This workshop service repair manual covers the Kymco Maxxer/Mongoose 300/250 models from 2005. A Taiwanese manufacturer established in 1963, is known for producing reliable and competitively priced vehicles. The Maxxer and Mongoose lines represent engagement in the sport and utility ATV market, with the 250 and 300cc variants being popular mid-range options. These ATVs typically feature a single-cylinder, four-stroke, liquid-cooled engine, a CVT automatic transmission, and shaft drive. They are designed for recreational use, offering a balance of performance and durability. This comprehensive manual is designed to assist owners and technicians in maintaining and repairing their Kymco Maxxer/Mongoose 300/250. It provides detailed instructions and diagrams for all major systems, including engine, drivetrain, chassis, and electrical components. Key areas covered include routine maintenance procedures such as oil changes, filter replacements, and valve adjustments, as well as in-depth repair procedures for engine overhauls, transmission servicing, and electrical system diagnostics. Troubleshooting guides are also included to help identify and resolve common issues, ensuring the vehicle remains in optimal operating condition.