This manual covers the 450 EXC, 400 EXC, and 520 SX models from the 2000 to 2003 model years. These motorcycles are renowned for their high-performance, off-road capabilities, featuring powerful four-stroke engines, agile chassis, and sophisticated suspension systems. Built with Austrian engineering heritage, these bikes were designed for serious enduro and motocross riders, offering exceptional handling and durability in demanding terrain. Their competitive edge is further underscored by their success in various off-road racing disciplines.

This comprehensive factory service repair workshop manual provides detailed information essential for the maintenance, troubleshooting, and repair of your motorcycle. It covers all major systems, including the engine, transmission, chassis, brakes, and electrical components, with step-by-step procedures for everything from routine servicing and component replacement to complete engine and suspension rebuilds. The manual includes critical technical specifications, torque values, wiring diagrams, and diagnostic guidance to ensure your vehicle remains in optimal condition and performs at its best.