This comprehensive service repair manual provides detailed instructions and diagrams for maintaining and repairing your 1978-1996 BMW R80GS R100R motorcycle. It covers every aspect of your machine, from basic maintenance procedures to complex engine rebuilds, making it an essential tool for both novice and experienced mechanics. The manual features clear and concise text sections accompanied by high-quality diagrams and illustrations that guide you through each repair step. It systematically addresses every component of your motorcycle, including: * **General information** covering the basics of your R80GS R100R, including specifications and safety procedures. * **Frame, Body Panels, and Exhaust System** detailing the construction and repair of these essential components. * **Maintenance** outlining regular service schedules and procedures, ensuring your motorcycle runs smoothly. * **Lubrication System** explaining the operation and maintenance of your engine's oil system. * **Cooling System** guiding you through the operation and repair of the cooling system. * **Fuel System** covering the intricate details of your fuel delivery system. * **Engine Removal and Installation** providing step-by-step instructions for removing and reinstalling your engine. * **Cylinder Head and Valve** covering the disassembly, repair, and reassembly of these critical components. * **Clutch and Gearshift Linkage** explaining the operation and repair of your clutch and gearshift mechanisms. * **Alternator and Starter Clutch** detailing the maintenance and repair of your electrical system components. * **Crankcase and Transmission** providing comprehensive information on these essential engine components. * **Crankshaft, Piston, and Cylinder** addressing the repair and replacement of these internal engine parts. * **Front Wheel, Suspension, and Steering** explaining the operation and repair of your front end. * **Rear Wheel and Suspension** covering the maintenance and repair of your rear suspension. * **Hydraulic Brakes** detailing the operation and repair of your braking system. * **Battery and Charging System** providing instructions for maintaining and troubleshooting your motorcycle's electrical system. * **Ignition System** explaining the function and repair of your ignition system. * **Electric Starter** addressing the operation and repair of your starter motor. * **Lights, Meters, and Switches** covering the repair and replacement of electrical components. * **Wiring Diagram** providing a detailed visual guide to your motorcycle's electrical system. * **Troubleshooting** offering information on diagnosing and resolving common problems. * **Index** providing a comprehensive index for quick and easy reference. This service repair manual is your one-stop resource for maintaining and repairing your 1978-1996 BMW R80GS R100R motorcycle. With its detailed instructions and clear illustrations, it empowers you to perform a wide range of repairs and keep your iconic machine running smoothly for years to come.

The 1978-1996 BMW R80GS and R100R were groundbreaking motorcycles that redefined off-road adventure. Launched in 1980, the R80GS was the first production motorcycle specifically designed for long-distance travel and off-road exploration. It featured a robust air-cooled boxer engine, a durable steel frame, and innovative long-travel suspension with Telelever front forks. The R100R, introduced in 1982, shared the same engine and chassis as the R80GS but was designed for road riding. Both models were renowned for their rugged reliability, comfortable riding position, and impressive performance. They were popular among experienced riders and newcomers alike, offering a perfect combination of power, handling, and versatility. The R80GS and R100R models were equipped with a 797cc or 980cc air-cooled, horizontally opposed, two-cylinder boxer engine respectively. This engine, renowned for its smooth power delivery and durability, offered a potent combination of low-end torque and high-RPM performance. The bikes featured a constant-mesh five-speed gearbox, providing smooth and dependable gear changes. The R80GS and R100R were known for their strong and reliable braking system, employing dual front disc brakes and a single rear disc brake. They also featured a robust, fully adjustable suspension capable of handling rough terrain and providing a comfortable ride on paved roads. With a focus on practicality and functionality, these motorcycles represented a significant advancement in adventure touring and paved the way for future BMW GS models.