The 2004 Buell Firebolt represents a distinct era in sportbike design, characterized by Erik Buell's innovative engineering philosophy. This model, part of the XB Series, integrates a Buell Thunderstorm V-Twin engine, available in 1203 cc (XB12) and 984 cc (XB9) displacements, into a rigid 'Truss' frame that uniquely houses the fuel. Notable features include the 'Zero Rise' rider triangle and the distinctive frame-mounted fairing, contributing to its aggressive styling and performance-oriented handling. The Firebolt was engineered for enthusiast riders seeking a blend of American V-twin character with European sportbike agility, positioning it as a unique offering against contemporary competitors.

This comprehensive Factory Service Repair Manual (FSM) provides essential information for the maintenance, diagnosis, and repair of the 2004 Buell Firebolt XB Series. It covers a wide range of systems, including the Thunderstorm V-Twin engine, fuel injection, ignition, transmission, chassis, suspension, and braking systems. Detailed procedures for routine maintenance, component rebuilds, and troubleshooting are included, along with critical technical specifications, wiring diagrams, and fluid recommendations. This manual serves as an indispensable resource for owners, mechanics, and technicians aiming to preserve the performance and longevity of their Buell Firebolt.