Yamaha YZ100-490 Monoshock Motorcycle (1976-1984) Service Repair Manual Description 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. Contents This Yamaha vintage motorcycle manual is 352 pages. QUICK REFERENCE DATA CHAPTER ONE / 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 / Specifications CHAPTER TWO / TROUBLESHOOTING Operating requirements / Troubleshooting instruments / Emergency troubleshooting / Engine starting / Engine performance / Engine noises / Excessive vibration / Two-stroke pressure test / 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 / Front fork air pressure / Periodic maintenance / Monoshock adjustment / Drive chain adjustment / Clutch adjustment / Throttle adjustment / Air cleaner service / Engine tune-up / Cylinder head nuts torque / Spark plug / Magneto / 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 / Magneto / Reed valve assembly / 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-outer rotor (type I) / Magneto-inner rotor (type II III IV) / Ignition coil / Engine kill switch / 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 repairs / Rear swing arm / Rear monoshock (DeCarbon Monocross System) / Rear suspension (monocross type) / Specifications CHAPTER TEN / BRAKES Front brake / Rear brake / Front brake cable / Rear brake pedal assembly / Specifications CHAPTER EL...