🏷️ Basic Information Identification Make: BMW Model: R1150GS Codes Chassis Code: R21 👋 Introduction Market Position Segment: Adventure Touring Motorcycle Competitive Analysis Key Rivals: Honda Africa Twin, Triumph Tiger, KTM Adventure series, Yamaha Super Tenere Key Features Vehicle Strengths: Robust engineering, long-distance comfort, off-road capability, strong aftermarket support, reliable Boxer engine. Manual Value Proposition: Empowers owners to perform comprehensive maintenance and repairs, reducing reliance on dealerships and saving costs. Essential for enthusiasts and long-term ownership. 📋 Manual Details Coverage Areas Main Systems: Engine, Transmission, Drivetrain, Chassis, Electrical System, Bodywork, Suspension, Brakes, Fuel System, Exhaust System, Cooling System, Ignition System Page Count Estimated Pages: 750+ Manual Type Type: Digital Workshop Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, cylinder head, valve train, piston and connecting rod assembly, crankshaft, timing chain, lubrication system, oil pump, oil filter housing. Fuel System: Fuel injection system (Bosch Motronic MA 2.4), fuel pump, injectors, throttle body, fuel pressure regulator, fuel filter replacement. Ignition System: Ignition coils, spark plugs, electronic control unit (ECU) diagnostics, timing. Transmission Drivetrain: Clutch assembly, gearbox (6-speed sequential), final drive, driveshaft, universal joints, rear axle, Paralever system. Electrical System: Wiring diagrams, battery, starter motor, alternator, lighting system (headlights, taillights, indicators), fuses, relays, electronic control modules (ABS, Motronic), instrument cluster. Suspension Steering: Front Telelever suspension, rear Monolever with adjustable shock absorber, steering head bearings, wheel bearings. Brakes: Front and rear disc brakes, ABS II (optional), brake fluid replacement, caliper overhaul, pad replacement, line bleeding. Chassis Bodywork: Frame, subframe, fuel tank, seat, fairing, body panels, exhaust system. Procedures Included Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, valve clearance adjustment, brake fluid flush, clutch fluid flush, driveshaft lubrication, wheel bearing checks, battery maintenance. Repair: Engine rebuild, gearbox overhaul, clutch replacement, suspension repair, brake system repair, electrical component replacement, fuel injection system diagnosis and repair, ABS troubleshooting. Troubleshooting: Diagnostic codes, common fault finding for engine, electrical, and chassis issues, step-by-step diagnostic procedures. Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds and complex electrical diagnostics). 📊 Manual Specifications File Format Searchable Text: Yes Printable: Yes Print Quality Resolution: High-resolution images and diagrams Binding Type Binding: Not Applicable (Digital Format) Paper Type Paper: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Type: Air/oil-cooled, four-stroke, flat-twin (Boxer) engine Displacement: 1130 cc (68.9 cu in) Bore X Stroke: 101 mm x 70.5 mm (3.98 x 2.78 in) Compression Ratio: 9.7:1 Performance Horsepower: 95 hp @ 7,250 rpm (approx.) Torque: 98 Nm (72 lb-ft) @ 5,500 rpm (approx.) Fuel System Fuel Delivery: Electronic fuel injection (Bosch Motronic MA 2.4) Fuel Type: Unleaded gasoline, minimum 91 octane (RON+MON)/2 Cooling System Cooling Medium: Air and oil cooling 🔧 Transmission Standard Type: 6-speed manual gearbox Optional Type: Single dry clutch (operated by clutch lever) Features Final Drive: Shaft drive via Paralever system 📐 Dimensions Exterior Length: Approx. 2230 mm (87.8 in) Width: Approx. 900 mm (35.4 in) at handlebars Height: Approx. 1410 mm (55.5 in) at highest windshield setting Weights Dry Weight: Approx. 220 kg (485 lbs) Gross Vehicle Weight Rating: Approx. 460 kg (1014 lbs) Fuel Capacity: 20 liters (5.3 US gal), including 4 liters reserve 🛡️ Safety Features Ratings ABS Availability: Optional (BMW Integral ABS II) Active Features Braking System: Dual front disc brakes (305mm), single rear disc brake (276mm), optional ABS Lighting: Halogen headlight, LED taillight Passive Features Frame Construction: Three-piece frame construction (front, rear, engine as stressed member) 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer and tachometer, LCD display for odometer, trip meters, clock, gear indicator, fuel level, temperature warnings. Driver Assistance ABS: BMW Integral ABS II (optional, with linked braking function). Connectivity Diagnostic Port: BMW 10-pin diagnostic connector for use with BMW diagnostic tools. 🔧 Maintenance Service Intervals Oil Change: Every 10,000 km (6,000 miles) or annually Valve Clearance Check: Every 20,000 km (12,000 miles) Air Filter Replacement: Every 20,000 km (12,000 miles) or as needed based on conditions Brake Fluid Replacement: Every 2 years Fluid Specifications Engine Oil: SAE 20W-50 or 15W-50, API SJ/SL or equivalent (BMW recommends Castrol) Engine Oil Capacity: Approx. 3.0 liters (3.17 US qt) with filter change Gearbox Oil: SAE 75W-90 GL-5 synthetic gear oil Gearbox Oil Capacity: Approx. 1.0 liter (1.05 US qt) Final Drive Oil: SAE 80W-90 GL-5 gear oil Final Drive Oil Capacity: Approx. 0.25 liters (0.26 US qt) Brake Fluid: DOT 4 (or DOT 5.1 if specified by manufacturer) Known Issues Common Faults: Oil leaks (especially around the cylinder base seals), clutch slave cylinder leaks, ABS sensor issues, occasional intermittent electrical faults, fuel pump issues. 📚 Vehicle History Brand Heritage Foundation: Bayerische Motoren Werke AG (BMW), founded in 1916 Motorcycle Division Origin: Established in 1923 with the BMW R32 Model Evolution Predecessor: BMW R1100GS Introduction Year: 1999 Major Updates: Increased engine capacity...