This comprehensive repair manual provides detailed instructions and specifications for servicing and maintaining your 2003-2007 Kawasaki KX125 and KX250 2-stroke motorcycles. It covers everything from routine maintenance procedures to advanced troubleshooting and repair techniques. You'll find step-by-step guidance for tasks such as engine removal and installation, fuel system adjustments, lubrication and cooling system checks, transmission and drive chain maintenance, steering system adjustments, suspension servicing, bodywork repair, intake and exhaust system inspection, electrical system diagnostics, and much more. This manual is an invaluable resource for both experienced mechanics and DIY enthusiasts, enabling you to perform repairs and maintenance with confidence and accuracy. With its detailed illustrations, clear explanations, and comprehensive coverage, this manual will keep your Kawasaki KX125 or KX250 running smoothly and reliably for years to come.

The 2003-2007 Kawasaki KX125 and KX250 were highly regarded motocross motorcycles known for their performance and handling. These 2-stroke machines were popular choices for both amateur and professional racers, renowned for their potent power delivery and agile nature. The KX125, with its 124cc engine, was a nimble and responsive bike, ideal for lighter riders or tracks with tight corners. Meanwhile, the KX250, featuring a 249cc engine, offered more raw power and was a formidable competitor on open tracks. Both models sported a robust aluminum frame, Showa suspension, and reliable components, ensuring durability and consistency on the track.

These Kawasaki motocross bikes were meticulously engineered for performance. The KX125 and KX250 boasted advanced features like a Keihin PWK carburetor, a power valve system for optimized power delivery throughout the rev range, and a highly efficient exhaust system. The suspension, consisting of Showa forks and a Uni-Trak rear suspension, offered a balance of plushness and control, allowing riders to navigate challenging terrain with confidence. The ergonomic design, featuring a comfortable rider triangle and well-positioned controls, ensured rider comfort and ease of use. These motorcycles were a testament to Kawasaki's commitment to crafting high-performance machines that could excel in the demanding world of motocross.