This document provides comprehensive technical information for the 125 EXC, covering production years from 1999 to 2006. Known for its "Ready to Race" philosophy, the 125 EXC was engineered as a competitive off-road motorcycle, prized for its performance, advanced engineering, and robust off-road capability. This generation of the 125 EXC reflects extensive racing heritage, offering a potent 125cc two-stroke engine, a capable chassis, and refined suspension, making it a respected choice in its segment against contemporaries from other manufacturers.

This factory service repair manual is designed to be the definitive resource for maintaining and repairing your 125 EXC. It offers in-depth coverage of all major systems, including the engine, transmission, chassis, suspension, brakes, and electrical components. You will find detailed procedures for routine maintenance, engine rebuilds, suspension service, and troubleshooting common issues. The manual includes essential technical specifications, special tool requirements, and high-quality diagrams to assist owners, mechanics, and technicians in ensuring optimal performance and longevity of the vehicle.