The 300 EXC, produced between 2004 and 2006, is a high-performance, liquid-cooled, 2-stroke off-road motorcycle renowned for its potent low-end torque and tractable power delivery, making it a dominant force in enduro and extreme enduro competitions. Built with a signature 'Ready to Race' philosophy, this model features robust construction for demanding terrain and is equipped with WP suspension components for superior handling and compliance. Its liquid-cooled, single-cylinder engine, often designated LC2, delivers approximately 45-50 horsepower and is complemented by a 6-speed transmission and a hydraulically operated wet multi-plate clutch, embodying a heritage in off-road excellence.

This comprehensive workshop service manual provides essential guidance for the maintenance, repair, and troubleshooting of the 300 EXC (2004-2006). It covers all critical systems, including detailed procedures for engine overhauls, carburetor tuning, transmission servicing, chassis maintenance, brake system repairs, and electrical system diagnostics. With step-by-step instructions, torque specifications, fluid recommendations, and troubleshooting flowcharts, this manual is an indispensable resource for owners, mechanics, and technicians seeking to preserve the optimal performance and longevity of their motorcycle.