🏷️ Basic Information

Make:

BMW

Model:

R1150GS

Engine Code:

R2X (typically 1150cc boxer twin)

👋 Introduction

Segment:

Dual-sport / Adventure Touring Motorcycle

Key Competitors:

Honda Africa Twin, KTM Adventure series, Triumph Tiger, Ducati Multistrada

Distinctive Attributes:

Characterized by its robust boxer twin engine, long-travel suspension, shaft drive, and go-anywhere capability, making it a benchmark in the adventure touring segment.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Ignition System, Transmission, Clutch, Driveshaft, Final Drive, Suspension (Front & Rear), Brakes (ABS & Standard), Electrical System, Bodywork, Chassis, Diagnostics, Troubleshooting

Estimated Pages:

500-700 (typical for comprehensive service manuals of this era)

Type:

Service and Repair Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine Mechanical:

Detailed disassembly, inspection, and reassembly of the R2X boxer twin engine, including cylinder heads, pistons, crankshaft, camshafts, valves, timing chain, and oil pump.

Fuel System:

Comprehensive coverage of fuel injection (EFI) system, including fuel pump, injectors, throttle body, fuel pressure regulator, ECU, and sensor diagnostics (e.g., TPS, MAP, O2).

Ignition System:

Detailed explanation of the electronic ignition system, coil testing, spark plug specifications, and ECU control parameters.

Transmission And Drivetrain:

Coverage of the 5-speed gearbox, clutch assembly (single dry plate or optional hydraulic), driveshaft, universal joints, and final drive unit, including lubrication and maintenance.

Suspension And Steering:

Detailed procedures for front Telelever suspension, rear Paralever swingarm, shock absorber adjustments, fork seal replacement, and steering head bearing service.

Brakes:

In-depth coverage of Brembo braking systems, including disc and caliper maintenance, pad replacement, brake fluid bleeding, and detailed troubleshooting for ABS II or optional Integral ABS.

Electrical System:

Comprehensive wiring diagrams, component testing (starter motor, alternator, battery), fuse box layout, lighting system, and instrument cluster diagnostics.

Bodywork And Chassis:

Procedures for fairing removal and installation, seat maintenance, fuel tank service, frame inspection, and general chassis components.

Throttle Control:

Detailed information on throttle cable adjustment, throttle body cleaning, and synchronization procedures using a vacuum gauge.

Routine Maintenance:

Oil and filter changes, air filter replacement, spark plug checks, brake fluid service, tire pressure checks, and valve clearance adjustments.

Troubleshooting:

Systematic diagnostic procedures for common issues, including starting problems, engine performance issues, electrical faults, and braking system anomalies.

Major Repairs:

Detailed step-by-step instructions for major component overhauls and repairs, such as engine rebuilds, transmission repairs, and suspension overhauls.

Component Replacement:

Guidance on replacing specific parts like clutch plates, wheel bearings, brake lines, and electrical components.

Fuel Tank Removal And Installation:

Step-by-step instructions for safely removing and reinstalling the fuel tank, including fuel line disconnect and reconnect procedures.

Depth:

Expert-level technical information suitable for professional mechanics and experienced DIY enthusiasts, covering diagnostics, specifications, and rebuild procedures.

Wiring Diagrams:

Includes detailed, manufacturer-specific wiring diagrams for all electrical systems, crucial for troubleshooting and repairs.

📊 Manual Specifications

File Type:

PDF

Printability:

High-resolution, printable pages with clear text and diagrams.

Binding:

Not applicable (Digital Download)

Paper Quality:

Not applicable (Digital Download)

⚙️ Engine Specifications

Engine Type:

Air/oil-cooled, four-stroke, flat-twin (boxer) engine

Displacement:

1130cc (1150cc class)

Bore X Stroke:

101 mm x 70.5 mm

Compression Ratio:

9.5:1 or 10.0:1 (depending on variant)

Valvetrain:

SOHC, 2 valves per cylinder, pushrod actuated

Horsepower:

Approx. 85 HP @ 6,750 rpm

Torque:

Approx. 71 lb-ft (96 Nm) @ 5,250 rpm

Fuel Delivery:

Bosch Motronic Electronic Fuel Injection (EFI) with individual throttle bodies

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON+MON)/2

🔧 Transmission

Transmission Type:

5-speed manual

Clutch:

Single dry plate, hydraulically actuated

Final Drive:

Shaft drive with bevel gear

📐 Dimensions

Length:

Approx. 2,230 mm (87.8 in)

Width:

Approx. 910 mm (35.8 in) at handlebars

Height:

Approx. 1,445 mm (56.9 in) at seat

Wheelbase:

Approx. 1,495 mm (58.9 in)

Dry Weight:

Approx. 216 kg (476 lbs)

Gross Vehicle Weight:

Approx. 450 kg (992 lbs)

Fuel Tank Capacity:

20 liters (5.3 US gal), including 4 liters (1.1 US gal) reserve

🛡️ Safety Features

ABS:

Optional BMW Motorrad ABS II or Integral ABS (depending on model year)

Braking System:

Dual front discs with 4-piston calipers, single rear disc with 2-piston caliper, often linked with ABS

Chassis Design:

Robust frame and suspension designed for stability and handling under various load conditions.

💡 Technology Features

Instrumentation:

Analog tachometer and speedometer, LCD display for odometer, trip meters, fuel level, gear indicator, and diagnostic codes.

ABS System:

Availability of ABS provides enhanced braking control, especially in varied conditions. Manual details calibration and troubleshooting.

Diagnostic Port:

On-board diagnostic (OBD) port for connecting diagnostic tools, allowing for fault code reading and system analysis.

🔧 Maintenance

Oil Change Interval:

Every 10,000 km (6,200 miles) or annually, whichever comes first.

Valve Clearance Check:

Every 20,000 km (12,400 miles).

Final Drive Oil Change:

Every 20,000 km (12,400 miles).

Engine Oil:

SAE 20W-50 API SG or higher (e.g., BMW Motorrad Advantec Ultimate 20W-50)

Transmission Oil:

SAE 75W-90 API GL-5 (e.g., BMW Motorrad Getriebeöl)

Brake Fluid:

DOT 4

Final Drive Oil:

SAE 80W-90 API GL-5

Common Wear Items:

Clutch slave cylinder seals, alternator brushes, rear shock absorber seals, fuel pump, and throttle body synchronization.

Potential Electrical Faults:

Intermittent issues with wiring harness connectors, particularly around the alternator and ECU, often addressed with upgraded connectors or wiring loom checks.

Drivetrain Maintenance:

Regular inspection and lubrication of the driveshaft U-joints and final drive splines are crucial to prevent premature wear.

📚 Vehicle History

Manufacturer:

Bayerische Motoren Werke AG (BMW), a German company with a long history in aviation and motorcycle production.

Gs Lineage:

The R1150GS is part of BMW's highly successful 'Gelände/Straße' (off-road/street) GS series, evolving from earlier R80G/S and R100GS models. It represented a significant step forward in technology and performance for the adventure touring segment.

Production Years:

1999 - 2004

Manufacturing Location:

Berlin, Germany (BMW Motorrad plant)

🏆 Awards & Recognition

Industry Standing:

Widely acclaimed for its reliability, comfort, and capability, earning it a reputation as a 'legend' in the adventure touring motorcycle world.