The 2010 KLX250S is a versatile dual-sport motorcycle designed for riders who demand capability on varied terrain, from city streets to off-road trails. Building on a strong lineage of off-road motorcycles, this model offers a lightweight and agile platform, powered by a liquid-cooled, 4-stroke, 249 cc engine with digital fuel injection. Its design philosophy emphasizes a balance of performance and rider-friendly handling, making it a popular choice for both commuting and adventure riding. The KLX250S is engineered for reliability and ease of use, embodying a commitment to quality in the dual-sport segment. This comprehensive English-language service manual provides in-depth guidance for the maintenance, repair, and restoration of your 2010 KLX250S. It covers all major systems, including the engine, fuel system, transmission, chassis, electrical system, brakes, and cooling system, offering detailed procedures for everything from routine oil changes and filter replacements to complete engine and transmission rebuilds. Additionally, the manual includes troubleshooting charts for common issues, technical specifications, and safety guidelines, empowering owners and technicians to effectively maintain and service the motorcycle, ensuring its optimal performance and longevity.