This manual covers the KTM LC4 (400/660) models from 2002. KTM, an Austrian manufacturer renowned for its off-road racing heritage, developed the LC4 platform for high-performance dual-sport and street-legal motorcycles. Known for their rugged construction, powerful single-cylinder engines, and go-anywhere capability, these bikes offer a strong off-road bias combined with street legality. The LC4 engine, a mature iteration by 2002, is celebrated for its robust performance and durability, often featuring electronic ignition and advanced suspension components for its time.

This comprehensive service repair manual provides detailed information for the full service, repair, maintenance, and restoration of the KTM LC4 400 and 660 variants. It covers all essential systems, including the engine, transmission, fuel, ignition, electrical, suspension, brakes, wheels, tires, frame, and bodywork. The manual includes procedures for scheduled maintenance, troubleshooting, and complete rebuilds, offering factory-level detail with torque specifications and clearances. This resource is invaluable for owners, mechanics, and technicians seeking to maintain and repair these capable motorcycles.