This manual covers the KTM 620LC4 COMPETITION motorcycle, produced between 1998 and 2005. As a high-performance single-cylinder supermoto/enduro machine, the 620LC4 COMPETITION is built upon KTM's robust LC4 engine platform, renowned for its torque and versatility. This model represents a specialized, high-performance motorcycle designed for enthusiast owners and performance tuners, benefiting from KTM's strong off-road racing heritage. Its engineering emphasizes a powerful, liquid-cooled, four-stroke engine and a durable chromium-molybdenum steel trellis frame, offering a potent combination for both spirited riding and demanding conditions.

This comprehensive Factory Service Repair Manual provides detailed information for the maintenance, diagnosis, and repair of your KTM 620LC4 COMPETITION. It covers all major systems, including engine mechanicals, fuel and ignition systems, transmission, chassis, suspension, brakes, and the electrical system. Within its pages, you will find step-by-step repair procedures, routine maintenance schedules, troubleshooting guides, and essential technical specifications. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance, reliability, and longevity of their vehicle.