Unlock the secrets of your 2003 KTM 250-525 SX, MXC, EXC RACING motorcycle with this comprehensive service repair manual. This invaluable resource provides detailed instructions and exploded diagrams to guide you through every aspect of maintenance and repair.

Dive into the intricacies of your motorcycle's engine with detailed sections covering removal, refitting, disassembly, component servicing, and assembly. Gain a thorough understanding of your motorcycle's electrical system, fuel system, and troubleshooting procedures. The manual also includes technical specifications and wiring diagrams, ensuring you have all the necessary information at your fingertips.

This service repair manual empowers you to confidently maintain and repair your KTM motorcycle, saving you time and money in the long run.

The KTM 250-525 SX, MXC, and EXC RACING models from 2003 represent a pivotal era in the Austrian motorcycle manufacturer's history. These off-road machines were renowned for their cutting-edge technology and performance, pushing the boundaries of motocross and enduro competition. The SX models were purpose-built for motocross racing, prioritizing lightweight agility and raw horsepower. The MXC models offered a slightly more versatile platform, with modifications like a wider handlebar and more comfortable seat, making them suitable for both racing and recreational riding. The EXC models were designed for enduro racing, featuring a longer-travel suspension, larger fuel tank, and a more robust build, capable of tackling challenging terrain and enduring long distances. All three models shared a common engine family, ranging from a compact 250cc to a powerful 525cc four-stroke single-cylinder engine. This engine was known for its smooth power delivery and impressive power-to-weight ratio, making these KTMs highly competitive machines.

These 2003 KTMs were packed with innovative features, including a lightweight aluminum frame, a responsive WP Suspension system, and a robust braking system. The SX models were particularly notable for their aggressive geometry and powerful engine, making them highly sought after by skilled motocross riders. The MXC models offered a more balanced experience, combining performance with manageability for a broader range of riders. The EXC models were known for their durability and ability to handle demanding conditions, making them ideal for challenging enduro races and adventure riding. These KTMs were a testament to the manufacturer's commitment to innovation and performance, earning a reputation for being reliable, powerful, and capable machines that push the limits of off-road riding. Many riders and collectors consider these models to be classics, showcasing the evolution of KTM's design and engineering prowess that continues to influence the off-road motorcycle industry today.