The Polaris Sportsman 400 and 500 ATVs, manufactured in 2005, represent a significant offering in the all-terrain vehicle market. These models are engineered for robust performance and versatility, suitable for a wide range of off-road activities from utility work to recreational trail riding. The Sportsman line is renowned for its comfortable ride, capable handling, and durable construction, built upon extensive experience and innovation in ATV manufacturing. Key features include a liquid-cooled engine, automatic CVT transmission, and a selectable on-demand all-wheel-drive system, all contributing to their reputation for reliability and user-friendly operation in challenging terrains. This comprehensive service and parts manual package provides essential technical information for the 2005 Polaris Sportsman 400 and 500 ATVs. It covers all critical systems, including the engine, transmission, drivetrain, suspension, steering, brakes, and electrical components, offering detailed procedures for maintenance, diagnostics, and repair. The manual includes step-by-step instructions, torque specifications, and system diagrams to assist owners, mechanics, and technicians. With an estimated 500-700+ pages for the service manual and 200-300+ pages for the parts manual, this English-language resource is designed to facilitate effective upkeep, troubleshooting, and component identification, ultimately ensuring the longevity and optimal performance of these vehicles.