The Yamaha XT660, produced in 2004, is a versatile dual-sport and supermoto motorcycle renowned for its robust 660cc liquid-cooled engine featuring Electronic Fuel Injection (EFI). Building on Yamaha's esteemed XT lineage, this model offers a blend of off-road capability and on-road performance, typically available in XT660R and XT660X configurations. Its design emphasizes reliability and a strong torque output, making it a capable machine for various riding conditions. The motorcycle is equipped with long-travel adjustable suspension, hydraulic disc brakes, and a digital instrument cluster, reflecting its modern engineering and rider-focused features.

This Factory Service Repair Manual provides comprehensive guidance for the Yamaha XT660 2004. It covers all essential aspects of maintenance, repair, and troubleshooting, including detailed procedures for the engine, fuel system, ignition, cooling, transmission, chassis, braking, and electrical systems. The manual is designed to assist owners, mechanics, and technicians in performing routine maintenance, diagnosing issues, and executing complex repairs. With an estimated 300-400 pages, it offers in-depth information suitable for both novice and experienced users seeking to maintain their XT660 in optimal condition.