The KX250F, model code KX250-N1, is a distinguished motocross competition machine, first produced in 2004. Engineered for high-revving performance, it features a potent liquid-cooled, four-stroke, 249 cc engine known for its strong mid-range and top-end power delivery, complemented by a lightweight aluminum perimeter frame and advanced suspension for exceptional handling and control on the track. The rich motorsports heritage is evident in the KX250F's design, which prioritizes rider input and mechanical feedback, making it a competitive choice in its segment against rivals like the Honda CRF250R and Yamaha YZ250F. This comprehensive service repair manual, written in English, provides detailed guidance for the maintenance and repair of your 2004 KX250F. It covers all essential systems, including complete engine overhauls, carburetor tuning, lubrication, cooling, and starting systems, as well as chassis components like the frame, suspension, wheels, and brakes. The manual offers step-by-step procedures for regular maintenance, component replacement, and troubleshooting, supported by highly detailed exploded diagrams and clear instructions. It is an indispensable resource for owners and technicians to ensure optimal performance and longevity of the vehicle.