This manual covers the KTM 400 MXC, a competition-focused off-road motorcycle produced between 2000 and 2007. Built in Austria, the 400 MXC is powered by a liquid-cooled, 4-stroke, single-cylinder LC4 engine, typically around 398cc, featuring a SOHC 4-valve configuration. Designed for demanding off-road conditions, it emphasizes agility and performance, competing with models like the Yamaha WR400F and Honda XR400R. Its robust chromoly steel trellis frame and powerful hydraulic disc brakes contribute to its reputation for reliability in competitive enduro and motocross riding.

This comprehensive workshop repair service manual provides detailed guidance for owners and technicians. It covers essential maintenance procedures, including engine oil changes, air filter cleaning, and chain lubrication, along with in-depth information on engine overhaul, fuel system service, cooling, ignition, and exhaust systems. The manual also details transmission and drivetrain maintenance, suspension servicing for both front forks and rear shock, braking system repairs, and electrical system diagnostics. Troubleshooting guides, component replacement instructions, tune-up procedures, torque specifications, and required special tools are all included to ensure optimal performance and longevity of the KTM 400 MXC.