The 2004 Buell XB12R Firebolt represents a unique fusion of American V-twin power and European sportbike dynamics, engineered by Erik Buell himself. This model, powered by a 1203 cc air-cooled V-twin engine, features innovative engineering such as an aluminum frame with an integrated fuel cell and a Zero Torsional Load (ZTL) braking system, contributing to its distinctive handling characteristics and compact design. Built for performance enthusiasts, the Firebolt line, produced from 2003 to 2011, offered a compelling alternative in the sportbike market, lauded by the press for its agile feel and robust chassis. This comprehensive factory service repair manual provides detailed guidance for the maintenance and repair of your 2004 Buell XB12R Firebolt. It covers all essential systems, including the fuel, cooling, engine, clutch, transmission, wheels, final drive, brakes, suspension, steering, frame, and electrical systems. With step-by-step instructions, troubleshooting procedures, and technical specifications, this manual is an indispensable resource for owners and technicians alike, ensuring the longevity and optimal performance of the vehicle through accurate and thorough servicing.