The K1100LT and K1100RS represent a significant evolution in sport touring and touring motorcycle offerings, produced approximately between 1991 and 1996. These models are characterized by their robust four-stroke, four-cylinder boxer engines, displacing 1093 cc and producing around 100 horsepower, coupled with a smooth 5-speed transmission and the innovative Paralever shaft drive system. Known for their exceptional touring comfort, reliable engineering, and strong build quality, the K1100 series built upon the legacy of the K100 series with key enhancements such as increased displacement, improved aerodynamics, and refined suspension, solidifying the reputation for producing capable and dependable motorcycles. This comprehensive factory service manual provides extensive information for the K1100LT and K1100RS. It covers all essential aspects of maintenance, diagnostics, troubleshooting, and repair, including detailed procedures for the engine, fuel injection system, transmission, brakes, suspension, and electrical systems. The manual is designed to assist owners, independent repair shops, and experienced mechanics in performing all necessary servicing, from routine maintenance and fluid changes to complex component disassembly and reassembly, ensuring the longevity and optimal performance of the motorcycle.