The GF125 is a motorcycle designed for entry-level to mid-range riders, fitting into the competitive 125cc naked sportbike segment. As a product of a South Korean manufacturer known for its diverse range of vehicles, the GF125 offers a blend of performance and practicality for urban commuting and general riding. While specific production years are not detailed, this model represents a commitment to providing accessible and reliable two-wheeled transportation, often competing with models from major Japanese manufacturers. This workshop service manual for the GF125 provides comprehensive, step-by-step guidance for repair and maintenance. Covering all major systems including the engine, fuel, transmission, chassis, suspension, brakes, and electrical components, it details procedures for disassembly, assembly, adjustment, and installation. The manual also includes essential technical specifications, troubleshooting information, wear limits, and torque values, making it an indispensable resource for mechanics and DIY enthusiasts aiming to ensure the longevity and optimal performance of their GF125 motorcycle.