The 450 SX-F / XC-F and 505 SX-F / XC-F motorcycles, produced in 2009, represent dedication to high-performance off-road competition. Engineered with a 'Ready to Race' philosophy, these liquid-cooled, four-stroke single-cylinder machines are built for agility and raw power, making them ideal for motocross and cross-country racing. Their design prioritizes race-bred performance, featuring advanced engine technology such as Electronic Fuel Injection (EFI) for precise throttle response and a robust chromoly steel frame for optimal strength and rigidity. With a strong heritage in motorsports, models are globally recognized for their winning capabilities and advanced engineering in the demanding off-road segment.

This comprehensive service repair manual, presented in English, offers detailed guidance for the maintenance, service, diagnosis, and repair of the 2009 450 SX-F / XC-F and 505 SX-F / XC-F models. Covering all essential systems including engine management, fuel, lubrication, electrical, and chassis components, it provides step-by-step procedures for periodic maintenance, tune-ups, troubleshooting, and component repair or rebuilds. This professional-level manual equips owners, mechanics, and technicians with the necessary technical specifications, torque values, and diagnostic information to ensure the longevity and optimal performance of these high-performance off-road motorcycles.