The 2009 Sportsman 400 is a versatile All-Terrain Vehicle (ATV) designed for both recreational riding and light utility tasks. Engineered for reliability and maneuverability, this model represents a strong offering in the entry-level to mid-range utility ATV segment. Its robust 376 cc, liquid-cooled, 4-stroke engine, coupled with an automatic Variable Transmission (PVT) and On-Demand All-Wheel Drive, provides capable performance across various terrains. With a focus on value for money and practical features, the Sportsman 400 is well-suited for enthusiasts and those requiring a dependable workhorse for outdoor activities. This comprehensive factory service manual provides complete workshop repair and maintenance information for the 2009 Sportsman 400. Covering all essential systems, including the engine, drivetrain, fuel, cooling, electrical, brakes, suspension, and steering, this manual details routine maintenance procedures, diagnostic troubleshooting, and component removal and installation. It also includes critical technical specifications and detailed diagrams necessary for accurate repairs and upkeep. This resource is invaluable for owners and technicians seeking to maintain the performance, reliability, and longevity of their Sportsman 400 ATV.