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.