This manual covers the 2004 Polaris Deep Snow Series Snowmobiles, including the RMK, Switchback, and Trail models, equipped with 600cc, 700cc, or 800cc engine variants. Polaris snowmobiles are engineered for robust performance and reliability, with this series specifically designed to excel in various snow conditions, from deep powder mountain riding to groomed trails. The RMK models are built for challenging mountain terrain, the Switchback offers versatility for crossover riding, and the Trail models are optimized for groomed trails. These machines represent a significant period in Polaris's legacy of innovation and performance in the snowmobile industry. This comprehensive workshop repair service manual provides detailed information for the service, maintenance, repair, troubleshooting, and diagnostics of your 2004 Polaris snowmobile. It covers all major systems, including the engine, fuel and ignition, drivetrain, chassis and suspension, and electrical systems. With step-by-step repair instructions, diagnostic procedures, and troubleshooting guides, this manual is an essential resource for Polaris snowmobile owners, DIY enthusiasts, and independent repair shops. It ensures that your snowmobile can be maintained and repaired to factory standards, maximizing performance and longevity.