Positioning:
The BMW R1150 GS and GS Adventure models are renowned dual-sport motorcycles, excelling in long-distance touring, adventure riding, and capable off-road performance. They occupy a premium segment in the adventure motorcycle market.
Competitors:
Competed against models such as the Honda Africa Twin, Triumph Tiger, and KTM Adventure series during its production run.
Unique Selling Points:
Shaft drive, boxer engine's low center of gravity, robust build quality, long-travel suspension, and excellent ergonomics for touring and off-road capability.
Systems Covered:
Engine, Transmission, Drivetrain, Fuel System, Ignition System, Electrical System, Suspension, Brakes, Chassis, Bodywork, Instrumentation, Tools, Troubleshooting
Page Count:
Approximately 600+
Manual Type:
Factory Service Manual / Workshop Manual
Engine Mechanical:
Detailed disassembly and assembly of the Boxer twin-cylinder engine, including cylinder heads, valves, pistons, crankshaft, camshafts, timing chain, and oil pump.
Fuel System:
Comprehensive coverage of the fuel injection system (Bosch Motronic MA 2.4), fuel pump, injectors, fuel pressure regulator, and diagnostic procedures.
Ignition System:
Detailed information on the electronic ignition system, coil packs, spark plugs, timing, and troubleshooting.
Transmission And Drivetrain:
Complete service procedures for the 6-speed transmission, clutch system (dry single-plate), final drive, and driveshaft.
Suspension And Steering:
Detailed instructions for servicing the Telelever front suspension and Paralever rear suspension, including fork seals, shock absorbers, bearings, and steering head bearings.
Braking System:
In-depth coverage of the hydraulic braking system, including ABS II (optional), brake calipers, master cylinders, brake lines, fluid changes, and bleeding procedures.
Electrical System:
Extensive electrical schematics, component testing, troubleshooting for lighting, starting system, charging system (alternator, voltage regulator), battery, and instrument cluster.
Chassis And Bodywork:
Procedures for frame inspection, body panel removal and installation, seat, fuel tank, fairing, and luggage system components.
Scheduled Maintenance:
Detailed maintenance schedules including oil changes, filter replacements, valve adjustments, spark plug replacement, and brake fluid changes.
Troubleshooting Guides:
Systematic diagnostic flowcharts and troubleshooting tips for common and uncommon issues.
Engine Rebuild:
Complete instructions for engine disassembly, inspection, repair, and reassembly, including torque specifications and tolerances.
Component Overhaul:
Detailed procedures for overhauling specific components like the transmission, final drive, and braking system.
Electrical Diagnosis:
Step-by-step electrical diagnostics using multimeters and specialized tools.
Suspension Adjustment:
Guidance on adjusting and servicing the front and rear suspension units.
Depth:
Comprehensive, suitable for professional technicians and advanced DIY mechanics. Covers everything from basic maintenance to complete engine and transmission rebuilds.
Engine Type:
Four-stroke, horizontally opposed twin-cylinder (Boxer)
Bore X Stroke:
101 mm x 70.5 mm
Valve Train:
SOHC, 2 valves per cylinder
Cooling System:
Air/Oil Cooled
Horsepower:
85 hp @ 6,750 rpm
Torque:
98 Nm (72 lb-ft) @ 5,250 rpm
Fuel Delivery:
Bosch Motronic MA 2.4 Electronic Fuel Injection
Fuel Type:
Unleaded Premium (91+ Octane)
Oil Type:
SAE 20W-50 API SG or higher
Oil Capacity With Filter:
Approx. 4.0 Liters (4.2 US qts)
Instrumentation:
Analog Tachometer and Speedometer, Digital Multi-function Display (Fuel level, Gear indicator, Odometer, Trip meters, Clock, Outside temperature, Oil pressure warning).
ABS Details:
Integral ABS II provides combined braking with optional ABS functionality for enhanced safety.
Battery Charging:
Standard 12V electrical system, often with an auxiliary power outlet for charging devices.
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually
Valve Adjustment Interval:
Every 20,000 km (12,000 miles)
Spark Plug Replacement:
Every 20,000 km (12,000 miles)
Brake Fluid Change:
Every 2 years
Coolant Type:
Not Applicable (Air/Oil Cooled)
Common Wear Items:
Clutch wear, output shaft seal leaks, paralever boot degradation, alternator brush wear, fuel pump issues.
Common Complaints:
Stiff throttle (pre-throttle lock models), ABS system sensitivity, occasional electrical gremlins, final drive bearing noise.
Special Tools:
BMW special tools for engine, transmission, wheel bearings, and suspension work are often recommended for complex tasks.
Heritage Focus:
BMW Motorrad has a long history of producing reliable and capable motorcycles, particularly known for its boxer engines and adventure touring capabilities starting with the R80G/S.
Lineage:
The R1150 GS is the successor to the R1100 GS, evolving with a larger displacement engine, improved suspension, and revised styling. It paved the way for the R1200 GS.
Production Years:
1999-2005 (R1150 GS), 2001-2005 (R1150 GS Adventure)
Manufacturing Location:
Berlin, Germany
