This comprehensive BMW R80, R90, and R100 Service and Repair Workshop Manual provides detailed instructions for maintaining and repairing your 1981 motorcycle. It is a valuable resource for both professional mechanics and knowledgeable DIY enthusiasts. The manual encompasses a wide range of topics covering every aspect of your motorcycle, ensuring you have the information you need to perform any task with confidence. From routine maintenance like oil changes and filter replacements to more complex repairs like engine overhauls and electrical system troubleshooting, this manual offers step-by-step guidance with clear diagrams and illustrations. It includes detailed specifications, torque settings, and wiring diagrams.

The BMW R80, R90, and R100 motorcycles, produced from 1978 to 1984, are iconic examples of classic German engineering and design. These air-cooled, two-cylinder boxer engine motorcycles, known for their distinctive horizontal cylinder arrangement, offered a blend of performance, reliability, and comfort. The R80, with its 797cc engine, was the base model, followed by the R90, which featured a 901cc engine, and the R100, boasting a 980cc powerplant. These motorcycles, built on a robust steel frame, were renowned for their smooth engine operation, comfortable riding position, and durable construction. The telescopic front forks and monoshock rear suspension provided a balanced handling experience, while the drum brakes, later replaced by optional disc brakes, offered reliable stopping power. The R80, R90, and R100 motorcycles became popular choices for riders seeking a well-rounded and reliable machine for touring, commuting, or leisurely rides. These classic BMW motorcycles, often referred to as "Airheads," attracted a loyal following for their versatility and timeless appeal. They were available in a variety of configurations, including standard, touring, and sport versions, each catering to a specific riding style. The R80, R90, and R100 motorcycles were also popular among customizers, with owners often modifying them to suit their individual tastes. The aftermarket support for these models remained strong, with numerous parts and accessories readily available. Over the years, these motorcycles have become highly sought after collector's items, with enthusiasts appreciating their historical significance, mechanical simplicity, and enduring quality. The BMW R80, R90, and R100 motorcycles continue to capture the imagination of riders, offering a glimpse into a bygone era of motorcycle design and engineering.