This manual covers the WR400F and WR426F models, produced between 2000 and 2002, representing the first generation of this highly capable competition enduro motorcycle. These models are renowned for their robust 4-stroke, liquid-cooled engines, optimized for strong torque delivery crucial for off-road riding. Featuring advanced, adjustable suspension systems and an established reputation for durability and reliability, these motorcycles are built to perform in demanding enduro and motocross environments. Their design prioritizes rider control and maneuverability, making them a favored choice for off-road enthusiasts and competitors.

This comprehensive Service Repair Manual is designed to provide detailed guidance on all systems, maintenance procedures, and repair processes for your WR400F/WR426F. It includes in-depth coverage of engine overhauls, transmission servicing, chassis components, electrical systems, and bodywork. Within its pages, you will find step-by-step disassembly and reassembly instructions, routine maintenance schedules, troubleshooting guides for common issues, and technical specifications. The manual's extensive illustrations and diagrams aid in understanding complex procedures, empowering both owners and professional technicians to maintain and restore the vehicle to optimal performance and ensure its longevity.