This manual covers the FE and FS series motorcycles, including the FE/FS 450, FE/FS 500, FE/FS 550, and FE/FS 650 models produced between 2004 and 2007. These performance-oriented off-road motorcycles, available in both Enduro (FE) and Supermoto (FS) configurations, are renowned for their powerful single-cylinder engines, often derived from KTM technology, and their robust chassis. Vehicles from this period are recognized for their competitive edge in off-road racing and their specialized engineering, appealing to enthusiasts seeking high performance and reliability in demanding conditions.

This comprehensive service repair manual provides detailed information essential for the maintenance, troubleshooting, and repair of your motorcycle. It covers all major systems, including the engine, fuel system, cooling, transmission, chassis, suspension, brakes, and electrical systems. Within its extensive pages, you will find step-by-step procedures for routine maintenance, engine rebuilds, suspension servicing, and electrical diagnostics, alongside critical technical specifications, torque values, and detailed parts diagrams. This manual is an invaluable resource for owners, mechanics, and technicians aiming to ensure the optimal performance and longevity of their FE/FS series.