Yamaha YZ50 (1980) Clymer
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What's Included
What's Covered
This Yamaha Motorcycle Manual is 368 pages.
QUICK REFERENCE DATA
CHAPTER ONE / GENERAL INFORMATION
CHAPTER TWO / TROUBLESHOOTING
Two-stroke pressure testing
CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-checks / Tires and wheels / Lubricants / Cleaning solvent / Engine lubrication / Periodic lubrication / Periodic maintenance / Engine tune-up / Storage
CHAPTER FOUR / ENGINE TOP END
Engine 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 END
Servicing engine in frame / Engine removal installation / Crankcase and crankshaft
CHAPTER SIX / CLUTCH, EXTERNAL SHIFT MECHANISM AND KICKSTARTER
Clutch 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 MECHANISM
Transmission 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 SYSTEMS
Carburetor 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 SYSTEM
Contact 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 SYSTEM
Cooling system inspection / Radiator / Water pump
CHAPTER ELEVEN / FRONT SUSPENSION AND STEERING
Front 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 SUSPENSION
Rear 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 / BRAKES
Drum 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 ADJUSTMENT
Yamaha factory accessories / Suspension travel measurement / Front forks / Rear shock absorber (1978-1981) / Rear shock absorber (1982-on)
INDEX
WIRING DIAGRAMS
Models covered:
1980 Yamaha YZ50
1981 1982 Yamaha YZ60
1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 Yamaha YZ80
YZ 50 60 80
Clymer Manuals Yamaha YZ50 Manual
Clymer Manuals Yamaha YZ60 Manual
Clymer Manuals Yamaha YZ80 Manual
YZ50 (1980)
YZ60 (1981-1982)
YZ80 (1978-1990)