Introducing the 990 Super Duke, a performance naked sportbike produced from 2003 to 2007. Known for its raw power, aggressive styling, and rider-focused ergonomics, this Austrian-manufactured machine delivers a visceral riding experience. Built upon the LC8 V-twin engine platform, the 990 Super Duke offers approximately 113 horsepower and 97 Nm of torque, making it a formidable contender in its segment, often lauded in media for its thrilling ride and agile handling. Its engineering quality and reliability are central to its appeal for enthusiast riders seeking a track-capable motorcycle. This comprehensive Service Repair Manual in English is designed to guide owners, mechanics, and technicians through the intricacies of the 990 Super Duke. It covers all essential areas, including detailed maintenance procedures, troubleshooting guidance, and in-depth diagnostic information for the engine, fuel, cooling, electrical, and chassis systems. With information on everything from routine fluid changes and valve adjustments to complete engine rebuilds and electrical component replacement, this manual provides the knowledge necessary to maintain and repair the vehicle effectively, ensuring optimal performance and longevity.