This comprehensive factory service manual covers the 2006 Polaris snowmobile 2-stroke models. Polaris, a manufacturer with a rich heritage in powersports, produced these machines during a competitive period, focusing on performance and rider experience. The 2006 lineup, including models like the 340 Classic, 500 Indy, 600 HO Dragon Fusion, and 900 Switchback, represents a significant evolution in snowmobile technology, particularly with the refinement of the Fusion chassis and Liberty engines. These vehicles are engineered for demanding winter conditions, offering a blend of power and agility for recreational riding and trail exploration. This manual is designed to provide in-depth technical information for owners, mechanics, and technicians. It details maintenance schedules, fluid specifications, and troubleshooting guides for common issues, covering all major systems including the engine, fuel, ignition, drivetrain, suspension, and braking systems. Procedures range from basic preventative maintenance and component adjustments to complete engine rebuilds and advanced diagnostics for both carbureted and fuel-injected 2-stroke engines. The manual's extensive coverage ensures that users can effectively maintain, repair, and diagnose a wide array of potential problems, keeping their 2006 Polaris snowmobile in optimal operating condition.