This manual covers the WR250 and CR250 models from the 2004 production year. There is a long legacy in off-road motorsports, renowned for performance and innovation. The WR (Wide Ratio) and CR (Close Ratio) series represent competitive motocross and enduro offerings, often sharing core components but tuned for different applications. These motorcycles are designed for demanding off-road use, providing riders with a powerful and agile experience. This comprehensive service repair manual in English provides detailed information for maintaining and repairing your WR250 or CR250. It covers engine teardown and rebuild, frame and suspension systems, brakes, electrical systems, and the engine cooling system, including specific coverage for the HTS exhaust valve. The manual includes scheduled and general maintenance procedures, a comprehensive troubleshooting guide with remedies, and detailed adjustment procedures for various components. With hundreds of illustrations, diagrams, torque specifications, and lists of special tools, this manual is an invaluable resource for both do-it-yourself enthusiasts and experienced mechanics.