🏷️ Basic Information Identification Make: BMW Model: R 850 R Year: 1997 Codes Engine Code Family: M44 👋 Introduction Market Position Positioning: The BMW R 850 R of 1997 was positioned as a comfortable, versatile touring motorcycle, bridging the gap between smaller displacement models and the larger R 1100 series, offering accessible BMW boxer-twin performance. Competitive Analysis Competitors: Competed with other mid-range touring/sport-touring motorcycles from brands like Moto Guzzi, Honda (e.g., Nighthawk series), and Yamaha (e.g., XJ series). Key Features Features: Boxer-twin engine, shaft drive, comfortable ergonomics, ABS (optional), well-suited for touring and commuting. 📋 Manual Details Coverage Areas Scope: All Models/Engines/Trim/Transmissions Types Page Count Estimated Page Count: 300-400 Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Clutch, Final Drive Chassis: Frame, Suspension (Front and Rear), Steering, Brakes (Front and Rear) Electrical: Ignition System, Lighting, Instruments, Starter, Charging System, Fuel Injection System (Motronic) Bodywork: Body Panels, Fuel Tank, Seat, Fairings, Luggage Systems Procedures Included Maintenance: Scheduled Service, Oil Changes, Filter Replacements, Chain/Shaft Drive Adjustment, Spark Plug Replacement, Valve Clearance Adjustment Troubleshooting: Diagnostic Flowcharts, Common Faults and Solutions, Electrical System Diagnostics Repair: Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Service, Electrical Component Repair/Replacement Technical Data: Torque Specifications, Fluid Capacities, Clearances, Wiring Diagrams, Component Identification Wiring Diagrams: Detailed electrical system wiring diagrams for troubleshooting and repairs. Technical Depth Depth: Comprehensive: From basic maintenance and routine servicing to in-depth diagnostics and full component overhauls. Diagnostic Codes: Information on reading and interpreting diagnostic trouble codes (DTCs) if applicable to the Motronic system. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text content for easy navigation and keyword searching. Digital Rights: PDF Download - Allows for easy distribution and access. Print Quality Printability: Printable for physical reference, allowing users to print specific sections or the entire manual. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Type: Air-cooled, four-stroke, boxer-twin engine Displacement: 848 cc Bore X Stroke: 90.0 mm x 66.0 mm Compression Ratio: 9.7:1 Valvetrain: 2 valves per cylinder, pushrod actuated Performance Horsepower: Approx. 70 hp (52 kW) at 7,500 rpm Torque: Approx. 79 Nm (58 lb-ft) at 5,500 rpm Fuel Delivery: Electronic fuel injection with single injector per cylinder. Fuel System Induction: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, minimum 91 octane Lubrication Oil Type: BMW Motor Oil Advantec Ultimate Performance SAE 15W-50 (or equivalent API SG/SH/SJ specification) Oil Capacity: Approx. 2.5 Liters (2.6 US qt) without filter change, 2.7 Liters (2.9 US qt) with filter change 🔧 Transmission Standard Type: 5-speed manual transmission Drive System: Shaft drive Features Clutch: Single dry plate, hydraulically actuated Gearbox Oil Type: SAE 75W/90 GL-5 hypoid gear oil Gearbox Oil Capacity: Approx. 0.5 Liters (0.53 US qt) Final Drive Oil Type: SAE 75W/90 GL-5 hypoid gear oil Final Drive Oil Capacity: Approx. 0.2 Liters (0.21 US qt) 📐 Dimensions Exterior Length: Approx. 2,180 mm (85.8 in) Width: Approx. 830 mm (32.7 in) (including mirrors) Height: Approx. 1,330 mm (52.4 in) (to handlebar) Wheelbase: Approx. 1,430 mm (56.3 in) Weights Dry Weight: Approx. 213 kg (470 lbs) Gross Vehicle Weight Rating: Approx. 450 kg (992 lbs) Fuel Capacity Tank Capacity: 19 Liters (5.0 US gal), including 3-liter reserve 🛡️ Safety Features Ratings ABS: Optional BMW Motorrad Integral ABS system available. Active Features Brakes: Dual 305 mm discs with 4-piston calipers (front), Single 276 mm disc with 2-piston caliper (rear) Suspension Front: BMW Motorrad Telelever front suspension Suspension Rear: Paralever single-sided swingarm with monoshock Passive Features Lighting: Halogen headlight, LED taillight 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer and speedometer, digital odometer, trip meters, fuel level indicator, warning lights. Driver Assistance ABS: Optional BMW Motorrad Integral ABS II, a sophisticated anti-lock braking system. Connectivity Accessories: Provisions for heated grips, auxiliary power sockets, and luggage systems were available. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 km (6,000 miles) or annually, whichever comes first. Valve Clearance Check Interval: Every 20,000 km (12,000 miles) Brake Fluid Change Interval: Every 2 years Spark Plug Replacement Interval: Every 20,000 km (12,000 miles) Air Filter Replacement Interval: Every 20,000 km (12,000 miles) or as needed based on operating conditions. Fluid Specifications Engine Oil Spec: BMW Motor Oil Advantec Ultimate Performance SAE 15W-50 (or equivalent API SG/SH/SJ) Transmission Oil Spec: SAE 75W/90 GL-5 hypoid gear oil Final Drive Oil Spec: SAE 75W/90 GL-5 hypoid gear oil Brake Fluid Spec: DOT 4 brake fluid Known Issues Common Issues: Some models may experience issues with the fuel pump relay, stator, or the ABS system if not properly maintained. Occasional wear on the clutch slave cylinder seal. Maintenance Notes: Regular inspection of the shaft drive boot and U-joint is recommended. Valve clearance checks are...