This workshop repair service manual provides comprehensive information for the Hyosung Comet 650 S R, a motorcycle known for its liquid-cooled, 90-degree V-twin engine and sporty performance. Manufactured in South Korea, this model competes in the middleweight sportbike and naked sportbike segments, offering a blend of engineering quality and value. Its design features a 647.4 cc engine, a 6-speed transmission, and a robust chassis, making it a capable machine for various riding conditions. This manual serves as an essential resource for owners and technicians, offering detailed procedures for service, maintenance, and repair. It covers all models, engines, and trim types, with extensive sections on the fuel system, cooling system, engine top end, clutch, lubrication, transmission, brakes, suspension, steering, and electrical system. The manual includes hundreds of pages of diagrams, troubleshooting guides, diagnostic procedures, and electrical service information, all presented with numbered instructions and detailed illustrations to ensure accurate and efficient maintenance and repair.