This manual covers the Yamaha WR250 and WR250F models produced between 2000 and 2009. The WR250 series is Yamaha's dedicated off-road enduro motorcycle, celebrated for its potent liquid-cooled, four-stroke engine and capable chassis designed for competition and trail riding. Known for its engineering quality and reliability, the WR250 offers a performance-oriented experience. This factory service workshop repair manual provides comprehensive information for all styles of the Enduro model, ensuring owners and technicians can maintain and repair this robust machine effectively. The scope of this 304-page English-language manual is extensive, offering factory-level detail for all major systems including the engine, transmission, fuel, electrical, suspension, brakes, cooling, chassis, and bodywork. It provides step-by-step procedures for routine maintenance, complex repairs, and component rebuilds, supported by hundreds of detailed illustrations, drawings, and photos. Troubleshooting guides and diagnostic procedures are also included to address common and less common issues. This manual is an invaluable resource for do-it-yourself enthusiasts and professional mechanics alike, enabling efficient and cost-effective upkeep and repair of the Yamaha WR250.