The 2007 Polaris 600 HO IQ CFI represents a performance-oriented trail and cross-country snowmobile, built upon the innovative IQ chassis. This model features a liquid-cooled, 2-stroke Liberty 600 HO engine equipped with CleanFire Injection (CFI) for enhanced performance, fuel efficiency, and reduced emissions. Its design prioritizes rider-forward ergonomics and a centralized mass for responsive handling, complemented by advanced front and rear suspension systems for comfort and control across varied terrain. Polaris has a long-standing heritage in snowmobile manufacturing, and the IQ chassis, introduced around 2005, marked a significant advancement in design, contributing to the model's reputation for strong performance and handling within its competitive segment. This comprehensive service repair manual provides detailed information for the complete maintenance and repair of the 2007 Polaris 600 HO IQ CFI Snowmobile. It covers a wide range of systems, including engine, fuel, powertrain, chassis, suspension, and electrical components, offering step-by-step procedures, detailed diagrams, and illustrations. The manual is designed for dealership technicians, certified repair shops, and experienced DIY mechanics, facilitating troubleshooting, diagnostics, adjustments, and component disassembly/reassembly. Its scope extends from basic pre-season preparation and periodic maintenance to in-depth engine rebuilds and electrical system diagnostics, ensuring the vehicle remains in optimal operating condition.