Segment:
Large-displacement adventure touring motorcycle
Positioning:
Iconic, highly capable machine renowned for its versatility, durability, and long-distance touring comfort, equally adept on paved roads and off-road trails.
Competitors:
Competed against other large-bore adventure bikes such as the Honda Africa Twin, Yamaha Super Tenere, and later models from Triumph and KTM.
Engine Architecture:
Air/oil-cooled, four-stroke, flat-twin (boxer) engine with two spark plugs per cylinder.
Suspension System:
Unique BMW Telelever front suspension and Paralever shaft drive rear suspension for progressive damping and reduced dive/squat.
Fuel System:
Bosch Motronic electronic fuel injection (EFI) system.
Brakes:
Optional ABS (Anti-lock Braking System) on many models, offering enhanced safety.
Drivetrain:
Shaft drive, eliminating chain maintenance.
Primary Coverage:
Comprehensive repair, maintenance, and servicing for BMW R1150GS motorcycles
Secondary Coverage:
Includes troubleshooting, diagnostics, specifications, and detailed procedures
Estimated Page Count:
Likely over 500 pages (typical for WSMs of this era)
Type:
Workshop Service Manual (WSM) / Repair Manual
Format:
Digital (likely PDF, as implied by 'profession......')
Engine:
1100cc and 1150cc Twin-cylinder boxer engine, including fuel injection, ignition, cooling, lubrication, and exhaust systems
Transmission Drivetrain:
Clutch, gearbox (5-speed and 6-speed variants), driveshaft, final drive, and Paralever rear suspension
Chassis Suspension:
Frame, front suspension (Telelever), rear suspension (Paralever), wheel bearings, steering system
Brakes:
Front and rear braking systems (including ABS II, ABS-N, or non-ABS configurations), hydraulic lines, calipers, rotors, and brake fluid specifications
Electrical:
Wiring diagrams, battery, alternator, starter motor, lighting, instrumentation, ignition system, fuel injection control unit (ECU), ABS control unit, diagnostic connectors
Bodywork Fittings:
Fairings, fuel tank, seat, luggage systems, fasteners, and trim components
Routine Maintenance:
Oil changes, filter replacements, spark plug service, air filter cleaning/replacement, valve clearance adjustment, brake fluid flush, clutch fluid flush, drive shaft lubrication
Engine Repair:
Engine disassembly and reassembly, piston and cylinder inspection/replacement, camshaft and valve train service, crankshaft and bearing service, cylinder head service
Transmission Repair:
Gearbox disassembly and reassembly, clutch replacement, final drive unit service and seal replacement
Suspension Service:
Telelever fork seal replacement, shock absorber service, Paralever pivot bearing service
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams, sensor testing, ECU diagnostics
ABS System Service:
Bleeding procedures, diagnostic checks for ABS units
Depth:
Expert-level detail suitable for professional technicians and experienced DIY mechanics. Covers complete engine rebuilds, gearbox overhauls, and intricate electrical diagnostics.
Diagnostics:
Extensive diagnostic flowcharts and troubleshooting guides for identifying and resolving mechanical and electrical issues.
Type:
Air/oil-cooled, four-stroke flat twin (boxer) engine
Displacement:
1130 cc (for the R1150GS, derived from the R1100 series)
Bore X Stroke:
99 mm x 70.5 mm
Compression Ratio:
9.0:1 or 10.0:1 (depending on specific variant and market)
Valvetrain:
2 valves per cylinder, pushrod actuated with BMW's patented "Integral Valve Timing" (often referred to as cam phasing, though technically different).
Horsepower:
Approx. 85-95 hp @ 6,750 rpm (varies slightly by model year and region)
Torque:
Approx. 98-105 Nm (72-77 lb-ft) @ 5,250 rpm (varies slightly)
Induction:
Bosch Motronic MA 2.4 or MA 2.4.2 fuel injection with 2 x 40mm throttle bodies.
Fuel Type:
Unleaded gasoline, minimum 91 RON (87 AKI)
Type:
Electronic ignition with two spark plugs per cylinder for improved combustion efficiency and emissions control.
Type:
6-speed manual gearbox
Type:
N/A (Only manual transmission offered)
Clutch:
Single dry plate clutch, hydraulically actuated.
Final Drive:
Enclosed driveshaft with final bevel gear drive to the rear wheel.
Gear Ratios:
Specific gear ratios will be detailed in the manual, but typical for this era and model.
Length:
Approx. 2230 mm (87.8 in)
Width:
Approx. 920 mm (36.2 in) at handlebars
Height:
Approx. 1400 mm (55.1 in) at seat
Wheelbase:
Approx. 1486 mm (58.5 in)
Ground Clearance:
Approx. 170 mm (6.7 in)
Dry Weight:
Approx. 220 kg (485 lbs)
Wet Weight:
Approx. 236 kg (520 lbs) (with fluids, approx.)
Gross Vehicle Weight Rating:
Typically around 450 kg (992 lbs)
Fuel Capacity:
20.5 liters (5.4 US gal), including 4-liter reserve
ABS:
Optional BMW Motorrad ABS II or ABS-N system available on many models.
Braking System:
Dual 305mm front discs with 4-piston calipers, single 276mm rear disc with 2-piston caliper. ABS provides enhanced control.
Lighting:
Halogen headlight for excellent nighttime visibility.
Frame Design:
Robust steel tube frame providing stability and rider protection.
Instrument Cluster:
Analog tachometer and speedometer, multi-function LCD display showing fuel level, gear position (on later models), clock, trip meters, and warning lights. Some models featured heated grips.
ABS:
Optional integrated ABS system for enhanced braking safety.
Diagnostics:
On-board diagnostic port for connecting specialized BMW diagnostic tools, facilitating troubleshooting and error code retrieval.
Oil Change:
Typically every 10,000 km (6,000 miles) or annually.
Filter Replacement:
Oil filter with every oil change. Air filter as per inspection schedule (typically 20,000 km).
Valve Adjustment:
Every 20,000 km (12,000 miles).
Spark Plug Replacement:
Typically every 20,000 km (12,000 miles), especially given dual plugs.
Engine Oil:
BMW Motorrad recommended SAE 20W-50 or 15W-50 motorcycle specific synthetic or semi-synthetic oil meeting API SG or higher and JASO MA standards.
Engine Oil Capacity:
Approx. 3.0 liters (3.2 US quarts) with filter change.
Gearbox Oil:
SAE 75W-90 or 80W-90 GL-5 gear oil.
Final Drive Oil:
SAE 80W-90 GL-5 gear oil.
Brake Fluid:
DOT 4 or DOT 5.1 (refer to manual for specific model year recommendation).
Coolant:
Not applicable (air/oil-cooled).
Common Problems:
Hall sender unit failures (leading to intermittent running or no-start), ABS modulator issues (especially on earlier models), drive shaft U-joints, clutch slave cylinder leaks, fuel pump issues, seat latch wear.
Maintenance Focus:
Regular attention to valve clearances, spark plugs, and oil changes are critical for longevity. Lubrication of the driveshaft and splines is also important.
Bmw Motorcycles:
BMW has a long and distinguished history in motorcycle manufacturing, particularly known for its robust engineering, boxer engines, and innovative designs, dating back to the early 20th century.
R Series Gs:
The R1150GS is a direct evolution of the highly successful R100GS and R1100GS models, building upon their adventure touring capabilities and comfort.
R1150Gs Introduction:
Introduced in 1999 (for model year 2000 in some markets), it represented a significant upgrade over the R1100GS with increased displacement, more power, and refinements.
Production Period For This Manual:
1993-1999 (This range likely covers the R1100GS generation predominantly, with the R1150GS typically starting model year 2000. The manual title might be slightly anachronistic, or the seller is bundling related early generation manuals. Assuming the primary focus is the R1150GS era, but the manual might cover the transition or closely related models like the R1100GS.)
Manufacturing Location:
Germany (primarily BMW's Berlin-Spandau plant)
