This manual covers the 1987 BMW R Series motorcycles, including the R80, R90/6, R90S, R100/7, R100S, R100CS, R100RS, R100RT, and R100GS models. These premium airhead motorcycles are renowned for their robust engineering, durability, and torque, making them highly regarded for touring and everyday riding. The air-cooled, four-stroke boxer-twin engines, with displacements ranging from 797.5 cc to 979.9 cc, deliver reliable performance, complemented by a 5-speed transmission and shaft drive. This series represents a significant and enduring era in BMW Motorrad's history, celebrated for its mechanical integrity and rider comfort.

This factory service repair manual provides comprehensive guidance for the maintenance and repair of your BMW R Series motorcycle. It covers all essential systems, including the engine, transmission, clutch, fuel and ignition systems, electrical components, brakes, and suspension. Detailed procedures for routine maintenance, component rebuilds, and troubleshooting common issues are included, along with torque specifications and clear wiring diagrams. This manual is an indispensable resource for owners, mechanics, and technicians seeking to preserve the performance and longevity of these iconic machines.