The Yamaha XS500, produced from 1976 to 1979, is a mid-size performance motorcycle distinguished by its unique 498cc DOHC parallel-twin engine. This air-cooled powerplant, featuring a bore and stroke of 78.0 mm x 52.0 mm and two valves per cylinder, delivered approximately 48-50 HP. Known for its comfortable ride and capable performance, the XS500 was a strong contender in its segment, often compared to models from Honda, Kawasaki, and Suzuki. Its engineering quality and reliability, when properly maintained, have contributed to its enduring appeal among enthusiasts.

This comprehensive Factory Service Manual provides detailed guidance for the maintenance and repair of the Yamaha XS500 models from 1976 through 1979. Covering a wide range of systems, including engine, transmission, chassis, braking, and electrical components, the manual offers expert-level repair procedures, routine maintenance schedules, and troubleshooting advice for common issues. It is an essential resource for owners, mechanics, and technicians seeking to preserve the performance and historical significance of this classic motorcycle, offering detailed specifications, torque values, and step-by-step instructions.