Target Audience:
Owners and mechanics seeking comprehensive and accurate repair information for the 1999 BMW R850C.
Manual Authenticity:
Actual Genuine Repair Service Factory Manuals, not third-party alternatives.
Content Origin:
Directly from factory trained technicians and official BMW documentation.
Cost Savings:
Enables owners to perform their own servicing, potentially saving $50-$60 per hour in labor costs.
Ease Of Use:
User-friendly interface, no advanced computer skills required to view and print.
Documentation Quality:
Includes hundreds of pages of detailed illustrations, diagrams, and specifications.
Engine Management:
Detailed coverage of engine management systems, including fault diagnosis and analysis.
Fuel System:
Complete information on the fuel system, including components, operation, and service.
Cooling System:
In-depth coverage of the cooling system, maintenance, and troubleshooting.
Engine Top End:
Detailed procedures for top-end engine components, including cylinder heads, valves, and camshafts.
Clutch:
Comprehensive service and repair procedures for the clutch assembly.
Lubrication System:
Information on the engine lubrication system, including oil pump, passages, and oil changes.
Crankshaft Transmission:
Detailed coverage of the crankshaft and transmission systems, including repair and overhaul.
Wheels Tires:
Specifications and service information for wheels and tires, including mounting and balancing.
Final Drive:
Procedures for the final drive system, including maintenance and repair.
Brakes:
Complete brake system diagnostics, maintenance, and repair, including hydraulic components and pads/rotors.
Suspension:
Detailed information on suspension components, including forks, shocks, and linkage.
Steering:
Service and repair procedures for the steering system, including head bearings.
Frame:
Information related to the motorcycle frame, including inspection and potential repairs.
Electrical System:
Extensive coverage of the electrical system, including wiring diagrams, component testing, and troubleshooting.
General Information:
General specifications, vehicle identification, and fundamental operating principles.
Routine Maintenance:
Covers all routine maintenance tasks, from oil changes to fluid checks.
Troubleshooting:
Advanced troubleshooting guide with diagnostic techniques and problem-solving strategies.
Engine Repair:
Step-by-step instructions for engine repair and rebuilding.
Transmission Service:
Detailed procedures for transmission maintenance and repair.
Brake System Repair:
Comprehensive instructions for servicing and repairing the braking system.
Electrical Diagnostics:
Procedures for diagnosing and repairing electrical faults, including wiring diagram interpretation.
Suspension Adjustment:
Guidance on adjusting and repairing suspension components.
Engine Removal Installation:
Detailed steps for removing and reinstalling the engine assembly.
Part Identification Testing:
Techniques for testing suspected parts, including 'secret techniques' used by top mechanics.
Prevention Tips:
Common tips to prevent common issues before they escalate.
Depth:
Extremely detailed, covering everything from basic maintenance to complete rebuilds and restorations, intended for both owners and professional technicians.
Engine Type:
Air-cooled flat-twin (boxer) engine
Displacement:
848 cc (51.7 cu in)
Bore X Stroke:
90.0 mm x 66.0 mm (3.54 in x 2.60 in)
Horsepower:
Approximately 50 hp (37 kW) at 6750 rpm (specific to R850C, may vary slightly).
Torque:
Approximately 71 Nm (52 lb-ft) at 4750 rpm (specific to R850C, may vary slightly).
Fuel Delivery:
Electronic Fuel Injection (Bosch Motronic)
Fuel Type:
Unleaded gasoline (premium recommended)
Oil Capacity:
Approximately 2.5 liters (2.6 US qt) with filter change.
Oil Change Interval:
Typically every 10,000 km (6,000 miles) or annually, whichever comes first (refer to manual for exact BMW specifications).
Valve Clearance Check:
Recommended at major service intervals, e.g., 20,000 km (12,000 miles) (refer to manual for exact BMW specifications).
Engine Oil Spec:
SAE 20W-40 or SAE 15W-50 synthetic motorcycle oil (specific BMW approval codes apply, consult manual).
Brake Fluid Spec:
DOT 4 brake fluid (refer to manual for exact BMW specifications and bleeding procedures).
Transmission Oil Spec:
Hypoid gear oil, API GL-5, SAE 75W-90 (refer to manual for exact BMW specifications).
Final Drive Oil Spec:
Hypoid gear oil, API GL-5, SAE 75W-90 (refer to manual for exact BMW specifications).
Common Wear Items:
Typical wear items include clutch plates, brake pads, fork seals, and head bearings. The manual would detail inspection and replacement.
Electrical Connections:
As with many motorcycles of this era, corrosion or loosening of electrical connectors can be an issue, well-covered by the electrical system diagnostics in the manual.