This manual covers the KTM 400 LC4, a dual-sport motorcycle produced between 1998 and 2003. Known for its robust chassis and torquey single-cylinder engine, the 400 LC4 embodies KTM's reputation for high-performance, off-road capable machines. Its durable construction and potent engine made it a strong contender in its segment, offering riders a versatile platform for both on-road and off-road adventures. The LC4 platform has a long history within KTM, and this model represents a capable mid-displacement offering.

This comprehensive Factory Service Repair Manual provides detailed instructions for the maintenance, diagnosis, and repair of all variants and sub-models of the KTM 400 LC4 from 1998 to 2003. It covers all major systems, including the engine, transmission, chassis, suspension, braking, and electrical systems. The manual includes step-by-step procedures for component disassembly and assembly, regular servicing, troubleshooting common issues, and performing major rebuilds. Its purpose is to assist owners and technicians in effectively maintaining and repairing the motorcycle, ensuring its longevity and optimal performance.