Positioning:
The BMW R 100 R was positioned as a premium, robust naked roadster, appealing to riders seeking a blend of classic BMW engineering with comfortable touring and sporting capabilities.
Competitors:
Competed with other large-displacement European and Japanese motorcycles of the era, offering a distinct shaft-drive, horizontally opposed twin-cylinder experience.
Features:
Characterized by its air-cooled boxer twin engine, Monolever rear suspension, reliable shaft drive, and understated yet durable build quality synonymous with BMW.
Years Covered:
1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
Estimated Pages:
Comprehensive (exact count not provided, typical for workshop manuals of this era)
Type:
Workshop Service Manual
Language:
English (presumed, standard for international sales)
Engine:
Complete overhaul, tuning, carburetor service, ignition system, cooling system (air-cooled)
Transmission:
Gearbox disassembly, assembly, maintenance, clutch service
Chassis:
Frame inspection, forks, rear suspension (monolever or dual shock depending on specific R100R variant if applicable)
Electrical:
Wiring diagrams, lighting, charging system, starter motor, ignition system troubleshooting
Brakes:
Front and rear brake system service, hydraulic components, pad replacement
Fuel System:
Fuel tank, fuel lines, fuel pump (if applicable), carburetor overhaul and adjustment (likely Bing carburetors)
Bodywork And Trim:
Fairings (if equipped), seat, fenders, exhaust system removal and installation
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug service, valve clearance adjustment
Troubleshooting:
Diagnostic guides for common problems, fault finding procedures
Repair:
Detailed step-by-step repair instructions for all major components
Disassembly And Assembly:
Complete instructions for component removal and reinstallation
Specifications And Tolerances:
Torque values, clearances, fluid capacities, and other critical specifications
Depth:
Comprehensive: Covers from basic routine maintenance to complete engine and transmission rebuilds, advanced diagnostics, and electrical system troubleshooting.
Quality:
High-resolution, searchable PDF with clear text and images.
Printability:
Printable pages for easy workshop use.
Binding:
N/A (Digital PDF Download)
Paper Type:
N/A (Digital PDF Download)
Engine Type:
Four-stroke, horizontally opposed twin-cylinder (Boxer)
Displacement:
980 cc (980cm³)
Bore X Stroke:
94 mm x 70.6 mm
Compression Ratio:
8.2:1 (typical for R100 models)
Valve Train:
Overhead valves (OHV), two valves per cylinder, pushrod operated
Cooling System:
Air-cooled
Horsepower:
Approx. 60-65 hp (45-48 kW) at ~6000 rpm (specific output varies slightly by year/tuning)
Torque:
Approx. 56-60 lb-ft (76-81 Nm) at ~3500 rpm (specific output varies slightly by year/tuning)
Carburetors:
Dual Bing 32/40/321 or similar (likely 40mm diameter)
Fuel Type:
Unleaded gasoline (premium recommended)
Fuel Tank Capacity:
Approx. 19 liters (5.0 US gallons)
Length:
Varies slightly by year/specific model, approximately 2180 mm
Width:
Varies slightly by year/specific model, approximately 850 mm
Height:
Varies slightly by year/specific model, approximately 1220 mm
Dry Weight:
Approx. 215-230 kg (dry weight, depending on equipment)
Wet Weight:
Approx. 235-250 kg (with all fluids, depending on equipment)
Safety Ratings:
No formal NCAP or equivalent ratings for motorcycles of this era; safety relies on rider skill and mechanical integrity.
Braking System:
Front: Dual disc brakes with hydraulic actuation; Rear: Single disc brake with hydraulic actuation. Often equipped with Brembo or similar quality components.
Suspension:
Front: Telescopic forks; Rear: Monolever swingarm with single shock absorber (or twin shocks on some early R100 variants, though R100R is typically Monolever).
Lighting:
Halogen headlight, taillight, brake lights, turn signals.
Oil Change Interval:
Every 5,000 - 7,500 km or annually (refer to manual for precise interval and oil type).
Valve Adjustment Interval:
Every 10,000 - 15,000 km.
Spark Plug Replacement:
Every 10,000 - 20,000 km, depending on plug type.
Engine Oil Type:
SAE 20W-40 or SAE 15W-50 motorcycle-specific oil (API SG or higher).
Engine Oil Capacity:
Approx. 2.5 - 3.0 liters (with filter change, refer to manual for exact capacity).
Gearbox Oil Type:
Gearbox oil SAE 80W/90 (API GL-5 recommended).
Gearbox Oil Capacity:
Approx. 0.75 - 1.0 liter.
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Common Wear Items:
Clutch wear, worn valve guides, potential for carburetors needing periodic cleaning and synchronization, aging electrical connectors, and output shaft seal leaks.
Reliability:
Generally considered very reliable and durable with proper maintenance, known for their longevity.
Heritage:
BMW Motorrad boasts a long history of producing reliable, robust, and technologically advanced motorcycles, particularly known for its boxer engine and shaft drive configurations.
Evolution:
The R 100 R is an evolution of the R 100 series, refined for the modern era with updated styling, Monolever suspension, and improved braking. It represents a peak of BMW's air-cooled boxer technology before the transition to oil-cooling.
Production Period:
1987-1996 (for the R 100 R model specifically)
Manufacturing Location:
Berlin, Germany
Recognitions:
While specific awards for the R 100 R model are not widely documented, BMW motorcycles of this era are consistently recognized for their build quality, engineering, and long-term value retention.
Owner Satisfaction:
High owner satisfaction due to reliability, performance, and classic appeal.
