This manual covers the 2006 Arctic Cat T660 Turbo Touring LE snowmobile, a model designed for comfortable and powerful long-distance touring. Engineered with a turbocharged 4-stroke engine and a Continuously Variable Transmission (CVT), this snowmobile delivers robust performance enhanced by its fuel injection system. Arctic Cat's heritage in snowmobile manufacturing is evident in the T660 Turbo Touring LE's focus on innovation, performance, and rider comfort, making it a distinguished offering in its segment. This comprehensive service repair workshop manual provides complete information for maintaining and repairing your 2006 Arctic Cat T660 Turbo Touring LE. It includes detailed procedures for scheduled maintenance, fluid changes, and lubrication, alongside step-by-step repair instructions and diagnostic guides for all major systems, including the engine, fuel, and chassis electrical components. With wiring schematics, technical specifications, and vehicle-specific details, this manual is an essential resource for owners and technicians seeking to ensure the optimal performance and longevity of their snowmobile.