The Grizzly 660 is a robust All-Terrain Vehicle (ATV) renowned for its powerful 660cc engine and exceptional off-road capability. Produced between 2001 and 2006, this model is celebrated for its durable engineering, reliability, and the On-Command® 4WD system, which includes a locking front differential for superior traction in challenging terrain. Designed for utility and recreation, the Grizzly 660 offers a comfortable riding experience with its stable chassis, effective suspension, and ergonomic controls, making it an ideal choice for demanding work or adventurous exploration. Its strong heritage and reputation for performance solidify its position as a trusted companion for tackling rough environments. This comprehensive Service Repair Workshop Manual provides in-depth coverage for the Grizzly 660 model years 2001 through 2006. It serves as an essential resource for owners, technicians, and mechanics, detailing everything from routine maintenance and scheduled service intervals to complete engine assembly, disassembly, and overhaul procedures. The manual covers all major systems, including the powertrain, chassis, braking, electrical, fuel, cooling, and exhaust systems, with detailed explanations, exploded diagrams, torque specifications, and diagnostic guides. Its professional-grade information ensures that all aspects of the vehicle can be understood, maintained, and repaired effectively, offering a cost-effective solution for keeping the Grizzly 660 in optimal working condition.