Target Audience:
BMW R80, R90, and R100 motorcycle owners, independent repair shops, and enthusiasts seeking to perform their own maintenance and repairs.
Advantage:
Provides the same comprehensive information used by local service/repair shops, offering a professional-grade resource for DIY maintenance and repair.
Completeness:
Complete and intact, with no missing or corrupt parts/pages, offering hundreds of pages of diagrams and detailed information.
Accessibility:
Instant PDF download, eliminating shipping costs and wait times, with the ability to print specific sections as needed.
Cost Savings:
Empowers owners to perform repairs and maintenance themselves, saving significant costs on labor charges from dealerships or independent shops.
Engine:
Engine top end, Engine lubrication system, Fuel system, Cooling system.
Drivetrain:
Clutch, Crankshaft/Transmission, Final Drive.
Chassis:
Wheels/Tires, Brakes, Suspension, Steering, Frame.
Electrical:
Electrical System, Wiring Diagrams.
Maintenance:
General maintenance, fluid changes, adjustments, lubrication.
Repair:
Disassembly, assembly, cleaning, reinstallation, detailed repair procedures, troubleshooting.
Diagnostics:
Comprehensive diagnostic information, troubleshooting electrical systems.
Instructional Style:
Numbered instructions, detailed substeps, notes, cautions, and warnings to ensure accuracy and safety during repairs.
Depth:
Professional-level, including critical specifications, detailed diagrams, and step-by-step instructions, suitable for both basic maintenance and complex repairs.
Diagrams And Illustrations:
Includes detailed illustrations, drawings, and photos guiding through every procedure, with enlarged inset views for detailed part examination.
Covered Topics:
General information on the motorcycle, including model identification, chassis numbers, and basic operating principles.
Included Sections:
Appendix section typically contains supplemental data, such as special tools, torque specifications, and potentially historical technical bulletins or wiring diagrams.
Engine Type:
Air-cooled, four-stroke, boxer-twin cylinder engine (specific displacements for R80, R90, R100 models vary).
Typical Hp:
Varies by model (e.g., R80 ~50 HP, R90 ~65 HP, R100 ~70 HP). Precise figures would be detailed within the manual.
Typical Torque:
Varies by model and engine displacement. Specific torque figures are available in the manual.
Carburetion:
Typically dual carburetors (e.g., Bing carburetors). Manual covers fuel system maintenance and tuning.
Cooling Method:
Air Cooling. Manual details components and maintenance of the air cooling system.
Type:
5-speed manual transmission.
Options:
Not typically offered with automatic transmissions during this era. Manual details standard transmission components and servicing.
Clutch Type:
Dry single-plate or two-plate clutch (depending on specific model and year). Manual covers clutch inspection, adjustment, and replacement.
Safety Features:
While specific crash ratings for motorcycles of this era are not directly comparable to cars, the manual covers brake systems, suspension, and steering which are critical to safe operation.
Braking System:
Front and rear disc brakes (some early models may have drum rear). Manual details maintenance, bleeding, and repair of the braking system.
Frame Construction:
Steel tube frame. Manual covers frame inspection and potential repair.
Infotainment System:
Basic by modern standards. Typically a mechanical speedometer, tachometer, and indicator lights. Manual focuses on the mechanical and electrical systems.
Assistance Features:
None in the modern sense. Relies on rider skill and well-maintained mechanical components. Manual covers the maintenance of these components.
Connectivity Options:
N/A. Manual focuses on the core mechanical and electrical operation of the motorcycle.
Typical Oil Change:
Generally recommended every 5,000 - 10,000 km or annually, whichever comes first. Manual will provide specific intervals for different components and fluids.
Engine Oil:
Typically SAE 20W-50 or SAE 10W-40 motorcycle-specific oil. Manual will list exact BMW specifications and capacities.
Gearbox Oil:
Likely a GL-5 gear oil. Manual will specify viscosity and capacity.
Final Drive Oil:
Likely a GL-5 gear oil. Manual will specify viscosity and capacity.
Brake Fluid:
DOT 3 or DOT 4. Manual will specify type and bleeding procedures.
Common Wear Items:
Clutch wear, output shaft seal leaks, output bearing wear, carburetor synchronization issues, aging electrical connections, fork seal leaks. Manual addresses inspection and repair of these.
Routine Checks:
Checking tire pressures, chain tension (if applicable, though these are shaft drive), brake fluid levels, oil levels, and general fastener tightness.
Bmw Motorcycle Legacy:
BMW has a long and distinguished history in motorcycle manufacturing, known for engineering excellence, durability, and boxer engines. The R series represents a significant lineage.
R Series Development:
The R80, R90, and R100 models evolved from earlier BMW boxer twins, featuring chassis and engine improvements over their production run. This manual covers a significant portion of this evolution.
Production Period:
The R80, R90, and R100 models were produced over a broad period, with this manual specifically covering models from 1978 through 1996, encompassing significant updates and variations.