This comprehensive service manual for the 1990 BMW R100 motorcycle is designed to provide detailed instructions and technical specifications for repair and maintenance procedures. The manual covers a wide range of topics, including engine, transmission, electrical system, brakes, suspension, and bodywork. It is an invaluable resource for professional technicians as well as experienced DIY mechanics who want to perform their own repairs and maintenance on this classic motorcycle.

The BMW R100, produced from 1976 to 1996, is a classic motorcycle known for its robust build, reliable engine, and timeless design. The 1990 model year, in particular, represents the culmination of the R100 series' evolution, incorporating refinements and improvements that solidified its status as a revered motorcycle. This model featured an air-cooled, horizontally-opposed 980cc boxer twin engine, renowned for its smooth power delivery, exceptional torque, and enduring reliability. The engine was paired with a 5-speed transmission, offering a versatile gear ratio suitable for both city riding and open-road adventures. The R100's chassis was built around a tubular steel frame, providing a sturdy and responsive handling platform. The telescopic front fork and rear swingarm with twin shock absorbers offered a comfortable ride and predictable handling, making it a capable and enjoyable motorcycle to ride. The 1990 BMW R100 was a testament to the brand's commitment to engineering excellence and timeless design. It possessed a robust and reliable nature, making it a popular choice for experienced riders and newcomers alike. Its simple yet effective design emphasized practicality and functionality, ensuring a satisfying ownership experience. Whether cruising through winding country roads, commuting through city streets, or embarking on long-distance journeys, the R100 provided a blend of comfort, performance, and reliability rarely seen in other motorcycles of its era. The 1990 R100's enduring appeal can be attributed to its timeless design, robust build, and reliable performance, making it a sought-after motorcycle for enthusiasts and collectors alike.