The 2006 Arctic Cat T660 Turbo Touring LE represents a sophisticated luxury touring snowmobile, engineered for enthusiasts who prioritize comfort, cargo capacity, and reliable performance during extended excursions. This model features a robust four-stroke, turbocharged, liquid-cooled, inline-3 cylinder engine with electronic fuel injection, delivering approximately 110-120 horsepower and ample torque for challenging terrain and passenger loads. Its design emphasizes a comfortable rider position and a touring-oriented chassis, making it well-suited for multi-day adventures. The T660 Turbo Touring LE builds on Arctic Cat's heritage of innovation, offering a blend of power and refinement within the high-end touring snowmobile segment. This comprehensive service and repair manual provides detailed information for all 2006 Arctic Cat T660 Turbo Touring LE snowmobiles. It covers an extensive range of systems, including the turbocharged engine, drivetrain, electrical components, chassis, body, and braking system. The manual offers step-by-step instructions for scheduled maintenance, troubleshooting common and uncommon issues, and performing complete repairs, from basic fluid changes to complex engine rebuilds and electrical diagnostics. With detailed procedures, diagnostic flowcharts, and color-coded wiring diagrams, this manual is an essential resource for owners, mechanics, and technicians to ensure the optimal performance, reliability, and longevity of their snowmobile.