENT / FRONT CALIPER / FRONT MASTER CYLINDER / FRONT BRAKE HOSE REPLACEMENT / FRONT BRAKE DISC / BLEEDING THE SYSTEM
• CHAPTER FOURTEEN / SUSPENSION ADJUSTMENTYAMAHA FACTORY ACCESSORIES / SUSPENSION TRAVEL MEASUREMENT / FRONT FORKS / REAR SHOCK ABSORBER (1978-1981) / REAR SHOCK ABSORBER (1982-ON)
• INDEX
• WIRING DIAGRAMS
• MODELS COVERED:1980 YAMAHA YZ501981 1982 YAMAHA YZ601978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 YAMAHA YZ80YZ 50 60 80
• CLYMER MANUALS YAMAHA YZ50 MANUALCLYMER MANUALS YAMAHA YZ60 MANUALCLYMER MANUALS YAMAHA YZ80 MANUAL
• YZ50 (1980)YZ60 (1981-1982)YZ80 (1978-1990)