Segment:
Dual-sport / Adventure Motorcycle
Competitors 1999:
Honda Africa Twin, Suzuki V-Strom (later models), Triumph Tiger, KTM Adventure series.
Design Philosophy:
Robust construction, long-distance comfort, off-road capability, reliable boxer engine.
Target Audience:
Touring riders, adventure seekers, riders looking for a versatile and durable machine.
Engine Systems:
Engine disassembly, assembly, component testing, lubrication, cooling system, fuel injection system (EFI), ignition system, emissions control.
Transmission Drivetrain:
Clutch, gearbox (6-speed), driveshaft, final drive, bearing checks and replacement.
Chassis Suspension:
Front Telelever suspension, rear Paralever suspension, wheel bearings, steering head bearings, swingarm.
Brakes Wheels:
ABS (optional), hydraulic brake system (front and rear), brake fluid, rotor and pad inspection/replacement, wheel mounting, tire pressure.
Electrical System:
Battery, charging system (alternator, voltage regulator), starter motor, lighting, instrumentation, wiring diagrams, fuses, relays, ECU diagnostics.
Bodywork Fairings:
Fairing removal and installation, seat, fuel tank, fenders, luggage system mounting points.
Maintenance:
Regular servicing, oil changes, filter replacements, valve clearance adjustment, spark plug replacement, chain adjustment (if applicable, though R1150GS has shaft drive), brake fluid flush.
Troubleshooting:
Diagnostic procedures for common faults, error code interpretation, electrical system diagnosis, engine performance issues.
Repair Rebuild:
Complete engine rebuild procedures, gearbox overhauls, suspension component replacement, electrical component repair.
Depth:
Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Includes detailed torque specifications, tolerances, and diagnostic flowcharts.
Type:
Air/Oil-cooled, four-stroke, boxer-twin engine
Displacement:
1130 cc (actual displacement often cited as 1130 or 1149 cc)
Bore X Stroke:
98 mm x 74.5 mm
Horsepower:
85 hp @ 6,750 rpm (approximate)
Torque:
98 Nm (72 lb-ft) @ 5,250 rpm (approximate)
Induction:
Bosch Motronic 2.4 Fuel Injection (EFI)
Fuel Type:
Unleaded Gasoline (91-98 RON)
Type:
Air cooling with oil cooling for the cylinder heads.
Length:
Approx. 2,230 mm (87.8 in)
Width:
Approx. 910 mm (35.8 in) at handlebars
Height:
Approx. 1,340 mm (52.8 in) at seat
Dry Weight:
Approx. 230 kg (507 lbs)
Gross Vehicle Weight Rating:
Approx. 450 kg (992 lbs)
Luggage Capacity:
Designed for BMW panniers and top case (optional).
Instrumentation:
Analog speedometer, tachometer, fuel gauge, warning lights, clock, gear indicator (on some models/aftermarket).
ABS System:
Integral ABS system that combines braking for both wheels with a single lever pull, and allows independent rear braking with the foot pedal.
Oem Options:
Provision for heated grips, auxiliary power sockets, and compatibility with BMW's early navigation systems.
Oil Change Interval:
Typically every 10,000 km or 1 year, whichever comes first.
Valve Check Interval:
Typically every 20,000 km or 2 years.
Engine Oil Type:
SAE 20W-50 or 15W-50, API SG or higher (refer to manual for exact BMW specification).
Engine Oil Capacity:
Approx. 4 liters (4.2 US qt) with filter change.
Brake Fluid Type:
DOT 4 (refer to manual for specific BMW DOT rating).
Transmission Oil Type:
SAE 75W-90 API GL-5 (refer to manual for specific BMW specification).
Final Drive Oil Type:
SAE 80W-90 API GL-5 (refer to manual for specific BMW specification).
Common Wear Items:
Clutch wear, rear shock absorber damping, alternator brushes, fuel pump reliability, starter motor solenoid.
Electrical Gremlins:
Occasional issues with wiring loom integrity and self-test functionality can occur with age.
Bmw Motorcycle Legacy:
BMW has a long history of producing durable and capable motorcycles, particularly known for its boxer engines and innovation in motorcycle technology.
R Series Gs Lineage:
The R 1150 GS is an evolution of the highly successful R 1100 GS, introducing more power, improved ergonomics, and updated technology. It further cemented BMW's dominance in the adventure touring segment.
Production Period:
The R 1150 GS model range was produced from 1999 to 2005, with variations like the R 1150 GS Adventure introduced later.
