Vehicle Segment:
Touring/Adventure Motorcycle
Target Audience:
BMW R850GS owners, independent motorcycle mechanics, and enthusiasts
Key Competitors Era:
Honda Africa Twin, Yamaha Super Ténéré, Kawasaki KLR, Suzuki V-Strom (in broader adventure touring context)
Model Philosophy:
Versatile dual-sport capability with BMW's characteristic engineering and rider comfort
Manual Advantage:
Provides in-depth technical knowledge for effective DIY maintenance and repair, saving costs and ensuring optimal performance.
Primary Coverage:
Service, Repair, Workshop
Region Applicability:
Global (Mechanic Standard)
Estimated Page Count:
Likely 500+ pages (typical for comprehensive workshop manuals)
Manual Type:
Workshop Manual / Service Manual / Repair Manual
Format Type:
Digital (likely PDF), potentially available in print
Searchable Text:
Yes (if PDF, allows for quick information retrieval by keyword)
Engine Mechanical:
Full engine disassembly, assembly, inspection, tuning, and repair
Fuel System:
Fuel injection system (components, diagnosis, calibration), fuel pump, lines, filters
Ignition System:
Ignition coils, spark plugs, ECU control, timing
Transmission Drivetrain:
Clutch operation, gearbox components, final drive, driveshaft maintenance
Chassis Suspension:
Front and rear suspension components, forks, shock absorbers, bearings, geometry adjustments
Brakes:
Brake system diagnosis, ABS components, caliper service, rotor replacement, fluid flush
Electrical System:
Wiring diagrams, component testing, battery, alternator, starter, lighting, instrumentation
Bodywork Frame:
Fairings, body panels, frame inspection, seat, fuel tank removal and installation
Exhaust System:
Exhaust components, lambda sensors (if applicable), catalytic converter
Cooling System:
Oil cooling system, oil circulation, oil filter replacement
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, valve clearance adjustment
Troubleshooting:
Diagnostic procedures, common fault finding, error code interpretation (if applicable)
Component Overhaul:
Detailed step-by-step instructions for rebuilding major components
Torque Specifications:
Comprehensive list of all critical torque values for fasteners
Special Tools:
Identification and usage of BMW-specific or required special tools
Wheel Bearing Service:
Front and rear wheel bearing inspection and replacement
Steering Head Bearing Service:
Inspection and adjustment of steering head bearings
Throttle Cable Adjustment:
Adjustment and replacement of throttle cables
Diagnostic Level:
Advanced, including electrical system diagnostics and fuel injection system tuning
Repair Scope:
Complete mechanical and electrical repair, from basic servicing to major component overhaul
Technical Drawings:
Includes detailed diagrams and exploded views of components
Engine Management System Diagnosis:
Detailed explanation of the Motronic 2.4 system, including sensor testing and ECU troubleshooting.
Engine Type:
Four-stroke, air-cooled, two-cylinder boxer engine
Bore X Stroke:
90.0 mm x 66.0 mm
Compression Ratio:
10.0:1
Horsepower:
70 HP (52 kW) at 7,250 rpm (approximate, may vary slightly)
Torque:
75 Nm (55 lb-ft) at 5,500 rpm (approximate, may vary slightly)
Fuel Delivery:
Bosch Motronic MA 2.4 Fuel Injection
Fuel Type:
Unleaded Petrol (95 RON recommended)
Valve Train:
Single Overhead Camshaft (SOHC), two valves per cylinder
Oil Type:
SAE 20W-50 or SAE 15W-50 Motorcycle Oil (API SG or higher)
Oil Capacity With Filter:
3.0 Liters (approx.)
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually, whichever comes first
Valve Clearance Check:
Every 20,000 km (12,000 miles)
Spark Plug Replacement:
Every 20,000 km (12,000 miles)
Coolant Type:
N/A (Air-cooled engine with oil cooling)
Common Wear Items:
Clutch wear, alternator brushes, rear shock absorber seals, driveshaft splines (require lubrication)
Electrical Gremlins:
Occasional issues with starter solenoids, dashboard indicators, or wiring harness connections due to age and vibration.
Fuel Injection Maintenance:
Periodic cleaning of throttle bodies and fuel injectors to maintain optimal performance.
Bmw Motorcycle History:
BMW has a long-standing reputation for producing robust, reliable, and technologically advanced motorcycles since the early 20th century.
R Series Lineage:
The R850GS is part of BMW's highly successful R series of boxer-twin motorcycles, evolving from earlier models like the R100GS, offering a more accessible and user-friendly adventure platform.
Production Era:
The R850GS was produced from the mid-1990s to the early 2000s.
Manufacturing Location:
Berlin, Germany (BMW Motorrad plant)
