The ATV 400 2x4, also known as the Sportsman 400, is a versatile mid-size utility ATV designed for recreational riders and farm operators. Produced for the 1994 and 1995 model years, this North American market vehicle features a 377cc single-cylinder, liquid-cooled, 4-stroke engine with a SOHC valve train and CDI ignition. Its 2x4 drivetrain emphasizes agility, complemented by an automatic CVT transmission and a comfortable ride provided by independent front suspension and a swingarm rear suspension. With a robust front and rear rack system capable of carrying cargo, the Sportsman 400 offers practicality for various tasks. This comprehensive service repair workshop manual provides essential information for maintaining and repairing the ATV 400 2x4. Covering over 300 pages in English, it details routine maintenance procedures, including oil changes, filter replacements, and component inspections, alongside in-depth troubleshooting guides and step-by-step repair instructions for all major systems. Key areas include engine mechanicals, fuel and ignition systems, cooling, transmission, suspension, brakes, and the electrical system, all supported by detailed wiring diagrams, torque specifications, and rebuild instructions. This manual is an indispensable resource for owners and technicians to ensure the optimal performance and longevity of the vehicle.