The GF125, produced from 1997 onwards, is a lightweight sport/commuter motorcycle designed for nimble urban navigation and sporty styling. Representing the GF series, this model competes within the 125cc class, offering an economical and engaging riding experience. Its four-stroke, air-cooled, single-cylinder engine, likely displacing around 124cc and producing approximately 10-15 horsepower, is paired with a manual transmission and chain drive. Key features include a wet multi-plate clutch and a carburetor-based fuel system, making it a straightforward yet capable machine for daily use or recreational riding. This comprehensive Service Repair Manual provides complete guidance for the GF125, covering everything from routine maintenance to in-depth repairs. It details procedures for engine overhaul, lubrication, cooling, fuel, ignition, and exhaust systems, as well as transmission, drivetrain, chassis, suspension, braking, and electrical components. Included are step-by-step instructions for maintenance tasks such as oil changes and filter replacements, complex repair procedures like engine rebuilds and electrical troubleshooting, and diagnostic guides for common issues. This manual is an essential resource for owners and technicians aiming to maintain the optimal performance and longevity of their GF125.