The KTM 125 XC is a high-performance, lightweight 2-stroke competition motorcycle, renowned for its prowess in off-road racing disciplines such as motocross and enduro. Produced between 1999 and 2010, this Austrian-engineered machine features a potent 124.8 cc liquid-cooled engine, a chromoly steel trellis frame, and a 6-speed manual transmission. Its design prioritizes aggressive riding and racing, offering a powerful engine with an estimated 30-35 HP and advanced features like KTM's PowerPart exhaust valve system for enhanced torque. The 125 XC is recognized for its handling, durability, and a strong heritage of racing success, positioning it as a formidable competitor in its class.

This comprehensive Service Repair Manual provides essential information for the maintenance, diagnosis, and repair of the KTM 125 XC models from 1999 to 2010. Covering approximately 350-450 pages, the manual details complete engine disassembly, inspection, and assembly, along with specific procedures for the cooling system, fuel system, ignition, lubrication, and exhaust systems. It includes routine maintenance tasks, engine overhaul procedures, carburetor tuning, troubleshooting guides, torque specifications, and identification of special tools. The manual's scope extends to electrical systems and fluid specifications, ensuring owners and technicians have all the necessary resources to keep the 125 XC performing at its peak.