This manual covers the KTM SX, EXC, and MXC series of off-road motorcycles produced between 1998 and 2003. These high-performance, liquid-cooled, 2-stroke, single-cylinder machines, available in 250cc, 300cc, and 380cc displacements, are renowned for their power, agility, and 'Ready to Race' philosophy. Built with robust chromoly steel frames and advanced WP suspension systems, these models have a strong heritage in professional motocross and enduro racing, embodying KTM's commitment to off-road excellence and durability.

This comprehensive service and repair manual provides detailed information essential for maintaining and repairing your KTM motorcycle. It covers all major systems, including the engine, transmission, fuel system, electrical system, chassis, and suspension. With step-by-step procedures for routine maintenance, troubleshooting, engine rebuilds, and component servicing, this manual is an invaluable resource for both novice and experienced mechanics. It includes critical technical specifications, torque values, and wiring diagrams, empowering owners and technicians to keep these potent off-road machines in optimal condition.