Motorcycle Models Covered:
R1100RT, R1100RS, R850GS, R1100GS, R850R, R1100R
Model Years Covered:
1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Chassis Codes:
R259 (R1100 models), R259 (R850 models)
Target Audience:
BMW motorcycle owners seeking to perform their own maintenance and repairs, DIY enthusiasts, independent repair shops.
Value Proposition:
Provides dealership-level repair information at a fraction of the cost of professional servicing, empowering owners with knowledge and saving money on repairs.
Authenticity:
Identical information used by BMW dealership technicians.
Convenience:
Digital format allows for selective printing, searching, and easy access.
Comprehensiveness:
Covers all major repair and maintenance procedures for multiple models and years.
Engine:
Engine disassembly, assembly, inspection, tuning, troubleshooting, oil flow, lubrication system, cooling system (oil-cooled), valve adjustment, timing chain/belt inspection, piston/cylinder inspection, crankshaft/connecting rod inspection.
Fuel System:
Fuel injection system (Bosch Motronic), throttle body, injectors, fuel pump, fuel filter, fuel lines, fuel tank removal and installation.
Transmission And Drivetrain:
Clutch inspection and replacement, gearbox disassembly and assembly, gear selection mechanism, final drive (shaft drive) inspection, maintenance, and overhaul.
Electrical System:
Wiring diagrams, charging system (alternator, regulator), ignition system (spark plugs, coils, ECU), lighting systems (headlights, taillights, turn signals), starting system (starter motor, battery), instrument cluster, sensor diagnostics, troubleshooting electrical faults.
Chassis And Suspension:
Front suspension (Telelever system for RT/RS/GS, conventional forks for R models), rear suspension (Paralever system), shock absorber adjustment and replacement, fork seal replacement, steering head bearing maintenance, wheel bearing inspection.
Braking System:
Front and rear brake systems (ABS II or optional ABS-IV), brake pad replacement, brake fluid flush and bleeding, caliper maintenance, brake line inspection and replacement, master cylinder overhaul.
Bodywork And Fairings:
Fairing removal and installation, body panel repair and replacement, seat removal, luggage system maintenance (RT models), wind deflector adjustments.
General Maintenance:
Oil changes, filter replacement, air filter cleaning/replacement, spark plug replacement, tire pressure checks, chain lubrication (if applicable to specific R models, though most are shaft drive), bolt torquing.
Troubleshooting:
Diagnostic procedures for common problems, error code interpretation (if applicable to Motronic system), systematic fault finding.
Engine Repair:
Top-end rebuilds, bottom-end overhauls, piston ring replacement, bearing replacement, gasket and seal replacement, complete engine teardown and reassembly.
Suspension Repair:
Fork seal replacement, shock absorber servicing, linkage bearing maintenance, steering head bearing adjustment.
Electrical Repair:
Wiring harness repair, component testing and replacement (alternator, starter, ignition coils), sensor diagnostics and replacement, fault finding using wiring diagrams.
Brake System Overhaul:
Brake caliper rebuilding, master cylinder overhaul, ABS system troubleshooting and bleeding procedures.
Depth:
Professional-level, dealership-grade
Documentation Style:
Step-by-step instructions, detailed diagrams, high-resolution illustrations, wiring schematics, technical specifications.
Engine Type:
Air/Oil-cooled, four-stroke, boxer twin-cylinder engine
Displacement:
R1100 models: 1085cc; R850 models: 848cc
Bore X Stroke:
R1100: 99mm x 70.5mm; R850: 80.9mm x 83.2mm
Compression Ratio:
R1100: 10.0:1; R850: 8.5:1 (approximate, check manual for exact)
Horsepower R1100:
Approx. 90 hp @ 7,250 rpm (varies slightly by model)
Torque R1100:
Approx. 98 Nm (72 lb-ft) @ 5,250 rpm (varies slightly by model)
Horsepower R850:
Approx. 70 hp @ 7,500 rpm (varies slightly by model)
Torque R850:
Approx. 77 Nm (57 lb-ft) @ 4,750 rpm (varies slightly by model)
Fuel Induction:
Electronic Fuel Injection (EFI) with Bosch Motronic engine management
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Oil Type:
Refer to manual for specific BMW recommended oil viscosity and API classification (e.g., SAE 20W-50 or 15W-50)
Oil Capacity:
Approx. 4.0 liters (check manual for exact capacity with/without filter change)
Cooling Method:
Air-cooled with Oil Cooler
Oil Change Interval:
Refer to manual, typically every 10,000 km or annually
Valve Adjustment Interval:
Refer to manual, typically every 10,000-20,000 km
Major Service Interval:
Refer to manual, typically at 20,000 km or 40,000 km milestones
Brake Fluid:
DOT 4 (refer to manual for exact specification and type)
Transmission Oil:
Refer to manual for specific BMW recommended gear oil viscosity and API classification (e.g., SAE 75W-90)
Final Drive Oil:
Refer to manual for specific BMW recommended gear oil viscosity and API classification (e.g., SAE 75W-140)
Common Wear Items:
Clutch wear, alternator brushes, fuel pump, wheel bearings, steering head bearings, brake lines (age-related degradation).
Electrical Quirks:
Intermittent electrical connections, issues with ABS sensors, battery drain from accessory wiring.
Engine Specific:
Potential for oil leaks from cylinder base gaskets, occasional fuel injector issues, valve seat wear over very high mileage.
Heritage Focus:
BMW Motorrad's long history of producing robust, reliable, and technologically advanced motorcycles, particularly known for boxer engines and touring capabilities.
Evolution Summary:
The R1100 series represented a significant evolution from previous BMW boxer twins, incorporating fuel injection, a revised suspension (Telelever front, Paralever rear), and more modern styling and ergonomics, catering to touring (RT), sport-touring (RS), and naked (R) segments, while the GS models offered adventure-touring capabilities.
Manufacturing Location:
Germany
