This manual covers the 2010 TE450, a dual-sport motorcycle renowned for its off-road prowess and street legality. Building on an extensive history in enduro racing, the TE450 offers a robust single-cylinder, 4-stroke engine with a 449.7 cc displacement, featuring electronic fuel injection and a 6-speed manual transmission. With a dry weight of approximately 116 kg, this model is engineered for performance and reliability in diverse riding conditions. Its design emphasizes functionality, incorporating a liquid-cooled engine and a hydraulically operated wet multi-plate clutch, making it a capable machine for both demanding trails and everyday travel. This comprehensive factory service repair manual, written in English, provides detailed guidance for all maintenance and repair procedures. It covers a wide array of systems, including the fuel system, cooling system, engine top end, clutch, lubrication system, transmission, wheels, tires, brakes, suspension, steering, frame, and electrical system. The manual includes step-by-step instructions, detailed illustrations, diagrams, and photos, along with advanced troubleshooting techniques, diagnostic procedures, and common fixes. Its purpose is to empower owners and technicians with the knowledge necessary to maintain, repair, and optimize the TE450, ensuring its longevity and performance.