This workshop service repair manual covers the KTM motorcycle from the 2004 model year, part of the Early 2000s generation. These models are equipped with robust four-stroke single-cylinder engines, available in 249 cc, 398 cc, 449 cc, 520 cc, and 525 cc displacements. They feature a reliable constant mesh, 6-speed manual transmission and are built upon a strong chromium-molybdenum steel trellis frame. The chassis is supported by advanced suspension systems, including a 48 mm upside-down telescopic front fork and a monoshock rear suspension. Braking is handled by front and rear disc brakes, with approximate rotor sizes of 260 mm and 220 mm respectively. The wheel and tire configuration includes a 21-inch front rim and an 18-inch rear rim, both designed with an off-road bias.

This comprehensive manual provides essential information for the maintenance, repair, and servicing of your KTM motorcycle. It details critical procedures such as oil changes, including specific oil type recommendations and approximate capacities for different engine sizes, as well as spark plug selection, chain maintenance, and air filter care. Technical specifications for the chassis, suspension, brakes, and wheels are included, along with guidance on troubleshooting common issues. This resource is designed to assist owners, mechanics, and technicians in ensuring the optimal performance, longevity, and safety of the vehicle through accurate and detailed technical data and procedural instructions.