This manual covers the KTM LC4 series motorcycles produced between 1998 and 2003, featuring engine displacements ranging from 400cc to 660cc. The LC4 engine family is renowned for its robust single-cylinder design, delivering strong torque and proven durability, making these bikes highly capable for dual-sport, enduro, and supermoto applications. KTM's heritage in off-road competition is reflected in the LC4's engineering, offering a blend of performance and ruggedness that has made it a favorite among riders seeking adventure and reliability.

This comprehensive Workshop Service Repair Manual provides detailed procedures for all aspects of maintenance and repair for your KTM LC4. It includes in-depth guidance on engine systems, transmission, chassis components, and electrical systems, with specific instructions for disassembly, assembly, troubleshooting, and component replacement. Whether you are performing routine servicing, addressing common wear items, or undertaking a full engine rebuild, this manual offers the technical specifications, diagnostic charts, and step-by-step instructions necessary to ensure your motorcycle remains in optimal condition.