This service manual covers the Yamaha RX-1100 U, a powerful motorcycle equipped with a 1099 cc, 2-stroke, liquid-cooled, twin-cylinder engine. Its robust engineering is evident in its dual Mikuni VM38SS carburetors, constant mesh 6-speed transmission with a wet, multiple-disc clutch, and CDI ignition system. The chassis features telescopic front forks and a monoshock rear suspension, complemented by front and rear disc brakes, designed for performance and reliability.

This comprehensive English-language service manual provides essential information for maintaining and repairing the Yamaha RX-1100 U. It details critical procedures, technical specifications, and troubleshooting guidance to ensure optimal performance and longevity. Owners, technicians, and mechanics will find detailed instructions on engine operation, lubrication, chassis components, and electrical systems, enabling effective upkeep and repair.