This workshop service repair manual covers KTM 125 SX, 200 SX, 125 EXC, and 200 EXC off-road motorcycles produced between 1999 and 2003. KTM is renowned for its strong heritage in motorsports, and these models embody that legacy, offering exceptional performance and handling for motocross and enduro riding. The SX line is engineered for competition, while the EXC variants are built for versatile off-road use. These robust, liquid-cooled, two-stroke single-cylinder machines, featuring LC2 engines, are celebrated for their durability and success in demanding off-road environments.

This comprehensive manual is designed to be an essential resource for owners and technicians. It details all aspects of maintenance, troubleshooting, and repair for these KTM models. Coverage includes in-depth procedures for the engine, transmission, chassis, suspension, brakes, fuel system, and electrical systems. With step-by-step instructions, detailed diagrams, and specific technical data such as torque values and fluid specifications, this manual empowers users to maintain their motorcycles to factory standards, ensuring optimal performance and longevity.