Segment:
Cruiser segment of the motorcycle market.
Target Audience:
Owners and independent mechanics of the BMW R850C motorcycle seeking detailed repair and maintenance information.
Positioning:
The R850C was positioned as a more accessible entry point into BMW's cruiser lineup, offering a balance of performance and comfort.
Style:
Distinctive cruiser styling with BMW's engineering heritage.
Engine Type:
Air-cooled, two-cylinder boxer engine, a BMW hallmark.
Engine:
Comprehensive coverage: Engine disassembly, assembly, inspection, tuning, troubleshooting.
Transmission:
Detailed procedures for gearbox, clutch, and drive shaft maintenance and repair.
Electrical System:
Wiring diagrams, ignition system, lighting, starting system, charging system, diagnosis.
Brakes:
Front and rear brake system maintenance, bleeding, component replacement, ABS (if applicable).
Suspension:
Front fork (telescopic), rear swingarm, shock absorber, and related components.
Fuel System:
Fuel injection system, fuel pump, injectors, throttle body, fuel tank, fuel lines.
Cooling System:
Oil cooling system components and maintenance procedures.
Exhaust System:
Exhaust manifold, muffler, catalytic converter (if equipped) inspection and maintenance.
Bodywork And Frame:
Fairings, seats, fenders, frame inspection, and related component mounting.
Wheels And Tires:
Wheel bearing maintenance, tire replacement, and balancing.
Instrumentation And Controls:
Dashboard indicators, controls, levers, and cables.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug service, chain adjustment (if applicable).
Troubleshooting:
Diagnostic procedures for common and complex issues, fault code interpretation (if applicable).
Repair:
Step-by-step repair instructions for all major and minor components.
Disassembly Assembly:
Complete guides for engine, transmission, suspension, and other major assemblies.
Rebuilds:
Detailed procedures for engine and gearbox rebuilds.
Depth:
Comprehensive from basic maintenance to complete engine and transmission overhauls.
Diagnostics:
In-depth diagnostic information, including electrical system troubleshooting and potential fault codes.
Specifications:
Includes critical torque values, clearances, fluid capacities, and other technical data.
Digital Format:
Typically PDF for searchability and accessibility.
Print Quality:
Assumed high-quality based on mention of 'full Pictures, Diagrams'.
Binding:
If printed, likely professionally bound for durability in a workshop environment.
Paper Type:
If printed, typically heavy-duty paper stock suitable for workshop use.
Engine Type:
Four-stroke, two-cylinder boxer, air-cooled
Bore X Stroke:
90.0 mm x 66.0 mm (typical for R850 series)
Compression Ratio:
9.5:1 (typical for R850 series)
Valve Train:
Overhead camshafts (SOHC), 2 valves per cylinder
Horsepower:
Approximately 50-57 hp (depending on market and exact configuration)
Torque:
Approximately 77 Nm (57 lb-ft) at 4750 rpm (typical for R850 series)
Fuel Delivery:
Electronic Fuel Injection (EFI), typically Bosch Motronic
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/4 or 87 AKI
Oil Type:
Synthetic motorcycle oil, typically SAE 15W-50 or SAE 20W-50
Oil Capacity:
Approx. 2.5 - 3.0 liters with filter change
Oil Change Interval:
Typically every 5,000 - 10,000 km (3,000 - 6,000 miles) or annually, refer to manual for specifics.
Spark Plug Replacement:
Approx. 10,000 - 20,000 km (6,000 - 12,000 miles).
Valve Clearance Check:
Typically around 10,000 km (6,000 miles) or as specified by the manual.
Engine Oil Grade:
SAE 15W-50 or SAE 20W-50, API SG/SH or higher.
Transmission Oil Grade:
SAE 75W-90 GL-5.
Common Problems:
Potential for clutch slave cylinder leaks, rear main seal leaks, and ABS sensor issues. Refer to manual for detailed diagnostics.
Component Wear:
Normal wear and tear on wheel bearings, brake pads, and tires. Fuel pump longevity can be a factor.
Manufacturer:
Bayerische Motoren Werke AG (BMW)
Legacy:
BMW has a long history of motorcycle manufacturing, particularly known for its boxer engines and engineering excellence.
Series:
Part of the R series boxer platform, sharing lineage with models like the R850R and R1100R.
Cruiser Variant:
The 'C' designation signifies the cruiser variant, featuring styling cues like a lower seat, pulled-back handlebars, and often a different exhaust.
Production Years:
Production spanned from late 1990s into the early 2000s (specific years may vary by market).
