The 2009 Sportsman 800 EFI is a robust All-Terrain Vehicle (ATV) engineered for demanding off-road adventures and utility tasks. Renowned for its powerful 760cc liquid-cooled, 4-stroke, 90-degree V-twin engine, it delivers strong torque and horsepower, complemented by an Electronic Fuel Injection (EFI) system for enhanced throttle response and efficiency. The ATV features an On-Demand True All-Wheel Drive (AWD) system for superior traction in challenging terrain and independent front and rear suspension for a comfortable ride and ample ground clearance. With a substantial towing capacity of 1,500 lbs and rack capacities of 100 lbs front and 200 lbs rear, it is well-suited for both recreational trail riding and practical work. This comprehensive Factory Service Manual provides detailed guidance for the service and repair of the 2009 Sportsman 800 EFI. Covering over 500 pages, it includes in-depth information on engine overhaul, fuel system diagnostics, drivetrain maintenance, electrical system troubleshooting, braking system procedures, suspension and steering adjustments, and cooling system service. The manual also details scheduled maintenance, common wear items, and specific fluid requirements, offering step-by-step instructions for everything from basic oil changes to complete engine rebuilds. Its high-resolution format ensures clarity for owners, mechanics, and technicians performing maintenance and repairs.