This workshop repair service manual covers the KTM 400 LC4 and LC4 Adventure/Enduro models produced between 1998 and 2005. Built on KTM's strong heritage in off-road and racing, the LC4 platform is recognized for its robust single-cylinder engine, known for torque and versatility. These motorcycles, primarily manufactured in Austria, have been a cornerstone for KTM, offering a blend of performance suitable for both adventure touring and demanding enduro riding. The 400 LC4, with its approximately 398cc four-stroke liquid-cooled engine, provides a tractable power delivery, making it a capable machine for a variety of terrains.

This comprehensive manual provides detailed information essential for the maintenance and repair of your KTM 400 LC4. It covers critical areas including full engine disassembly and assembly, transmission overhaul, chassis and suspension servicing, brake system maintenance, and electrical system diagnostics. The manual includes step-by-step procedures for routine maintenance, troubleshooting common issues, and in-depth repair instructions for all major components. With detailed diagrams, torque specifications, and electrical schematics, this English-language resource is designed to assist owners, mechanics, and technicians in keeping their LC4 motorcycles in optimal condition.