This manual provides comprehensive service and repair information for All-Terrain Vehicles (ATVs) manufactured between 1985 and 1995. During this significant period of ATV development, key technologies such as the Variable Transmission (PVT) system and advanced 4-wheel drive capabilities were introduced and refined. This manual covers a wide array of models from this era, including the Scrambler, Trail Boss, Big Boss, Trail Blazer, Sportsman, and Magnum, detailing their evolution from early 3-wheelers to robust 4-wheel drive machines. The engineering quality and reliability of these ATVs are supported by detailed procedures designed to maintain their performance and longevity. The scope of this 468-page English-language service and repair manual is extensive, offering complete overhaul, troubleshooting, and diagnostic procedures for all major systems. This includes in-depth coverage of the engine, fuel system, transmission, brakes, electrical components, body, and suspension. Specific maintenance tasks such as scheduled service, fluid changes, and component replacements are clearly outlined, alongside detailed repair instructions for complete tear-downs and rebuilds. Furthermore, the manual includes essential technical specifications, torque values, wiring diagrams, and troubleshooting guides, making it an indispensable resource for owners and technicians alike seeking to maintain and repair their ATVs.