The Hyosung Comet 125, produced from 2002 to 2010, is an entry-level sport motorcycle designed with sporty styling and accessible performance. Featuring a 4-stroke, air-cooled, V-twin engine with approximately 124.5 cc displacement, it offers an engaging riding experience suitable for new riders or those seeking economical urban transportation. Its value proposition lies in its visually appealing design, drawing influences from contemporary sportbike aesthetics, and its manageable power output, typically around 13-15 HP. The Comet 125 is equipped with a 5-speed transmission, wet multi-plate clutch, and chain drive, along with front and rear disc brakes for reliable stopping power.

This comprehensive service manual provides factory-level repair and maintenance information for the Hyosung Comet 125 models spanning 2002 through 2010. It covers all essential aspects of the motorcycle, including detailed procedures for engine overhaul, fuel system maintenance, ignition system diagnostics, transmission and clutch service, braking system repairs, suspension adjustments, and electrical system troubleshooting. The manual also includes routine maintenance schedules, component rebuild instructions, wiring diagrams, and torque specifications, ensuring owners and technicians have the necessary resources to maintain and repair the vehicle effectively.