This manual covers the KTM 400 LC4 LC4E Engine, produced in 1997. The LC4 engine platform is renowned for its robust construction, strong mid-range torque, and versatility, making it a cornerstone of KTM's successful off-road and dual-sport heritage. Designed for demanding applications, this engine is known for its durability and performance, often found in dual-sport and enduro motorcycles. Its engineering prioritizes reliability and power delivery, reflecting KTM's commitment to high-quality off-road machinery.

This Factory Service Repair Manual provides comprehensive guidance for the maintenance, troubleshooting, and repair of the KTM 400 LC4 LC4E Engine. It details procedures for all major engine systems, including the mechanical components, fuel system, ignition, lubrication, cooling, exhaust, and starting systems, as well as integrated transmission aspects. The manual is an essential resource for owners, mechanics, and technicians, offering step-by-step instructions, technical specifications, and diagnostic information to ensure the optimal performance and longevity of the engine.