This manual pertains to the 2003 125 SX, 125 EXC, 300 SX, and 300 EXC models. A brand with a rich heritage in off-road competition since 1934, is renowned for its powerful two-stroke engines, advanced WP suspension, and lightweight, robust chassis. These motorcycles, manufactured in Austria, were developed for serious off-road riding, with the SX variants designed for motocross and the EXC variants optimized for enduro, often featuring street-legal components. The 2003 models represented a refinement of the established off-road platform, building upon years of racing expertise to deliver high-performance machines that consistently garnered praise in enthusiast and professional reviews for their handling and suspension capabilities.

This English-language owner's manual, presented in format, provides essential information for the operation and maintenance of your 2003 motorcycle. It covers crucial areas such as pre-ride inspections, basic operation of controls, engine system maintenance, fuel and lubrication procedures, cooling system care, transmission and drivetrain upkeep, suspension and braking system basics, and electrical system fundamentals. The manual also includes guidance on wheel and tire maintenance, storage instructions, and basic troubleshooting for common issues. This document is designed to assist owners and technicians in understanding and performing routine maintenance, ensuring the longevity and optimal performance of the vehicle.