This workshop service manual provides comprehensive repair and maintenance information for the KTM LC4 400 motorcycle, covering production years 1998 through 2006. Renowned for its robust single-cylinder engine and strong off-road performance, the LC4 platform is a staple for adventure touring. This manual is designed to empower owners and technicians with the knowledge required to maintain and repair this capable dual-sport machine, ensuring its reliability and optimal performance.

The manual details a wide array of systems and procedures, including complete engine disassembly and assembly, fuel and ignition system servicing, transmission and clutch maintenance, chassis and suspension adjustments, brake system overhauls, and electrical system diagnostics. It also covers routine maintenance schedules, troubleshooting common issues, and the use of specialized tools. With 501 pages of detailed English instructions, this manual serves as an essential resource for anyone looking to perform in-depth work on their KTM LC4 400.