Segment:
Cruiser Motorcycle
Target Audience:
BMW R850C and R1200C owners, independent motorcycle mechanics, enthusiasts undertaking DIY repairs
Key Competitors:
Harley-Davidson, Indian, other European cruisers of the era
Vehicle Design:
Shaft-driven boxer twin engine, unique cruiser styling with BMW engineering
Manual Value:
Provides in-depth technical knowledge essential for maintaining and repairing these specific BMW models
Engine:
Complete engine overhaul, component diagnostics, timing, fuel injection, lubrication, cooling, ignition system
Transmission:
Gearbox removal, disassembly, assembly, troubleshooting, clutch system, final drive
Chassis:
Frame inspection and repair, suspension (front fork, rear shock absorber), steering system
Brakes:
Brake system diagnostics, hydraulic system, brake pad replacement, caliper overhaul, ABS system (if equipped)
Electrical:
Wiring diagrams, lighting systems, starter, alternator, battery, ignition switch, fuses and relays, instrument cluster, basic diagnostics
Fuel System:
Fuel tank, fuel pump, fuel injectors, fuel lines, EFI control unit
Exhaust System:
Exhaust pipe removal and installation, catalytic converter (if applicable)
Bodywork:
Fairing removal and installation, seat, fuel tank cover, fenders, trim pieces
Maintenance:
Oil change, filter replacement, spark plug replacement, air filter cleaning/replacement, brake fluid flush, coolant flush, lubrication points
Troubleshooting:
Diagnostic charts for common problems, symptom-based repair guides, electrical fault finding
Repair:
Component removal, disassembly, inspection, repair, and reassembly for all major systems
Diagnostics:
Step-by-step diagnostic procedures, use of special tools (if applicable), interpretation of symptoms
Depth Level:
Comprehensive (from basic owner maintenance to complete engine rebuilds and advanced electrical diagnostics)
Detail Level:
Detailed step-by-step instructions with accompanying diagrams and torque specifications
Engine Type:
Four-stroke, air-cooled boxer twin-cylinder
Bore Stroke R850C:
85 mm x 70.5 mm
Bore Stroke R1200C:
101 mm x 76 mm
Displacement R850C:
848 cc
Displacement R1200C:
1170 cc
Horsepower R850C:
Approx. 70 hp (51 kW) at 6,750 rpm
Torque R850C:
Approx. 81 Nm (60 lb-ft) at 5,000 rpm
Horsepower R1200C:
Approx. 61 hp (45 kW) at 6,000 rpm (early models), later models up to 67 hp (49 kW)
Torque R1200C:
Approx. 98 Nm (72 lb-ft) at 3,750 rpm (early models), later models up to 100 Nm (74 lb-ft)
Fuel Delivery:
Electronic Fuel Injection (EFI), Bosch Motronic system
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Crash Safety Standards:
N/A (Motorcycle specific safety assessments apply, not typical car ratings)
Braking System:
Dual disc front brakes, single disc rear brake; Optional BMW Motorrad ABS II
Lighting:
Halogen headlamp, LED tail light (on some later models)
Oil Change Interval:
Every 10,000 km or annually, whichever comes first (refer to manual for specific oil grade and capacity)
Valve Clearance Check:
Every 20,000 km (typical for these models)
Spark Plug Replacement:
Every 20,000 km (check manual for specific plug type)
Engine Oil Type:
SAE 20W-50 or 15W-50 motorcycle specific oil (API SG or higher)
Engine Oil Capacity:
Approx. 3.0 liters (with filter change)
Transmission Oil Type:
BMW recommends specific gearbox oil, typically API GL-5 or equivalent
Final Drive Oil Type:
SAE 90 Hypoid gear oil
Common Wear Item:
Clutch wear (especially if ridden aggressively), potential for fork seal leaks, electrical connector corrosion
Potential Faults:
ABS sensor issues, intermittent fuel pump operation (older units), regulator/rectifier failure
Brand Legacy:
BMW has a long-standing history of producing high-quality motorcycles known for engineering excellence and innovation, dating back to 1923.
Cruiser Segment Entry:
The R850C and R1200C represented BMW's dedicated entry into the cruiser motorcycle market, leveraging their boxer engine platform in a style more aligned with American cruiser aesthetics.
R1200C Development:
The R1200C, in particular, was a significant departure for BMW, designed to appeal to a broader audience including those traditionally drawn to American cruiser brands.
Manufacturing Location:
Berlin, Germany (BMW Motorrad plant)
Production Run Start:
1997 for R850C and R1200C
Motorcycle Press Reviews:
Generally well-received for unique styling and BMW build quality, though sometimes criticized for not being a 'true' cruiser by traditionalists.
Reliability Perception:
High due to BMW's reputation, but requires diligent maintenance as per the manual's guidance.
Certification Standards:
Manufactured to comply with all relevant European and international motorcycle safety and emissions standards of the era.
