PRINTED BOOK 

1985 - 2008 Yamaha YFM80 MOTO4 BADGER RAPTOR Service Repair Manual

The following Yamaha ATV models are covered:

  • YFM80 Moto-4 (1985-1988)
  • YFM80 Badger (1992-2001)
  • YFM80 Raptor (2002-2008)

Every Clymer contains hundreds of original photographs and illustrations developed from a complete disassembly and assembly of the ATV. This, in addition to extensive research, allows Clymer to achieve an un-matched level of detail, accuracy & 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 extensive index make it possible to locate the desired section quickly.

This manual includes a Quick Reference Data section with frequently used specifications and the typical Table of Contents.
QUICK REFERENCE DATA

CHAPTER ONE / GENERAL INFORMATION
Manual organization / Warnings, cautions and notes / Safety / Serial numbers / Fasteners / Shop supplies / Basic tools / Precision measuring tools / Decimal place values / Electrical system fundamentals / Special tools / Basic service methods / Storage / Specifications

CHAPTER TWO / TROUBLESHOOTING
Operating requirements / Starting the engine / Engine will not start / Engine is difficult to start / Poor idle speed performance / Poor medium to high speed performance / Starting system / Charging system / Ignition system / Ignition system diagnosis / Fuel system / Engine overheating / Engine / Engine noises / Engine leak down test / Clutch / Transmission / Handling / Frame noise / Brakes

CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-ride checklist / Periodic lubrication / Engine oil change / Oil strainer screen / Final drive oil change / Control cable lubrication / Air filter / Cam chain adjustment / Valve clearance / Compression test / Spark plug / Spark arrestor / Ignition timing / Idle speed / Throttle lever adjustment / Speed limiter / Clutch / Chassis maintenance / Specifications

CHAPTER FOUR / ENGINE TOP END
Engine cooling / Engine removal / Intake manifold / Cylinder head / Cylinder / Rocker arm and camshaft / Valves and valve components / Piston / Piston rings / Specifications

CHAPTER FIVE / ENGINE LOWER END
Engine break-in / Engine removal / Engine installation / Oil pump and oil strainer / CDI magneto / Middle driven gear / Crankcase / Driven gear shim selection / Transmission / Crankshaft / Specifications

CHAPTER SIX / CLUTCH AND DRIVE GEAR
Clutch / Drive gear and starter clutch / Specifications

CHAPTER SEVEN / TRANSMISSION AND SHIFTER
Transmission / Shift shaft and stopper lever / Specifications

CHAPTER EIGHT / FUEL AND EXHAUST SYSTEMS
Carburetor / Carburetor adjustments / Fuel tank / Exhaust / Specifications

CHAPTER NINE / ELECTRICAL SYSTEM
Electrical component replacement / Starting system / Ignition system / Ignition coil test / Pickup coil test / Source coil test / Main switch test / Engine top switch test / Charging system / Specifications

CHAPTER TEN / FRONT SUSPENSION, WHEELS AND TIRES
Front wheel / Front wheel bearings / Front shock absorber and lower arm / Wheel alignment / Handlebar / Steering shaft / Steering knuckle / Tie rod / Tires and wheel / Specifications

CHAPTER ELEVEN / REAR AXLE, REAR SUSPENSION AND FINAL DRIVE
Rear wheel and wheel hub / Rear shock absorber / Rear swing arm and drive shaft / Final drive/rear hub / Final drive and axle inspection / Specifications

CHAPTER TWELVE / BRAKES
Front brake lever free play / Front brake / Rear brake / Specifications

CHAPTER THIRTEEN / BODY AND CHASSIS
Front fender / Front bumper / Rear fender / Swing arm guard / Specifications

INDEX

COLOR WIRING DIAGRAMS

SPECIFICATIONS: