This manual covers KTM SX, MXC, XC, EXC, and SMR models equipped with the LC4 engine, specifically those produced between 2000 and 2007. These high-performance off-road and motard motorcycles are renowned for their robust LC4 liquid-cooled, single-cylinder engines and agile chassis, reflecting KTM's heritage in off-road racing. The 520 and 525 variants, powered by the 4-stroke LC4 engine, offer significant power and torque, making them highly competitive in their respective disciplines. This manual provides detailed information essential for owners and technicians working on these potent machines.

This comprehensive factory service and repair workshop manual provides in-depth guidance for all aspects of maintenance and repair for your KTM motorcycle. It includes detailed procedures for routine maintenance, engine rebuilds, transmission and clutch service, suspension overhaul, brake system maintenance, and electrical system diagnostics. With factory-level accuracy, this manual offers troubleshooting guides, technical specifications, torque values, and information on special tools, ensuring that owners and mechanics can effectively maintain and repair these performance-oriented KTM models.