Yamaha YZ & WR 4-stroke Motocross Bikes (98 - 08) Haynes Manual Introduction and Pre-ride checks Chapter 1: Routine Maintenance and servicing Chapter 2: Engine, clutch and transmission Chapter 3: Cooling system Chapter 4: Fuel and exhaust systems Chapter 5: Ignition and electrical systems Chapter 6: Steering, suspension and Final drive Chapter 7: Brakes, Wheels and Tires Chapter 8: Frame and bodywork Chapter 9: Wiring Diagrams in color Reference Section with Specs and troubleshooting