Target Audience:
Owners of BMW R1100 and R850 motorcycles seeking to perform their own maintenance and repairs, as well as independent repair shops.
Motorcycle Segment:
Sport Touring (RS/RT), Standard/Naked (R/R Roadster), Adventure Touring (GS).
Value Proposition:
Provides professional-level repair and maintenance guidance at a fraction of the cost of dealership labor. Offers direct access to the same information used by trained technicians.
Manual Advantage:
Enables significant cost savings on repairs and maintenance, empowers users with technical knowledge, and ensures proper upkeep of the motorcycle.
Manual Coverage Scope:
Comprehensive service, maintenance, and repair for all specified BMW R1100 and R850 models.
Estimated Page Count:
Estimated 300-500 pages (typical for this level of detail, exact count not provided).
Manual Type:
Workshop/Service/Repair Manual
Diagram And Illustration Quality:
Features exploded views and detailed diagrams to clarify component relationships and assembly sequences.
Searchability:
Bookmark functionality in PDF allows for quick navigation to specific sections and topics.
Engine And Powertrain:
Engine overhaul, lubrication, cooling system (radiator), fuel supply, fuel tank, exhaust system, clutch, gearbox, final drive.
Chassis And Suspension:
Front fork, steering, rear wheel drive (Paralever system), brakes (front and rear), wheels and tires, frame, fairing, dual seat.
Electrical And Instruments:
General electrical system, ignition system, lighting, instruments, starter system, charging system.
Body And Fairings:
Removal, installation, and repair of fairings, body panels, seat components, and associated hardware.
Maintenance Procedures:
Routine maintenance checks, lubrication schedules, fluid changes, filter replacements, spark plug servicing, valve clearance adjustment.
Diagnostic And Repair Procedures:
Step-by-step repair instructions, troubleshooting guides, component disassembly and reassembly, diagnostic procedures for electrical and mechanical faults.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all systems, crucial for troubleshooting electrical faults.
Troubleshooting Guides:
Systematic troubleshooting flowcharts and guides for common mechanical and electrical issues.
Technical Depth:
Comprehensive, from basic adjustments and fluid changes to complete engine rebuilds and electrical system diagnostics. Suitable for both DIY enthusiasts and professional mechanics.
Torque Specifications:
Detailed torque specifications for all critical fasteners, essential for correct assembly and preventing damage.
Electrical Diagnostics:
Detailed coverage of the Motronic engine management system, ignition, and charging systems, including diagnostic procedures for sensor faults.
Digital Features:
Downloadable for immediate access and offline use.
Printability:
Printable at user's discretion, enabling creation of physical copy. High-resolution diagrams are essential for clarity.
Binding Type For Printed Version:
N/A (Digital PDF - printing and binding is user-dependent)
Paper Type For Printed Version:
N/A (Digital PDF - paper type is user-dependent)
Engine Type:
Air-cooled, four-stroke, boxer-twin cylinder, DOHC, four valves per cylinder.
Engine Displacement:
R1100 models: 1085 cc; R850 models: 848 cc.
Bore X Stroke:
R1100: 99 mm x 70.5 mm; R850: 87.4 mm x 69.3 mm.
R1100 Horsepower:
Approximately 90-95 hp @ 7,250 rpm (model dependent, e.g., R1100RT often slightly lower).
R1100 Torque:
Approximately 97 Nm (72 lb-ft) @ 5,250 rpm (model dependent).
R850 Horsepower:
Approximately 70-75 hp @ 7,500 rpm (model dependent).
Fuel Delivery:
Bosch Motronic fuel injection system.
Fuel Type Recommendation:
Unleaded gasoline, minimum 91 octane (RON+MON)/95 ROZ.
Cooling Method:
Air-cooled with oil cooling circuit (oil cooler typically integrated into the engine oil circulation).
Transmission Type:
5-speed, constant mesh gearbox.
Optional Transmission:
N/A (All models specified use a 5-speed manual transmission).
Clutch Type:
Single dry plate clutch, operated hydraulically.
Final Drive:
Shaft drive via BMW's Paralever system.
R1100Gs Dry Weight:
Approx. 231 kg (510 lbs).
R1100Rt Dry Weight:
Approx. 265 kg (584 lbs).
R850Gs Dry Weight:
Approx. 225 kg (496 lbs).
Fuel Tank Capacity:
Typically 20-25 liters (5.3-6.6 US gal), depending on the specific model variant.
Safety Features Overview:
ABS II (Anti-lock Braking System) was an optional, but highly sought-after, safety feature on many of these models, particularly the R1100RT and R1100RS.
ABS System:
Availability of BMW Motorrad ABS II (2-channel system) for enhanced braking control.
Braking System:
Integrated BMW Motorrad Integral ABS on later models (partial integral braking), otherwise conventional dual-disc front, single-disc rear brake systems.
Instrumentation:
Comprehensive analogue and digital displays including speedometer, tachometer, fuel level, gear indicator (on some models), temperature gauge, warning lights.
ABS Ii Functionality:
The optional ABS II system significantly enhances braking safety by preventing wheel lock-up under heavy braking.
Diagnostic Interface:
Early diagnostic interfaces may require specific BMW tools or manual troubleshooting procedures detailed in the manual.
Oil Change Interval:
Typically every 10,000 km (6,000 miles) or annually, whichever comes first.
Valve Adjustment Interval:
Approximately every 20,000 km (12,000 miles).
Air Filter Replacement Interval:
Typically every 10,000 - 20,000 km (6,000 - 12,000 miles), or as needed based on operating conditions.
Engine Oil Specification:
SAE 20W-50 or SAE 15W-40 motorcycle-specific engine oil (e.g., BMW Advanced Motorcycle Oil or equivalent).
Gearbox Oil Specification:
Hypoid gear oil, API GL-4 or GL-5, SAE 75W-90 or 80W-90 (e.g., BMW Gear Oil).
Final Drive Oil Specification:
Hypoid gear oil, API GL-5, SAE 80W-90 (e.g., BMW Final Drive Oil).
Brake Fluid Specification:
DOT 4.
Coolant Type:
N/A (Air-cooled engine).
Common Wear Items:
Clutch plates, wheel bearings, alternator brushes, fuel pump strainers, ignition coil degradation, regulator/rectifier failure (on some models).
Para Lever Pivot Bearings:
Wear in the Paralever pivot bearings can lead to imprecise handling and clunking noises.
Fuel Injector Clogging:
Occasional clogging of fuel injectors due to fuel quality or contamination, necessitating cleaning or replacement.
ABS System Maintenance:
Proper bleeding and maintenance of the ABS hydraulic system are critical for its functionality.
Bmw Motorcycle Philosophy:
BMW's reputation for robust engineering, shaft drive reliability, and rider comfort, particularly in the touring and adventure segments, is evident in these models.
Boxer Engine Development:
These models represent a significant evolution from earlier airheads, introducing DOHC, four-valve heads, and electronic fuel injection, contributing to increased performance and refinement.
Manufacturing Location:
Germany.
