Positioning:
The R1100 GS established BMW's dominance in the burgeoning adventure touring segment, offering a blend of long-distance comfort, off-road capability, and robust engineering.
Competitors:
Competed with motorcycles like the Honda Africa Twin, Kawasaki KLR650, and early iterations of adventure bikes from other European manufacturers.
Gs Philosophy:
Designed for versatility, capable of tackling varied terrains and long journeys, embodying the 'Gelandestraße' (off-road street) concept.
Engine Layout:
Air-cooled, four-stroke, boxer-twin engine with two spark plugs per cylinder.
Engine:
Complete overhaul, diagnostics, tuning, component replacement (pistons, rings, valves, camshafts, timing chain)
Fuel System:
Fuel injection system (Bosch Motronic), fuel pump, injectors, fuel pressure regulator, throttle body service
Ignition System:
Ignition timing, spark plugs, coils, ECU diagnostics
Transmission:
Gearbox internal inspection, clutch operation and replacement, gear shift mechanism, final drive (driveshaft, bevel gear)
Brakes:
ABS (if equipped), hydraulic system, brake fluid flush and bleed, pad and disc replacement, caliper service
Suspension:
Front Telelever suspension, rear Monolever swingarm, shock absorber servicing, fork seal replacement, spring rates
Electrical System:
Wiring diagrams, battery, charging system (alternator, regulator), starter motor, lighting, instrumentation, fault finding
Bodywork And Frame:
Fairing removal and installation, seat, fuel tank, chassis components, fasteners torque specifications
Cooling System:
Oil cooler system, oil circulation, oil filter replacement
Maintenance:
Scheduled maintenance tasks, oil changes, filter replacements, spark plug checks, valve clearance adjustment
Troubleshooting:
Diagnostic flowcharts, symptom-based problem solving, common fault identification
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Calibration And Adjustment:
Throttle cable adjustment, idle speed setting, clutch lever free play
Special Tools:
Identification and usage of specialized BMW tools required for certain procedures
Depth:
Comprehensive: Covers routine maintenance, diagnostics, and full mechanical/electrical repairs. Suitable for experienced DIY mechanics and professional technicians.
Engine Type:
Horizontally opposed twin-cylinder (Boxer)
Displacement:
1085 cc (1.1 Liters)
Bore X Stroke:
99 mm x 70.5 mm
Valve Train:
Two valves per cylinder, operated by pushrods and rocker arms
Engine Management:
Bosch Motronic MA 2.2 (Fuel injection and ignition control)
Horsepower:
80 HP (59 kW) @ 6750 rpm
Torque:
72.3 lb-ft (98 Nm) @ 5250 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Premium (95 RON or higher recommended)
Fuel Tank Capacity:
25 Liters (6.6 US Gallons)
Cooling Method:
Air-cooled with integrated oil cooler
ABS:
Optional BMW Integral ABS (Anti-lock Braking System)
Braking System:
Hydraulic disc brakes front and rear, dual front discs
Lighting:
Halogen headlight, LED taillight
Ergonomics:
Upright riding position for rider comfort and control.
Instrumentation:
Analog tachometer, digital speedometer, fuel gauge, gear indicator, warning lights, clock.
ABS System:
Optional Integral ABS system offering combined braking control.
Diagnostic Port:
On-board diagnostics (OBD) for engine management system via specialized BMW tools.
Oil Change Interval:
Every 10,000 km (6,000 miles) or annually
Valve Clearance Interval:
Every 20,000 km (12,000 miles)
Spark Plug Interval:
Check at 10,000 km, replace at 20,000 km (or as needed based on condition)
Engine Oil Type:
SAE 20W-50 Motorcycle Oil (API SG or higher)
Engine Oil Capacity:
Approx. 3.0 Liters (3.2 US Quarts) with filter change
Transmission Oil Type:
SAE 75W/90 Synthetic Gear Oil
Final Drive Oil Type:
SAE 75W/90 Synthetic Gear Oil
Hall Sender Unit:
Potential failure causing intermittent running or no-start conditions.
Clutch Slave Cylinder:
Can develop leaks or operational issues over time.
Fuel Pump:
Some early models may experience premature fuel pump failure.
Rubber Mounts:
Engine and exhaust mounting rubbers can degrade and require replacement.
Bmw Motorrad:
BMW Motorrad has a long-standing reputation for engineering excellence, durability, and innovation, particularly with its boxer engine platform.
R Series:
The R1100 GS is a pivotal model in the evolution of BMW's 'GS' line, building upon the legacy of the R80G/S and R100GS with a significant technological leap.
Production Period:
1994-1999 (for this specific manual coverage)
Manufacturing Location:
Berlin, Germany
