The Yamaha YZ250F, produced in 2009, is a high-performance motocross and off-road motorcycle engineered for competitive riding. It features a liquid-cooled, four-stroke, 249cc engine with a DOHC, four-valve configuration, paired with a Keihin FCR37 carburetor for optimal fuel delivery. The chassis is built around an aluminum bilateral beam frame, designed to provide excellent rigidity and handling balance, complemented by advanced KYB suspension components, including Speed Sensitive System (SPS) front forks and an adjustable rear shock. With a focus on power, agility, and rider control, the YZ250F has a lineage of success in the demanding world of motocross, building on Yamaha's extensive motorsports heritage.
This comprehensive service manual provides essential information for the maintenance and repair of your 2009 Yamaha YZ250F. It covers all major systems, including detailed procedures for engine overhaul, transmission servicing, chassis components, brakes, and the electrical system. The manual also includes scheduled maintenance guidelines, troubleshooting diagnostics for common issues, and critical technical specifications such as torque values and fluid capacities. Designed for owners, mechanics, and technicians, this English-language digital document offers in-depth coverage, from basic upkeep to complete rebuilds, ensuring your vehicle remains in optimal condition.