This manual covers the BMW R80, R90, and R100 series motorcycles produced in 1983. These iconic Boxer twin-cylinder motorcycles are renowned for their engineering quality, reliability, and robust design, representing BMW's long-standing heritage in motorcycle manufacturing. The R80, R90, and R100 models offer refined touring and sport-touring capabilities, built with precision at BMW's Berlin factory. They feature air-cooled, four-stroke Boxer engines with displacements ranging from approximately 797.5 cc for the R80 to 979.5 cc for the R100, typically paired with dual Bing carburetors and a 5-speed transmission. Their robust chassis, shaft drive, and effective braking systems, including disc brakes, contribute to their enduring appeal among enthusiasts.

This comprehensive factory service repair manual provides detailed information essential for the maintenance and repair of your BMW motorcycle. It covers all major systems, including the engine, fuel system, ignition, transmission, brakes, suspension, and electrical components, with specific sections dedicated to the R80, R90, and R100 variants. The manual includes routine maintenance procedures, in-depth troubleshooting guides, engine rebuild instructions, and specifications for all critical areas, such as torque values and clearances. Whether you are an owner or a professional mechanic, this manual serves as an authoritative resource for ensuring the optimal performance and longevity of your classic BMW motorcycle.