This comprehensive factory service repair manual provides everything you need to service and repair your 2009 Polaris Sportsman 400 HO ATV. It includes detailed instructions, diagrams, and specifications covering every aspect of your ATV, from the engine and transmission to the electrical system, brakes, and suspension. With hundreds of pages of information, this manual is an essential resource for anyone who wants to perform their own repairs or maintenance on their Sportsman 400 HO. You'll find step-by-step procedures for everything from routine maintenance, such as oil changes and air filter cleaning, to more complex repairs, such as engine rebuilds and transmission overhauls. This manual is written in a clear and concise manner, making it easy to understand and follow even for novice mechanics.

The Polaris Sportsman 400 HO, introduced in 2009, is a robust and versatile ATV designed for a wide range of outdoor activities. Powered by a powerful 399cc, liquid-cooled, four-stroke engine, the Sportsman 400 HO boasts impressive power and torque, allowing it to tackle demanding terrain with ease. Its electronic fuel injection system ensures reliable starting and smooth performance, even in varying environmental conditions. Featuring a rugged steel frame and independent suspension, the Sportsman 400 HO provides a comfortable and controlled ride, absorbing bumps and tackling uneven surfaces effortlessly. The ATV is equipped with a sealed, maintenance-free battery, eliminating the need for constant battery care. Additionally, an efficient braking system with hydraulic disc brakes on the front and rear wheels offers reliable stopping power, ensuring safety in all types of riding conditions. The Sportsman 400 HO caters to a diverse range of users, from recreational riders to farmers and landowners. Its impressive towing capacity makes it ideal for hauling light-duty loads, while its versatility allows for various recreational activities like hunting, fishing, and trail riding. Its intuitive controls and comfortable design make it an excellent choice for both experienced riders and beginners. The ATV comes equipped with a spacious cargo bed and numerous accessory mounting points, offering ample storage options and the ability to customize the machine to meet individual needs. Its durable construction and reliable performance have earned it a reputation for dependability and longevity, making it a popular choice among ATV enthusiasts.