Target Audience:
BMW R850GS and R850R owners, DIY enthusiasts, independent repair shops, professional mechanics.
Manual Advantage:
Actual genuine factory manual, not a third-party publication, offering comprehensive and accurate data.
Value Proposition:
Enables owners to perform maintenance and repairs independently, saving significant labor costs ($50-$60 per hour), and ensuring correct procedures are followed.
Content Enhancements:
Detailed substeps, critical notes/cautions/warnings, numbered instructions, figure callouts, enlarged inset diagrams, indexed table of contents.
Engine Systems:
Engine top end, Fuel system, Cooling system, Engine lubrication system, Engine management systems, Crankshaft, Transmission
Drivetrain Systems:
Clutch, Crankshaft/Transmission, Wheels/Tires, Final Drive
Chassis Systems:
Brakes, Suspension, Steering, Frame
Electrical Systems:
Electrical System, Wiring diagrams
Diagnostic Procedures:
Engine fault symptom diagnosis, Advanced troubleshooting guide, Part testing techniques
Maintenance Procedures:
General maintenance, Scheduled servicing, Fluid checks and changes
Repair Procedures:
Step-by-step repair instructions, Engine removal/installation, Component overhaul and replacement
Specialized Procedures:
Tuning procedures, Secret techniques used by top mechanics
Depth:
Complete factory-level repair and maintenance information, suitable for both owners and professional technicians.
Wiring Diagrams:
Detailed and comprehensive wiring diagrams for the electrical system are a key feature, aiding in diagnosis and repair.
Appendix Content:
Includes general information, troubleshooting guides, and potentially technical data tables not fitting elsewhere.
Engine Type:
Air/oil-cooled, four-stroke flat-twin (boxer) engine
Bore X Stroke:
90.0 mm x 66.0 mm
Compression Ratio:
10.3:1
Horsepower:
70 hp (approx. 52 kW) at 7,250 rpm
Torque:
74.0 Nm (55 lb-ft) at 5,750 rpm
Fuel Delivery:
Electronic fuel injection (Bosch Motronic MA 2.4)
Fuel Type:
Unleaded gasoline, minimum octane rating 91 (RON+MON)/2
Ignition:
Digital ignition with knock sensor
Length:
Specific lengths for GS and R models differ; manual would contain exact figures.
Width:
Specific widths for GS and R models differ; manual would contain exact figures.
Height:
Specific heights for GS and R models differ; manual would contain exact figures.
Dry Weight:
R850R: approx. 207 kg (456 lbs); R850GS: approx. 215 kg (474 lbs)
Gross Vehicle Weight Rating:
Specified in manual, typically around 400-440 kg.
Fuel Tank Capacity:
R850R: 20 Liters (5.3 US gal); R850GS: 20 Liters (5.3 US gal) (some sources indicate 30L for GS)
Certification:
CE homologation, meets relevant EU safety standards.
Braking System:
Optional ABS II system available for specific models/markets.
Lighting:
Halogen headlamp, LED taillight and indicators.
Chassis Design:
Robust steel tube frame providing stability.
Instrumentation:
Analog tachometer, digital speedometer, odometer, trip odometer, clock, gear indicator, fuel gauge, warning lights.
ABS:
Optional ABS II system available on some models for enhanced braking safety.
Diagnostics:
On-board diagnostics (OBD) port for electronic system checks, with factory diagnostic tools covered in the manual.
Oil Change:
Every 10,000 km (6,000 miles) or annually, whichever comes first.
Major Service:
Every 20,000 km (12,000 miles) or every two years, typically includes valve adjustment, spark plug replacement, and fluid flushes.
Engine Oil:
BMW Motorrad Advantec Ultimate Performance Engine Oil SAE 15W-50 (or equivalent API SG/JASO MA specification).
Gearbox Oil:
BMW Gear Oil SAE 75W/90 (or equivalent API GL-5 specification).
Final Drive Oil:
BMW Hypoid Gear Oil SAE 85W/90 (or equivalent API GL-5 specification).
Brake Fluid:
DOT 4 brake fluid.
Coolant:
BMW Antifreeze/Coolant (blue) mixed with distilled water at a 1:1 ratio.
Common Wear Items:
Clutch wear, swingarm pivot bearings, alternator brushes, fuel pump issues, starter motor solenoid.
Electrical Faults:
Wiring harness chafing, regulator/rectifier failures, dashboard indicator light issues.
Heritage:
BMW Motorrad, established in 1923, renowned for boxer engines, durable touring bikes, and adventure motorcycles.
Genesis:
The R850 series was introduced as a more accessible and slightly less powerful alternative to the R1100 series, sharing many components and design philosophies. The R850GS offered adventure-touring capabilities, while the R850R provided a standard roadster experience.
Manufacturing Location:
Berlin, Germany (BMW Motorrad plant)
Production Years:
1996-2006
