This manual covers the KTM LC4 series motorcycles, including model variants such as the 400, 525, 620, 640, and 660, produced between 1998 and 2003. Renowned for their robust LC4 single-cylinder engine, long-travel suspension, and versatile dual-sport capabilities, these Austrian-manufactured machines are built for both on-road commuting and demanding off-road adventures. The LC4 platform has a strong heritage in motorsport, reflecting KTM's 'Ready to Race' ethos and commitment to durable, high-performance motorcycles.

This comprehensive Factory Service Manual/Workshop Manual provides detailed repair and maintenance information for all major systems, including the engine, fuel, ignition, transmission, chassis, suspension, brakes, and electrical systems. It offers step-by-step procedures for maintenance tasks, troubleshooting common issues, and performing in-depth repairs and component overhauls. With essential torque specifications and clear guidance, this English-language manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of their KTM LC4 motorcycle.

This manual covers the KTM LC4 series motorcycles, including model variants such as the 400, 525, 620, 640, and 660, produced between 1998 and 2003. Renowned for their robust LC4 single-cylinder engine, long-travel suspension, and versatile dual-sport capabilities, these Austrian-manufactured machines are built for both on-road commuting and demanding off-road adventures. The LC4 platform has a strong heritage in motorsport, reflecting KTM's 'Ready to Race' ethos and commitment to durable, high-performance motorcycles.

This comprehensive Factory Service Manual/Workshop Manual provides detailed repair and maintenance information for all major systems, including the engine, fuel, ignition, transmission, chassis, suspension, brakes, and electrical systems. It offers step-by-step procedures for maintenance tasks, troubleshooting common issues, and performing in-depth repairs and component overhauls. With essential torque specifications and clear guidance, this English-language manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of their KTM LC4 motorcycle.