This workshop service repair manual covers the KTM 400 LC4 motorcycle, including the LC4 Enduro and LC4 Adventure variants, produced between 1998 and 2003. Renowned for its robust 4-stroke single-cylinder LC4 engine, this Austrian-built dual-sport and enduro machine offers a potent blend of off-road prowess and on-road versatility. The LC4 platform is a cornerstone of KTM's heritage, celebrated for its torque, reliability, and ruggedness, making it a capable choice for both spirited riding and demanding adventure touring. This manual serves as an essential resource for owners and technicians seeking to maintain and repair these iconic motorcycles.

The purpose of this comprehensive English-language manual is to provide detailed guidance for the maintenance, troubleshooting, and repair of the KTM 400 LC4. It covers all major systems, including the engine, fuel, ignition, cooling, transmission, drivetrain, suspension, brakes, electrical system, wheels, tires, frame, and bodywork. With extensive coverage of routine maintenance, detailed engine rebuild procedures, suspension overhauls, and electrical diagnostics, this manual is designed to empower users to perform expert-level service. It includes troubleshooting guides and technical specifications crucial for diagnosing and resolving issues, ensuring the longevity and optimal performance of your vehicle.