Clymer Yamaha Manual
Models Covered:
YZ125 (1985-1987)
YZ250 (1985-1987)
YZ490 (1985-1990)
This Yamaha motorcycle manual is 272 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 / Clutch / Transmission / Brakes / Water-cooling system (YZ125 and YZ250) / Front suspension and steering / Ignition system / Specifications
CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP Pre-checks / Tires and wheels / Lubricants / Cleaning solvent / Periodic lubrication / Engine lubrication / Clutch/Transmission oil checking and changing / Front fork oil change / Front fork air pressure / Periodic maintenance / Drive chain adjustment / Clutch adjustment / Fuel filter and shutoff valve / Coolant change / Air cleaner service / Engine tune-up / Cylinder head nuts torque / Spark plug / Ignition timing / Carburetor pilot screw and idle speed adjustment / Decarbonizing engine and exhaust system / Storage / Specifications
CHAPTER FOUR / ENGINE Engine principles / Servicing engine in frame / Engine removal installation / Cylinder head / Cylinder / Piston, wrist pin and piston rings / Break-in procedure / Magneto / Reed valve assembly / Crankcase and crankshaft / Kickstarter / Service and adjustment / Specifications
CHAPTER FIVE / CLUTCH AND TRANSMISSION Clutch / Clutch cable / External shift mechanism / Primary drive gear / Drive sprocket / Transmission / Specifications
CHAPTER SIX / FUEL, POWER VALVE AND EXHAUST SYSTEMS Air cleaner / Carburetor operation / Carburetor service / Carburetor adjustments / Fuel shutoff valve / Fuel tank / Energy induction system (YZ490) / Power valve induction system / Exhaust system / Exhaust system decarbonizing / Exhaust system repair / Specifications
CHAPTER SEVEN / IGNITION SYSTEM Capacitor discharge ignition / Magneto (outer rotor) / Magneto (inner rotor) / Magneto coil testing (all models) / Capacitor discharge ignition unit / Ignition coil / Spark plug / Engine kill switch / Wiring diagrams / Specifications
CHAPTER EIGHT / COOLING SYTEM Cooling system inspection / Radiator / Water pump / Specifications
CAPTER NINE / FRONT SUSPENSION AND STEERING Front wheel / Front hub / Wheels / Tire changing / Tire repairs / Handlebar / Steering head / Front fork / Specifications
CHAPTER TEN / REAR SUSPENSION Rear wheel / Rear hub / Driven sprocket / Drive chain / Tire changing and tire repairs / Spoke and rim replacement / Rear swing arm / Rear suspension (Decarbon Monocross System) / Specifications
CHAPTER ELEVEN / BRAKES Front disc brake / Front brake pad / Front caliper / Front master cylinder / Front brake hose / Front brake disc / Bleeding the system / Rear brake / Rear brake pedal assembly / Specifications
CHAPTER TWELVE / SUSPENSION ADJUSTMENT Yamaha factory accessories / Front fork / Rear shock absorber / Specifications
INDEX WIRING DIAGRAMS
Looking for other products?
COMBINED SHIPPING DISCOUNTS: For multiple quantities of the same item, just change the quantity in the box next to "Buy It Now" and eBay will automatically calculate the discount. For combined orders with different items, use "Buy it Now" and then "continue shopping" on each item and then prior to completing the payment, use the "request a total from seller" link in checkout and we will adjust the shipping total and send you a new invoice. If multiple item numbers are purchased and paid without using "request a total from seller", a combined shipping discount will not be offered in a refund form. Multiple items must be paid in a single payment in order to qualify for a shipping discount.
INTERNATIONAL BUYERS: Customs fees, brokerage fees, taxes, or duties are the buyer's responsibility and are not included in the cost of shipping listed on the eBay ad. Item values will be stated as the amount paid for that item (excluding shipping). We can not mark items as "gifts" or change the value.
INTERNATIONAL SHIPPING/TRACKING: We ship USPS (United States Postal Service) First Class Mail International, Priority Mail International and Express Mail International. Please be aware that First Class International Mail and Priority Mail Small Flat Rate Boxes and Envelopes do not have tracking capability. Please allow up to 60 days for delivery.