YZ50 1980, YZ60 1981-82, YZ80 1978-1990

Beschrijving

Nummer M393, Engelse taal.
Uitvoerige beschrijvingen voor onderhoud of reparaties. Omvat de volgende modellen:
 YZ50 (1980),  YZ60 (1981-1982),  YZ80 (1978-1990)
QUICK REFERENCE DATA CHAPTER ONE / GENERAL INFORMATION CHAPTER TWO / TROUBLESHOOTING Two-stroke pressure testingCHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP Pre-checks / Tires and wheels / Lubricants / Cleaning solvent / Engine lubrication / Periodic lubrication / Periodic maintenance / Engine tune-up / StorageCHAPTER 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 assemblyCHAPTER FIVE / ENGINE LOWER END Servicing engine in frame / Engine removal installation / Crankcase and crankshaftCHAPTER 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 repairCHAPTER 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 switchCHAPTER TEN / LIQUID COOLING SYSTEM Cooling system inspection / Radiator / Water pumpCHAPTER 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 systemCHAPTER FOURTEEN / SUSPENSION ADJUSTMENT Yamaha factory accessories / Suspension travel measurement / Front forks / Rear shock absorber (1978-1981) / Rear shock absorber (1982-on) INDEX WIRING DIAGRAMS