The Hyosung Comet GT125, produced in 2005, is a sportbike that offers styling reminiscent of larger motorcycles, a characteristic V-twin engine, and an approachable price point. Designed for entry-level to mid-range riders, this motorcycle aims to provide an engaging riding experience with its sporty aesthetic and accessible performance. Hyosung Motors Corporation, a South Korean manufacturer established in 1978, is known for delivering competitive features and designs across its motorcycle lineup, and the Comet 125 is a testament to this philosophy, often serving as an economical option for urban commuting and recreational riding.

This Repair Service Manual provides comprehensive guidance for the Hyosung Comet GT125. It covers essential maintenance procedures, detailed troubleshooting guides, and in-depth repair instructions for all major systems, including the engine, fuel system, ignition, cooling, transmission, clutch, chassis, brakes, and electrical components. The manual is intended for professional motorcycle technicians and experienced DIY mechanics, offering step-by-step procedures, diagnostic flowcharts, and technical specifications to ensure proper upkeep and repair, thereby maximizing the vehicle's performance and longevity.