This manual covers the KX125 and KX250 two-stroke motocross motorcycles produced between 1994 and 1998. These models represent a generation of highly competitive off-road machines known for their potent 2-stroke engines, delivering impressive horsepower for their respective displacements. The long heritage in motocross racing is evident in the engineering of these bikes, which were designed for peak performance and agility on the track. The KX series has consistently been a benchmark in its class, and these specific years reflect continuous development aimed at providing riders with cutting-edge technology and exhilarating performance. This comprehensive manual serves as an essential resource for owners and technicians, detailing all aspects of maintenance, repair, and troubleshooting for the KX125 and KX250 models from 1994 to 1998. It provides in-depth information on engine systems, drivetrain, chassis, and electrical components, including detailed procedures for engine rebuilds, transmission service, and suspension adjustments. With clear instructions and technical specifications, this guide empowers users to perform routine maintenance, diagnose issues, and ensure the longevity and optimal performance of their motorcycles. The manual covers everything from fluid specifications and service intervals to advanced fault diagnosis, making it an indispensable tool for any owner or mechanic.