This manual covers the FS450C, a high-performance Supermoto motorcycle produced for the 2001, 2002, and 2003 model years. Known for its blend of off-road capability and street-legal modifications, the FS450C embodies a philosophy of lightweight, technologically advanced engineering. This model, developed during a period of integration with KTM, offered exceptional agility and power delivery, making it a competitive choice for enthusiast riders. The FS450C features a liquid-cooled, four-stroke, single-cylinder engine of approximately 450cc, equipped with a SOHC, 4-valve cylinder head and typically a large-bore Mikuni carburetor. Its robust construction and performance-oriented design made it a standout in its class.

This comprehensive Service Repair Manual provides in-depth information for the maintenance and repair of the FS450C. It details engine service and repair procedures, including disassembly, assembly, inspection, and tuning of major engine components. Coverage extends to the fuel, ignition, cooling, lubrication, and exhaust systems, as well as routine maintenance tasks such as oil changes, filter replacements, and valve clearance adjustments. The manual also includes troubleshooting guides for common engine problems, diagnostic procedures, and detailed rebuild specifications, including torque settings and clearances. Furthermore, it offers insights into electrical diagnostics and wiring diagrams specific to the engine and ignition circuits, ensuring owners and technicians have the resources needed to keep the FS450C in optimal condition.