The 2009 Sportsman 500 HO is a capable All-Terrain Vehicle (ATV) renowned for its blend of power and versatility, making it a popular choice for recreational trail riding, hunting excursions, and light utility tasks. This model features a robust 499cc liquid-cooled engine, Variable Transmission (PVT) with Engine Braking System (EBS), and On-Demand All-Wheel Drive (AWD), all built upon a durable chassis. Its independent rear suspension, comfortable ergonomics, and significant towing and cargo capacities further underscore its design for tackling diverse terrains and work requirements. This comprehensive service manual provides detailed guidance for the maintenance, diagnosis, and repair of the 2009 Sportsman 500 HO. It covers all essential systems, including complete engine, drivetrain, suspension, braking, and electrical systems, along with body and frame. Within its pages, you will find step-by-step procedures for scheduled maintenance, component replacement, and in-depth troubleshooting, supported by essential technical specifications, wiring diagrams, and the proper use of special tools. This resource is designed to empower owners and technicians to keep the ATV in optimal working condition.