This manual covers the BMW R80, R90, and R100 series motorcycles from the 1990 model year. These iconic air-cooled boxer twins, manufactured in Berlin, Germany, are renowned for their robust engineering, reliability, and touring capabilities, stemming from BMW's long heritage in motorcycle production. The R-series models, featuring displacements ranging from 797.5 cc to 979.5 cc, offer distinct performance characteristics and utilize advanced chassis designs for their era, including Monolever and Paralever rear suspension systems. Their enduring appeal lies in their distinctive character and the quality associated with German engineering.

This comprehensive service and repair manual provides detailed guidance for maintaining and repairing your BMW R80, R90, or R100. It covers all essential systems, including the engine, transmission, drivetrain, chassis, and electrical components, with specific procedures for disassembly, assembly, diagnosis, and tuning. The manual includes scheduled maintenance tasks, troubleshooting guides for common issues, and step-by-step repair instructions. By utilizing the torque specifications, fluid capacities, and detailed wiring diagrams within this English-language resource, owners and technicians can ensure the optimal performance and longevity of these classic motorcycles.