The Hyosung Comet 650, available in various configurations including the GT650 sportbike, GT650R faired sportbike, and GV650 cruiser, is powered by a 647 cc liquid-cooled V-twin engine. Introduced in the early 2000s, this motorcycle platform competes in the middleweight segment with its distinctive engine character and a range of features designed for performance and rider comfort. Key attributes include its DOHC valve train, a 6-speed transmission, and a choice between fuel injection or carburetor systems depending on the model year. The Comet 650 is recognized for offering a substantial V-twin experience at a competitive price point, making it a compelling option for riders seeking performance and style.

This comprehensive service manual provides detailed repair and maintenance information for the Hyosung Comet 650. It covers essential areas such as engine overhaul, transmission servicing, chassis and suspension repairs, brake system maintenance, and electrical system diagnostics. The manual includes step-by-step procedures for routine maintenance tasks, troubleshooting common issues, and performing major repairs. With professional-level technical detail, this resource is invaluable for owners, mechanics, and technicians aiming to keep their Hyosung Comet 650 in optimal working condition, ensuring its longevity and performance.