The Yamaha XS1100E, produced between 1978 and 1981, stands as a significant entry in Yamaha's history of large-displacement motorcycles. As the brand's flagship model in the premium sport-touring segment, it competed with other major manufacturers by offering a robust inline-four, DOHC, air-cooled engine displacing 1097 cc, coupled with a smooth and reliable shaft drive. This model emphasized strong mid-range torque and comfortable touring capabilities, solidifying its position as a benchmark for its class during its production years. Its engineering quality and performance made it a notable choice for riders seeking a powerful and refined touring experience. This comprehensive Factory Service Repair Manual provides detailed guidance for the maintenance, repair, and troubleshooting of the Yamaha XS1100E for the model years 1978 through 1981. It covers all essential systems, including the engine, fuel, ignition, transmission, drivetrain, suspension, brakes, and electrical components. The manual offers step-by-step procedures for routine maintenance, detailed engine and component rebuilds, as well as advanced diagnostic techniques for both mechanical and electrical systems. Its purpose is to serve as an authoritative resource for owners, mechanics, and technicians, ensuring the longevity and optimal performance of the XS1100E.