This comprehensive owner's manual provides detailed information for the 2009 Polaris Sportsman 400 ATV. It covers all aspects of your vehicle, from basic operation and maintenance to advanced troubleshooting and repair procedures. The manual includes detailed instructions on starting, driving, and operating your ATV safely and efficiently. It also offers comprehensive guidance on routine maintenance tasks such as oil changes, filter replacements, and tire pressure checks. Furthermore, the manual contains detailed diagrams, illustrations, and specifications to help you understand the inner workings of your ATV and perform necessary repairs and adjustments.