The Yamaha Raptor YFM 660 is a high-performance sport ATV, renowned for its powerful 660cc engine and agile handling, making it a standout in its class. Produced from approximately 2001 to 2005, this model established new benchmarks for aggressive trail riding and recreational use. Its robust engineering, characteristic of its commitment to durability, ensures reliable performance. Key features include a potent 4-stroke, liquid-cooled, SOHC, 5-valve engine delivering strong torque, and a capable suspension system designed for optimal off-road dynamics. The Raptor YFM 660 is recognized for its significant industry impact and positive performance reviews, solidifying its reputation as a groundbreaking sport ATV.

This comprehensive service manual provides detailed information for maintaining and repairing the Yamaha Raptor YFM 660 ATV. It covers a wide array of essential areas, including general information, technical specifications, periodic checks and adjustments, and in-depth coverage of the chassis, engine, cooling system, carburetion, and electrical system. The manual includes procedures for routine maintenance, troubleshooting diagnostics, engine and transmission overhauls, carburetor tuning, and electrical component testing. With 328 pages of English content, this service manual serves as an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their vehicle.