This workshop service repair manual covers the GF125, a motorcycle designed for entry-level to mid-level performance. As a product of a South Korean manufacturer known for its sport-oriented motorcycles, the GF125 likely features a single-cylinder, 4-stroke engine with a 125cc displacement. Its naked sportbike or standard motorcycle classification suggests a focus on agile handling and a responsive riding experience. This manual provides comprehensive guidance for maintaining and repairing this model, ensuring its optimal performance and longevity. This full factory service repair manual is designed for both do-it-yourself enthusiasts and experienced mechanics. It offers in-depth, professional-quality information, including step-by-step instructions for complete disassembly and reassembly of all major and minor components. The manual covers a wide range of systems, from the engine and transmission to the electrical system, brakes, suspension, and bodywork. With hundreds of pages of detailed content, including photos, illustrations, wiring diagrams, and troubleshooting guides, this English-language manual serves as an indispensable resource for diagnosing issues, performing routine maintenance, and completing complex repairs on the GF125.