This manual covers the Comet 250 GT250, a sportbike model produced in 2003. Known for its accessible performance and V-twin engine, the GT250 has been a consistent offering from a manufacturer from South Korea. This particular model features a 249 cc, 4-stroke, 8-valve, DOHC V-twin engine, typically producing around 30-35 horsepower, paired with a 5-speed manual transmission and a wet, multi-plate clutch. Its engineering emphasizes reliability and ease of maintenance, making it a popular choice for riders seeking a capable yet manageable sportbike experience. The vehicle is constructed with a steel frame for structural integrity and features front and rear disc brakes for effective stopping power. This comprehensive service repair manual is designed to assist both professional technicians and do-it-yourself mechanics in maintaining and repairing the Comet 250 GT250. It provides detailed, step-by-step guidance on a wide array of systems, including engine overhaul, fuel and ignition systems, transmission, chassis, braking, and electrical components. The manual covers regular maintenance procedures, disassembly and assembly instructions, troubleshooting common issues, and essential technical specifications. The goal is to equip users with the knowledge needed to keep the vehicle in optimal working condition, ensuring its longevity and performance.