The Cyclepedia Yamaha YZ and WR 400, 426, and 450 printed motorcycle service manual features detailed black and white photographs and wiring diagrams, complete specifications with step-by-step procedures performed and written by a veteran Yamaha dealer trained motorcycle technician. The Yamaha YZ WR 400, 426, 450F motorcycle manual covers the following off-road and motocross motorcycles: 1998 Yamaha YZ400FK 1998 Yamaha WR400FK 1999 Yamaha YZ400FL 1999 Yamaha WR400FL 2000 Yamaha YZ426FM 2000 Yamaha WR400FM 2001 Yamaha YZ426FN 2001 Yamaha WR426FN 2002 Yamaha YZ426FP 2002 Yamaha WR426FP 2003 Yamaha YZ450FR 2003 Yamaha WR450FR 2004 Yamaha YZ450FS 2004 Yamaha WR450FS 2005 Yamaha YZ450FT 2005 Yamaha WR450FT Table of Contents Periodic Maintenance - Periodic Maintenance Chart, Clutch Cable Adjustment, Throttle Free Play, Engine Idle Speed, Drive Chain Adjustment, Hot Start Lever, Clutch Replacement, Engine Oil, Spark Plug, Compression Check, Air Filter Servicing, Transmission Oil, Tires, Brake Bleeding, Valve Clearance Cooling System - Cooling System Specifications, Coolant, Radiators, Water Pump Quick Reference YZ450F Specifications WR450F Specifications YZ426F Specifications WR426F Specifications YZ400F Specifications WR400F Specifications VIN and Engine Number Location General Torque Specifications External Components Side Covers Seat Fuel Tank Brake Pedal Brake Pedal Front Number Plate Handlebar Sub Frame Front Fender Rear Fender Exhaust System Engine Engine Specifications Balancer Cylinder Head Cover Cylinder Head Camshaft Inspection Camshaft Removal Camshaft Installation Kick Starter Cylinder and Piston Clutch Left Engine Components Right Engine Components Engine Removal Engine Installation Crankshaft Crankcase Splitting Crankcase Assembly Transmission Removal Transmission Assembly Crankcase Assembly Engine Installation Final Drive Final Drive Specifications Drive Chain Engine Sprocket Rear Wheel Sprocket Front Brake Brake Disc Front Brake Specifications Front Brake Caliper Front Brake Replacement Rear Brake Rear Brake Caliper Rear Brake Replacement Rear Brake Specifications Wheels Wheel Specifications Front Wheel Rear Wheel Bearing Replacement Steering Removal Bearing Replacement Installation Front Suspension - Fork Removal and Installation, Front Fork Assembly, Front Fork Disassembly, Fork Seal Replacement, Front Fork Specifications Rear Suspension - Shock Removal and Installation, Specifications, Swing Arm Electrical System Electrical Specifications Ignition System Headlight Switches Wiring Diagrams