This comprehensive service and repair manual provides you with the in-depth knowledge needed to maintain and repair your 2003 KTM 250-525 SX, MXC, or EXC racing motorcycle. The manual is filled with detailed exploded diagrams and step-by-step instructions, ensuring you can understand every aspect of your motorcycle's workings. Dive into the intricacies of your machine with sections covering service information, general information, engine removal and refitting, component servicing, engine assembly, electrical systems, troubleshooting, technical specifications, periodic maintenance schedules, and wiring diagrams. This manual is an invaluable resource for both experienced mechanics and those looking to maintain their motorcycle efficiently.

The 2003 KTM 250-525 SX, MXC, and EXC models represent a high point in KTM's storied history of off-road motorcycle production. These machines, renowned for their lightweight construction, potent engines, and exceptional handling, were the choice of champions in both motocross and enduro racing. The range encompassed four distinct models: the SX, a pure motocross machine designed for high-speed jumps and tight turns; the MXC, a more versatile off-road bike suitable for both motocross and enduro; and two EXC models, the 250 EXC and the 400 EXC, focused on enduro racing with a focus on durability and long-distance riding. All models shared the same basic engine design, a single-cylinder, four-stroke unit known for its impressive power delivery and smooth throttle response. The 250cc models offered a punchy, quick-revving performance ideal for technical tracks, while the 400cc and 525cc models provided ample torque and smooth power for tackling challenging terrain and navigating long enduro loops.

The 2003 KTM 250-525 SX, MXC, and EXC models featured several innovative features, including a lightweight aluminum frame, a responsive WP suspension system, and a hydraulic clutch. These design elements contributed significantly to the bikes' exceptional handling characteristics, allowing riders to confidently maneuver through tight corners, tackle challenging obstacles, and maintain a high level of control even at high speeds. The 2003 KTM 250-525 SX, MXC, and EXC models quickly gained a reputation for their performance and reliability, becoming a favorite among both professional and amateur riders. Their legacy continues to this day, with many riders enjoying these machines for their thrilling riding experience and unmatched handling capabilities.