🏷️ Basic Information Identification Make: BMW Model: R850R / R850GS Model Code: R850R (248), R850GS (247) Generation Production Years: 1994-2001 👋 Introduction Market Position Target Audience: BMW R850R and R850GS owners, independent motorcycle mechanics, enthusiasts Competitive Analysis Value Proposition: Provides essential, detailed information for maintaining and repairing the R850 series, saving on dealership service costs. Key Features Detail Level: Extremely detailed with clear instructions and technical data often found only in official factory service manuals. Diagnostic Focus: Strong emphasis on troubleshooting and diagnostic procedures for electronic and mechanical systems. 📋 Manual Details Coverage Areas Vehicle Years Covered: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 Model Variants Covered: R850R, R850GS Page Count Estimated Page Count: 300+ Manual Type Type: Full Service & Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: Detailed overhaul, troubleshooting, diagnosis, tuning, lubrication, cooling system Transmission: Clutch, gearbox (5-speed), final drive maintenance and repair Fuel System: Fuel injection (Bosch Motronic MA 2.2/MA 2.4), fuel pump, injectors, throttle body Electrical System: Ignition system, starter motor, alternator, battery, lighting, wiring diagrams, ECU diagnosis Brakes: Front and rear brake systems, ABS (optional), hydraulic lines, calipers, discs Suspension: Front Telelever suspension, rear Monolever suspension, shock absorbers, fork seals Chassis Bodywork: Frame, subframe, fuel tank, seat, fairings, wheels, tires Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement, valve clearance adjustment Troubleshooting: Diagnostic procedures for common and uncommon faults across all systems Repair: Step-by-step repair instructions for major components and sub-assemblies Wiring Diagrams: Detailed electrical schematics for all circuits Torque Specifications: Comprehensive list of torque values for critical fasteners Engine Tuning: Idle speed adjustment, throttle response optimization, CO mixture settings (where applicable). Wheel Tire Service: Wheel bearing replacement, tire mounting and balancing, spoke tensioning (R850GS). Exhaust System: Inspection, repair, and replacement of exhaust components. Technical Depth Depth: Comprehensive, covering routine maintenance to complete engine and transmission rebuilds Component Rebuild: Detailed procedures for rebuilding the engine, gearbox, fuel injection system, and brake calipers. 📊 Manual Specifications File Format Searchable Text: Yes Printable: Yes Print Quality Image Resolution: High-resolution for clarity of diagrams and photos Binding Type Binding: N/A (Digital) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, 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) Compression Ratio: 9.7:1 Valve Train: 2 valves per cylinder, pushrod-operated overhead valves Performance Horsepower: Approx. 70 hp (52 kW) @ 7500 rpm (R850R), Approx. 70 hp (52 kW) @ 7500 rpm (R850GS) Torque: Approx. 77 Nm (57 lb-ft) @ 5000 rpm (R850R), Approx. 77 Nm (57 lb-ft) @ 5000 rpm (R850GS) Fuel System Fuel Delivery: Bosch Motronic MA 2.2 / MA 2.4 Electronic Fuel Injection (EFI) Fuel Type: Unleaded Premium (95 RON / 91 AKI) Lubrication Oil Capacity With Filter: Approx. 4.0 liters (4.2 US qt) Recommended Oil Grade: SAE 20W-40 or 20W-50 motorcycle specific oil Cooling System Type: Air cooling 🔧 Transmission Standard Type: 5-speed constant mesh gearbox Clutch: Single dry plate, diaphragm spring clutch Final Drive: Shaft drive with BMW Monolever system Features Gear Ratios: Detailed in manual (e.g., 1st: 3.46, 2nd: 2.40, 3rd: 1.73, 4th: 1.35, 5th: 1.12) Final Drive Ratio: 33:11 (3.00:1) 📐 Dimensions Exterior Length: R850R: Approx. 2,230 mm (87.8 in), R850GS: Approx. 2,230 mm (87.8 in) Width: R850R: Approx. 850 mm (33.5 in), R850GS: Approx. 910 mm (35.8 in) (inc. mirrors) Height: R850R: Approx. 1,320 mm (52.0 in) (seat height adjustable), R850GS: Approx. 1,450 mm (57.1 in) (seat height adjustable) Weights Dry Weight: R850R: Approx. 215 kg (474 lbs), R850GS: Approx. 227 kg (500 lbs) Gross Vehicle Weight Rating: Approx. 440 kg (970 lbs) (R850R/GS) Fuel Tank Capacity: R850R: 20 liters (5.3 US gal), R850GS: 20 liters (5.3 US gal) 🛡️ Safety Features Ratings ABS: Optional BMW Integral ABS (available on later models, detailed in manual) Active Features Braking System: Dual 305 mm discs with 2-piston calipers (front), Single 276 mm disc with 2-piston caliper (rear) Passive Features Lighting: Halogen headlight, LED taillight, integrated turn signals 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer and speedometer, LCD multi-function display (odo, trip, time, temp) Driver Assistance ABS: Optional Integral ABS system, which combines braking functions and provides anti-lock protection for both wheels. Connectivity Diagnostic Interface: Early OBD-II compatible systems, with specific BMW diagnostic connectors detailed in the manual. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 km (6,200 miles) or annually, whichever comes first Valve Clearance Check: Every 20,000 km (12,500 miles) Spark Plug Replacement: Every 20,000 km (12,500 miles) Fluid Specifications Engine Oil Spec: API SG/SH or higher, JASO MA compliant, viscosity SAE 20W-40 or 20W-50 Transmission Oil Spec: SAE 80W-90 API GL-5 gear oil Final Drive Oil Spec: SAE 80W-90 API GL-5 gear oil Known Issues Common Wear Items:...