This comprehensive BMW R80, R90, and R100 Service and Repair Workshop Manual provides in-depth guidance for maintaining and repairing your 1978 motorcycle. The manual, originally used by professional mechanics, offers detailed instructions covering all aspects of service and repair. It includes detailed diagrams, exploded views, and step-by-step procedures to help you confidently tackle any job. From basic maintenance like oil changes and tune-ups to complex engine rebuilds and electrical system troubleshooting, this manual is your ultimate resource for keeping your classic BMW motorcycle in top condition.

The BMW R80, R90, and R100 motorcycles represent a classic era in BMW's history, known for their robust construction, reliable performance, and distinctive styling. These air-cooled, horizontally opposed twin-cylinder (boxer) machines were produced from 1978 to 1985, establishing themselves as stalwart companions for touring enthusiasts and daily commuters alike. They offered a unique blend of power, handling, and comfort that cemented their reputation as dependable and enduring motorcycles. The R80 was the entry-level model, boasting a 797cc engine and a reputation for smooth and fuel-efficient operation. The R90, with its 901cc engine, delivered a noticeable increase in power, making it a more capable touring machine. The top-of-the-line R100, featuring a 980cc engine, emerged as the performance leader, offering a more spirited ride for those seeking a slightly more aggressive experience. Each model shared a common design philosophy, with a tubular steel frame, telescopic front forks, and a swingarm rear suspension. While the R80 was often equipped with a single front disc brake, the R90 and R100 benefited from dual-disc brakes for enhanced stopping power. The distinctive styling, featuring a round headlight, a classic fuel tank, and a low-slung seat, contributed to the motorcycles' timeless appeal. The integration of an electric starter, combined with the efficient boxer engine, provided a hassle-free and enjoyable riding experience. These motorcycles are widely regarded as a testament to BMW's engineering prowess and continue to hold a special place in the hearts of vintage motorcycle enthusiasts, appreciated for their rugged character and classic charm.