Clymer
Yamaha Moto-4 & Big Bear ATV 1987-2004 Clymer Online Manual
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Description
This Online Repair Manual is an essential digital resource for anyone looking to service or repair their ATV at home. Regular maintenance not only helps to keep your off roader running smoothly, but it also enhances safety and helps you avoid breakdowns and disruption.
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Table of Contents
This Yamaha ATV manual is 680 pages.
QUICK REFERENCE DATA
CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Safety first / Service hints / Washing the vehicle / Special tips / Torque specifications / Fasteners / Lubricants / RTV gasket sealant / Gasket remover / Threadlocking compound / Expendable supplies / Serial numbers / Warning and information labels / Basic hand tools / Precision measuring tools / Test equipment / Special tools / Fabricating tools / Mechanic's tips / Bearing replacement / Seals / Riding safety / Off Road rules / Storage / Specifications
CHAPTER TWO / TROUBLESHOOTING
Operating requirements / Troubleshooting instruments / Starting the engine / Starting difficulties / Engine starting troubles / Engine is difficult to start / Poor idle speed performance / poor medium to high speed performance / Starting system / Charging system / Ignition system / Fuel system / Engine overheating (1987-1998 2-wheel drive and 1987-1997 4-wheel drive models) / Engine noises / Engine leak down test / Clutch / Transmission / Drive train noise / Handling / Frame noise / Brakes
CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-ride check list / Maintenance service schedule intervals / Periodic lubrication / Engine oil and filter change / Front differential gearcase oil change / Rear final drive gearcase oil change / Control cable lubrication / Non-schedule lubrication / Periodic maintenance / Non-scheduled maintenance / Tune-up / Air filter / Valve clearance / Cylinder compression / Spark plug / Ignition timing / Pilot air screw adjustment / Idle speed adjustment / Storage /Specifications
CHAPTER FOUR / ENGINE TOP END
Cylinder head / Decompression camshaft / Camshaft and rocker arms / Camshaft chain / Chain guides / Valves and components / Cylinder block / Piston and rings /Specifications
CHAPTER FIVE / ENGINE BOTTOM END
Removal installation / Middle drive gear / Transfer gear assembly / Balancer gear and oil pump drive gear assembly / Oil pump / Internal oil pipe / External oil pipe / Oil cooler / Magneto stator and stator housing / Magneto rotor and starter clutch / Crankcase and crankshaft / Recoil starter / Break-in /Specifications
CHAPTER SIX / CLUTCH AND EXTERNAL SHIFT MECHANISM
Clutch cover / Clutch release lever mechanism / One-way clutch check / External shift mechanism /Specifications
CHAPTER SEVEN / TRANSMISSION, SELECT LEVER AND INTERNAL SHIFT MECHANISM
Transmission reverse system identification / Middle drive shaft / Reverse gear and shaft / High/low combination gear assembly / Internal shift mechanism / Transmission range select lever /Specifications
CHAPTER EIGHT / FUEL AND EXHAUST SYSTEMS
Carburetor / Carburetor adjustments / Throttle cable / Throttle lever housing / Fuel tank / Fuel shutoff valve / Air filter air box / Exhaust system /Specifications
CHAPTER NINE / ELECTRICAL SYSTEM
Charging system / Stator charging coil / Voltage regulator/rectifier / Capacitor discharge ignition / Ignition coil / CDI magneto (stator source and pickup coils) / Starting system / Starter relay / Lighting system / Indicator light system / Meter / Switches / Relays / Fuse / Circuit breaker / Wiring diagrams /Specifications
CHAPTER TEN / FRONT SUSPENSION AND STEERING
Front wheel / Front hub brake drum / Front spindle / Front suspension / Shock absorber / Steering knuckle / Control arm / Handlebar / Tie rods / Steering shaft / Tires and wheels /Specifications
CHAPTER ELEVEN / FRONT DRIVE MECHANISM FOUR-WHEEL DRIVE
Front axle / Front differential gearcase / Front drive shaft /Specifications
CHAPTER TWELVE / REAR SUSPENSION
Rear wheels / Rear hub / Brake drum / Rear axle / Final drive unit and short drive shaft / Shock absorber / Swing arm /Specifications
CHAPTER THIRTEEN / BRAKES
Front brake / Front drum brake / Front master cylinder / Rear brake disc / Rear drum brake hub / Front brake hose / Rear brake pedal / Brake bleeding /Specifications
CHAPTER FOURTEEN / BODY
Seat / Front guard / Front bumper / Front carrier/rack / Rear carrier/rack / Rear guard / Fuel tank cover assembly / Front fender / Rear fender / Foot rests /Specifications
SUPPLEMENT / 1999-ON 2-WHEEL DRIVE, 1998-ON 4-WHEEL DRIVE MODEL SERVICE INFORMATION
INDEX
WIRING DIAGRAMS
Models covered:
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Yamaha YFM350 2-WD YFM 350 2 two wheel drive
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Yamaha YFM350FW 4-WD YFM 350FW YFM 350 FW four wheel drive 4
2000 2001 2002 2003 2004 Yamaha YFM400 2-WD YFM 400 2 two wheel drive
2000 2001 2002 2003 2004 Yamaha YFM400FW 4-WD YFM 400FW YFM 400 FW Four wheel drive 4
Clymer Yamaha YFM350 Moto-4 Two Wheel Drive 2X4 Manual
Clymer Yamaha YFM350FW Moto-4 Four Wheel Drive 4X4 Manual
Clymer Yamaha YFM400 Big Bear Two Wheel Drive 2X4 Manual
Clymer Yamaha YFM400FW Big Bear Four Wheel Drive 4X4 Manual
YFM350 Moto-4 2-WD (1987-1999)
YFM350FW Moto-4 4-WD (1987-1999)
YFM400 Big Bear 2-WD (2000-2004)
YFM400FW Big Bear 4-WD (2000-2004)
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Excellent Service, Excellent Manual
Great service, manual arrived quickly through Aus. Post. Very extensive. Can do basic service and a bit more with My limited experience. Suits the professionals too, I assume!
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Digital version a great bonus
Being able to have access to a manual on my phone or laptop is extremely handy, so being able to get that as well as the hard copy for the same price is great. It turns out my bike came with an official manual, but this still has useful stuff for on the spot repairs.
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Having recently purchased a quad bike and wanting to know how to repair and maintain it, I was pleasantly surprised to find a company that provided a manual and online version for the exact make , model and series. Couldn’t have asked for anything better.
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