The WR426F and WR400F models represent significant milestones in off-road motorcycle heritage. The WR400F, a pioneering four-stroke in its segment, established a strong foundation, while the WR426F, an evolution of the 400, offered increased displacement and enhanced performance for the 2002 model year. These motorcycles were engineered for competitive off-road use, including motocross and enduro riding, competing directly with models from major manufacturers. Key features include a robust 4-stroke, liquid-cooled, DOHC, 5-valve single-cylinder engine, a 5-speed manual transmission, and hydraulic disc brakes front and rear, all housed within a rigid steel frame designed for durability and responsive handling.
This comprehensive service repair manual in English provides essential information for the maintenance, repair, and troubleshooting of the WR426F and WR400F. It covers a wide array of systems, including general information, lubrication, fuel system, engine mechanicals, transmission, chassis, suspension, brakes, and the electrical system. Detailed procedures for disassembly, reassembly, maintenance, and adjustment are included, alongside extensive troubleshooting guidance. The manual is suitable for experienced mechanics and enthusiasts aiming to ensure the optimal performance and longevity of these off-road machines.
2002 Yamaha WR426F and WR400F Service Manual Instant Download
Contents:
General Information
Lubrication
Inspection and Adjustment
Fuel System
Engine Removal/Installation
Cylinder Head/Valve
Cylinder/Piston
Clutch
Gearshift Linkage
Sub transmission
Crankcase
Transmission
Crankshaft/Primary shaft
Front Wheel/Suspension
Rear Wheel/Suspension
Hydraulic Brake
Battery/Charging System
Ignition System
Electric Starter
Switches
Technical Features
Troubleshooting
And Much More.
2002 Yamaha WR426F and WR400F Service Manual Instant Download
Contents:
General Information
Lubrication
Inspection and Adjustment
Fuel System
Engine Removal/Installation
Cylinder Head/Valve
Cylinder/Piston
Clutch
Gearshift Linkage
Sub transmission
Crankcase
Transmission
Crankshaft/Primary shaft
Front Wheel/Suspension
Rear Wheel/Suspension
Hydraulic Brake
Battery/Charging System
Ignition System
Electric Starter
Switches
Technical Features
Troubleshooting
And Much More.
