The 2008 Yamaha YZ250F is a high-performance motocross competition bike renowned for its advanced engineering and race-winning capabilities. This model features a liquid-cooled, DOHC, four-valve, single-cylinder engine with a displacement of 249 cc, paired with an aluminum bilateral beam frame designed for optimal rigidity and lightness. Its advanced suspension system, utilizing Kayaba (KYB) Speed Sensitive System (SSS) front forks and a KYB rear shock absorber, provides exceptional adjustability and performance on demanding motocross tracks. The YZ250F is a testament to Yamaha's long-standing commitment to innovation and excellence in the competitive 250cc four-stroke class.

This comprehensive service and repair manual provides detailed information for the complete service and repair of the 2008 Yamaha YZ250F. It covers essential maintenance procedures, in-depth troubleshooting, diagnostic techniques, and technical specifications across all major systems, including the engine, fuel system, transmission, drivetrain, suspension, brakes, and electrical components. The manual offers step-by-step instructions for component disassembly, repair, and reassembly, as well as procedures for engine and suspension rebuilds. Its detailed coverage is designed to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of their YZ250F.