The Kymco Mongoose KXR is an All-Terrain Vehicle (ATV) designed for versatile off-road performance, available in 50cc and 90cc variants, with models produced from 2003 onwards. Engineered with a robust steel frame and powered by reliable 2-stroke, air-cooled engines with carburetor fuel systems and CDI ignition, this ATV offers an automatic Continuously Variable Transmission (CVT) for smooth power delivery via chain drive. Its independent A-arm front suspension and swingarm rear suspension, coupled with halogen headlights and a 12V battery system, make it well-suited for various terrains and recreational riding. This comprehensive Service Repair Workshop Manual provides full and complete repair coverage for all aspects of the Kymco Mongoose KXR, covering all repairs from A to Z. It details essential maintenance procedures, including lubrication requirements for its 2-stroke premix engine, and outlines periodic maintenance schedules. The manual also includes technical specifications for engine displacement, fuel tank capacity, braking systems, suspension components, and electrical systems, serving as an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of their vehicle.