Market Segment:
Mid-size touring and adventure motorcycle segment, known for BMW's build quality and reliability.
Key Competitors:
Honda Africa Twin (early models), Suzuki V-Strom (later models), Moto Guzzi Quota, Yamaha TDM.
Model Selling Points:
Torquey Boxer engine, shaft drive, comfortable ergonomics for touring, excellent build quality, robust chassis.
Benefit To Owner:
Empowers owners to perform routine maintenance, diagnose issues, and undertake complex repairs, saving on dealership costs and extending motorcycle lifespan.
Applicable Model Years:
1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Estimated Page Count:
300-400 pages (estimated based on typical workshop manuals for this era and model complexity)
Manual Type:
Workshop Service Repair Manual
Format:
Digital (Likely PDF)
Engine Mechanical:
Engine assembly, disassembly, overhaul, timing, lubrication, cooling system
Fuel System:
Fuel injection system (Bosch Motronic), fuel pump, injectors, sensors, fuel tank, lines
Ignition System:
Ignition system components, timing, spark plugs
Transmission Drivetrain:
Clutch, gearbox (5-speed sequential), final drive (shaft drive), rear differential
Suspension:
Front telescopic forks (BMW Telelever on some models), rear monolever swingarm, shock absorber adjustments
Brakes:
Front and rear hydraulic disc brakes, ABS system (optional), brake fluid, caliper overhaul
Electrical System:
Wiring diagrams, battery, charging system (alternator, regulator), lighting, starting system, fuses, relays, instrument cluster
Bodywork Chassis:
Frame, fairings, seat, handlebars, body panels, luggage systems (optional)
Diagnostics Troubleshooting:
Common faults, symptom-based troubleshooting guides, diagnostic procedures
Routine Maintenance:
Oil changes, filter replacements, spark plug service, valve clearance checks, chain adjustment (if applicable, though shaft drive here), brake system checks
Major Repairs:
Engine rebuild, gearbox overhaul, clutch replacement, suspension overhaul, electrical system repairs
Diagnostic Procedures:
Fault code reading (if applicable via diagnostic port), sensor testing, electrical circuit testing
Component Replacement:
Detailed step-by-step instructions for replacing all major and minor components
Depth Of Coverage:
Comprehensive, suitable for professional technicians and advanced DIY mechanics. Covers everything from basic checks to full engine and gearbox rebuilds.
File Format Details:
Likely PDF, enabling digital searchability and printing. Quality typically reflects original scans or typeset documents.
Print Quality Description:
Digital format usually offers high clarity for text and diagrams, though original source quality may vary. Printable pages are expected.
Binding Type Description:
N/A (Digital Format)
Paper Type Description:
N/A (Digital Format)
Engine Type:
Four-stroke, air-cooled, horizontally opposed boxer twin
Bore X Stroke:
90.0 mm x 66.0 mm
Compression Ratio:
10.0:1
Valve Train:
2 valves per cylinder, overhead camshaft (OHC), pushrod actuated (historically, but OHC is more accurate for this era BMW boxers)
Horsepower:
Approx. 70-75 hp @ 7,500 rpm (depending on market and specific variant)
Torque:
Approx. 75 Nm (55 lb-ft) @ 5,500 rpm
Fuel Delivery:
Bosch Motronic Electronic Fuel Injection (EFI) with single throttle body (48mm)
Fuel Type:
Unleaded gasoline, 95 RON (octane rating) recommended
Oil Capacity:
Approx. 3.0 liters (3.2 US quarts) with filter change
Recommended Oil:
SAE 15W-50 or 20W-50 API SG or higher (refer to manual for exact specifications)
Cooling Method:
Air-cooled (oil cooler fitted)
Transmission Type:
5-speed manual gearbox
Optional Features:
N/A (Standard 5-speed)
Final Drive:
Shaft drive with Paralever system (on GS model), enclosed bevel gear drive
Clutch Type:
Single dry plate, diaphragm spring clutch (cable operated)
Gear Ratios:
Refer to manual for specific gear ratios (typically a mix for balanced touring and off-road capability on GS)
Transmission Oil Capacity:
Approx. 1.2 liters (1.3 US quarts) of SAE 90 API GL-5 gear oil
Length:
R850R: Approx. 2170 mm (85.4 in), R850GS: Approx. 2230 mm (87.8 in)
Width:
R850R: Approx. 800 mm (31.5 in), R850GS: Approx. 870 mm (34.3 in) (including mirrors)
Height:
R850R: Approx. 1250 mm (49.2 in), R850GS: Approx. 1350 mm (53.1 in) (seat height variable)
Wheelbase:
R850R: Approx. 1430 mm (56.3 in), R850GS: Approx. 1450 mm (57.1 in)
Dry Weight:
R850R: Approx. 197 kg (434 lbs), R850GS: Approx. 215 kg (474 lbs)
Gross Vehicle Weight Rating:
Refer to manual; typically around 400 kg (880 lbs)
Fuel Tank Capacity:
R850R: 20 liters (5.3 US gal), R850GS: 30 liters (7.9 US gal)
Seat Height:
R850R: Approx. 760 mm (30 in), R850GS: Approx. 820 mm (32.3 in) (adjustable)
Crash Test Results:
N/A (Motorcycle safety ratings are generally not provided in the same format as cars)
Braking System:
Dual front discs, single rear disc. Optional ABS II anti-lock braking system available on some models.
Lighting:
Halogen headlamp, LED taillight (typical for era), integrated turn signals.
Chassis Design:
Steel trellis frame, designed for stability and handling. Engine serves as a stressed member.
Ergonomics:
Designed for rider comfort and control during long-distance touring and varying conditions.
Infotainment System:
N/A (This era motorcycle prioritizes mechanical function over digital infotainment)
ABS:
Optional ABS II system available, providing anti-lock braking for enhanced safety.
Instrument Cluster:
Analog speedometer and tachometer, fuel gauge, odometer, trip meter, warning lights for oil pressure, neutral, turn signals, high beam.
Oil Change Interval:
Every 10,000 km (6,200 miles) or annually, whichever comes first.
Major Service Interval:
Every 20,000 km (12,500 miles) including valve clearance checks, spark plug replacement, brake fluid flush.
Valve Clearance Interval:
Every 20,000 km (12,500 miles)
Engine Oil Specification:
SAE 15W-50 or 20W-50, API SG or higher (refer to manual for precise details and alternatives).
Brake Fluid Specification:
DOT 4, preferably BMW-approved or equivalent.
Transmission Oil Specification:
SAE 90 API GL-5 gear oil.
Coolant Specification:
N/A (Air-cooled engine)
Common Wear Items:
Clutch wear, brake pad wear, fork seals, exhaust system corrosion (depending on climate), fuel pump reliability.
Electrical Quirks:
Older wiring can degrade; check for corrosion in connectors and switches. ABS sensor issues can occur.
Engine Specifics:
While generally robust, oil leaks from crankcase seals can develop over time. Valve adjustment is critical for smooth running.
Bmw Motorrad History:
BMW Motorrad boasts a rich history of innovation and engineering excellence since its inception in 1923, particularly known for its boxer engines and shaft drive systems.
R Series Legacy:
The R850R and R850GS are part of BMW's long-standing R-series lineage, evolving from iconic models like the R100 series, offering a balance of performance and accessibility.
Production Period:
1994-2001 (for the R850R and R850GS variants covered by this manual).
Manufacturing Location:
Berlin, Germany (Spandau plant)
Model Awards:
While specific awards for the R850R/GS might be scarce, BMW motorcycles of this era were consistently praised for their build quality, reliability, and touring capability by automotive journalists and riders.
Reliability Reputation:
High, known for enduring quality and longevity when properly maintained.
Emissions Standards:
Compliant with European emissions standards of the time (Euro 1 or similar).
