The 2004 Buell XB9S Firebolt is a high-performance sportbike renowned for its innovative engineering and distinctive design. Built in the USA, this model features Buell's signature frame-as-fuel-tank concept, an under-seat exhaust system, and a powerful air-cooled, 45-degree V-twin engine displacing 984 cc. With approximately 103 horsepower and 70 ft-lbs of torque, the XB9S Firebolt offers agile handling and a dynamic riding experience, making it a standout in its class. Its unique chassis design and robust powertrain, leveraging engineering capabilities, contribute to its reputation for performance and a strong value proposition for owners seeking a capable sportbike. This comprehensive factory service repair manual in English provides detailed guidance for the maintenance and repair of the 2004 Buell XB9S Firebolt. It covers all major motorcycle systems, including the engine's top end, fuel system, oil cooling, clutch, crankshaft and transmission, wheels and tires, final drive, brakes, suspension, steering, frame, and electrical system. The manual includes step-by-step procedures for routine maintenance, complex repairs, troubleshooting, and complete disassembly and reassembly. With hundreds of illustrations and photos, this manual is an essential resource for owners and technicians aiming to keep their XB9S Firebolt in optimal condition, ensuring its longevity and performance.