This manual covers the KTM 250/300/380 EXC/SX series of high-performance off-road motorcycles. These models are renowned for their lightweight, powerful two-stroke engines, characterized by punchy power delivery and mechanical simplicity, making them competitive in motocross and enduro disciplines. Built with a Chromoly Steel Perimeter Frame and featuring advanced WP Suspension, these bikes are engineered for demanding terrain and enthusiast riders. KTM's legacy in off-road racing underpins the development of these models, which have evolved over decades to offer exceptional performance.

This service manual provides comprehensive coverage of engine service and repair, detailing procedures for internal and external engine components, including the cylinder, piston, crankshaft, carburetor, clutch, and gearbox. It outlines disassembly and reassembly processes, maintenance tasks such as top-end rebuilds and clutch service, and troubleshooting common engine faults. The manual includes essential technical specifications, torque values, and measurement clearances, along with guidance on specialized tools required for engine overhauls. This German-language resource is designed to assist owners and technicians in maintaining and repairing the engine systems of these powerful KTM motorcycles.