🏷️ Basic Information Identification Make: BMW Model: R 1150 GS Model Variant: All Models Covered Codes Engine Code General: R21 👋 Introduction Market Position Segment: Adventure Touring Motorcycle Competitive Analysis Competitors: Honda Africa Twin, Yamaha Super Tenere, Triumph Tiger, KTM Adventure series. Key Features Usp: Robust engineering, versatile performance for on-road and off-road use, strong touring capability. Brand Heritage Heritage: BMW's long-standing tradition of producing high-quality motorcycles, particularly in the boxer-twin engine configuration and the GS lineage. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Chassis: Yes Electrical System: Yes Bodywork: Yes Maintenance: Yes Troubleshooting: Yes Repair: Yes Page Count Estimated Pages: 500+ Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Downloadable Digital File (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed disassembly, assembly, inspection, and repair of engine components (pistons, cylinders, crankshaft, camshafts, valves, etc.). Fuel System: Fuel injection system (EFI), fuel pump, injectors, fuel pressure regulator, fuel tank, lines, and filters. Ignition System: Ignition coils, spark plugs, wiring, and ignition control module. Exhaust System: Exhaust manifold, catalytic converter (if applicable), mufflers, and mounting hardware. Cooling System: Oil cooler, oil lines, and related components for the air/oil-cooled engine. Transmission Gearbox: Clutch operation, gearbox disassembly/assembly, gear selection, and lubrication. Drivetrain: Single-plate dry clutch, final drive (driveshaft, bevel gear housing), and wheel hub. Front Suspension: Telelever front suspension system, fork legs, springs, damping, steering head bearings. Rear Suspension: Paralever rear suspension system, shock absorber, swingarm, pivot bearings. Braking System: Front and rear brake calipers, master cylinders, brake lines, brake fluid replacement, ABS system (Integral ABS) diagnostics and repair. Wheel Tires: Wheel bearing replacement, tire mounting/balancing, wheel specifications. Electrical System Engine: Starter motor, alternator, battery, wiring harness routing, fuses, relays. Lighting: Headlight, taillight, turn signals, brake lights, instrument cluster illumination. Instrumentation: Speedometer, tachometer, fuel gauge, warning lights, diagnostic indicators. Body Frame: Frame components, fairings, fuel tank, seat, luggage systems (panniers, top case). Diagnostic Troubleshooting: Fault codes, diagnostic procedures, testing of sensors and actuators. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug service, valve clearance adjustment, brake fluid flush, drive shaft lubrication. Major Repairs: Engine rebuilds, transmission overhauls, suspension component replacement, clutch replacement. Electrical Diagnostics: Tracing electrical faults, testing sensors, actuators, and control modules. Fuel System Service: Injector cleaning/replacement, fuel pressure testing, fuel pump replacement. ABS System Service: Bleeding ABS system, diagnostics of ABS sensors and hydraulic unit. Suspension Adjustment: Setting sag, adjusting damping (where applicable), servicing fork seals. Wheel Tire Service: Wheel bearing replacement, spoke tensioning (if applicable), tire pressure checks and adjustments. Technical Depth Depth: Comprehensive, covering from basic maintenance to in-depth troubleshooting and major component overhauls. Detail Level: Detailed step-by-step instructions with clear diagrams and specifications. 📊 Manual Specifications File Format File Type: PDF Searchable: Yes Printable: Yes Print Quality Quality: Professional Quality Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Four-stroke, two-cylinder boxer engine Displacement: 1130 cc Bore X Stroke: 99 mm x 70.5 mm Compression Ratio: 9.8:1 Cooling System: Air/Oil Cooled Valve Train: SOHC, 4 valves per cylinder Performance Horsepower: 95 hp (70 kW) at 7250 rpm Torque: 98 Nm (72 lb-ft) at 5500 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, minimum 91 octane (RON + MON)/2 Lubrication Oil Type Capacity: SAE 20W-50, approx. 4.0 liters (4.2 US qt) without filter change 🔧 Transmission Standard Type: 6-speed manual transmission Optional Options: None typically offered for this model year generation. Features Clutch: Single-plate dry clutch Final Drive: Shaft drive 📐 Dimensions Exterior Length: Approx. 2230 mm (87.8 in) Width: Approx. 920 mm (36.2 in) at handlebars Height: Approx. 1430 mm (56.3 in) at windshield Weights Dry Weight: Approx. 220 kg (485 lbs) Gross Vehicle Weight Rating: Approx. 450 kg (992 lbs) Fuel Tank Capacity: 26 liters (6.9 US gal) 🛡️ Safety Features Ratings Crash Test Results: Motorcycles are not typically rated by governmental crash test agencies like NHTSA or Euro NCAP. Active Features ABS: BMW Integral ABS (optional on some models, standard on later versions) - combines braking functions, can be partially or fully deactivated. Traction Control: ASC (Automatic Stability Control) - optional feature on some models. Passive Features Lighting System: Halogen headlight, clear lens turn signals, integrated rear brake/taillight. Chassis Design: Sturdy frame and suspension components designed for stability and load-carrying capacity. 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer and speedometer, digital odometer, trip computer, fuel level indicator, gear indicator (on some models), various warning lights. Driver Assistance Traction Control Asc: Optional feature providing enhanced grip on slippery surfaces. ABS Integral: Optional feature that integrates front and rear braking, offering advanced stopping power. Connectivity Electrical System: Standard 12V electrical system, CAN bus architecture for diagnostics and communication between modules. 🔧 Maintenance Service Intervals Oil Filter Change: Every 10,000 km (6,000 miles) or...