This manual covers the 125 SX, 200 SX, 125 EXC, and 200 EXC models, encompassing production from 2003 to the current year. These lightweight, high-performance off-road motorcycles are renowned for their agile handling, potent 2-stroke power delivery, and competitive performance in motocross and enduro disciplines. Built with a focus on rider control and maneuverability, the heritage in motorsport is evident in the engineering and design of these versatile machines, which have consistently achieved success in racing events.

This comprehensive workshop repair manual provides technician-level guidance for all aspects of maintenance and repair for your 125/200 SX/EXC. It details engine service, including complete disassembly, inspection, and reassembly of the 2-stroke engines, along with procedures for the fuel, ignition, cooling, exhaust, clutch, and transmission systems. Additionally, the manual covers chassis and suspension service, brake system maintenance, electrical diagnostics, and troubleshooting common issues, ensuring owners and technicians can effectively maintain and repair these performance-oriented motorcycles.