This manual covers the 125 SX, 200 SX, 125 MXC, 200 MXC, 125 EXC, and 200 EXC models manufactured between 1999 and 2003. These high-performance off-road motorcycles embody a 'Ready to Race' philosophy, offering lightweight design and potent 2-stroke engines for competitive motocross, cross country, and enduro riding. Known for their robust chromoly steel frames and advanced suspension, these bikes are engineered for demanding off-road conditions and have a strong reputation in amateur and professional racing circuits.

This comprehensive service repair workshop manual provides in-depth technical information for owners and technicians. It details maintenance procedures, troubleshooting diagnostics, and repair instructions for all major systems, including the 2-stroke engine, fuel and ignition systems, cooling, transmission, suspension, brakes, and electrical components. The manual includes specific guidance for the SX, MXC, and EXC variants, covering differences in suspension tuning, gearing, and components, ensuring owners can effectively maintain and repair their bikes for optimal performance and longevity.