The Hyosung Comet GT650, including its GT650R and GT650S variants, is a mid-size sportbike powered by a 647 cc liquid-cooled V-twin engine. Introduced in the early to mid-2000s, this model is recognized for its aggressive sportbike styling and offers a strong value proposition, often competing with models from Kawasaki, Suzuki, and Yamaha. Its V-twin engine provides robust mid-range torque, making it suitable for both entry-level and intermediate riders. The Comet 650 platform, manufactured in South Korea, is characterized by its 6-speed transmission, wet multi-plate clutch, and chain final drive, delivering a dynamic riding experience.

This comprehensive Service and Repair Manual in English provides detailed guidance for the maintenance, repair, and servicing of the Hyosung Comet GT650. It covers all essential systems, including the engine, transmission, chassis, braking, and electrical systems, offering in-depth procedures from routine maintenance tasks such as oil changes and filter replacements to complex engine and component rebuilds. The manual includes diagnostic charts for troubleshooting common issues, detailed technical specifications, and safety guidelines, ensuring owners and technicians can effectively maintain the vehicle's performance and longevity.