🏷️ Basic Information Identification Make: BMW Model: R850R Product Name: BMW R850 R850R 1994-2001 Workshop Service Repair Manual Codes Vin Decoder Prefix: WB Generation Production Years Covered: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 👋 Introduction Market Position Segment: Touring/Sport Touring Motorcycle Target Audience: BMW R850R owners, independent motorcycle mechanics, enthusiasts seeking in-depth knowledge. Competitive Analysis Key Competitors: Moto Guzzi California, Ducati ST2, Honda ST1100, Yamaha FJ1200 (though R850R offered a more accessible BMW Boxer experience). Key Features Vehicle Selling Points: Torquey Boxer-twin engine, shaft drive, comfortable ergonomics, BMW build quality, accessible performance. 📋 Manual Details Coverage Areas Documentation Scope: Complete Workshop Service Repair Manual Page Count Estimated Pages: 300-500 Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Mechanical Systems: Engine (all aspects), Transmission, Drivetrain, Clutch, Brakes (front and rear), Suspension (front and rear), Steering, Fuel System, Exhaust System, Cooling System, Lubrication System. Electrical Systems: Ignition System, Charging System, Starting System, Lighting System, Instrumentation, ECU, Wiring Diagrams, ABS (if equipped). Procedures Included Maintenance: Routine service, oil changes, filter replacement, lubrication, adjustments, valve clearance checks and adjustments, timing belt inspection/replacement (if applicable, though R850R uses a timing chain). Repair: Engine disassembly and reassembly, transmission overhaul, brake caliper rebuild, suspension component replacement, electrical component troubleshooting and replacement, fuel injection system diagnosis and repair. Troubleshooting: Diagnosis of common faults, error code interpretation (if applicable), systematic fault finding for various systems. Technical Depth Diagnostic Level: Advanced diagnostics, detailed troubleshooting guides, wiring schematics for accurate electrical fault finding. Rebuild Capability: Comprehensive procedures for complete engine and transmission rebuilds, including torque specifications, tolerances, and assembly sequences. 📊 Manual Specifications File Format Digital Quality: Searchable text, high-resolution images and diagrams, printable pages. Print Quality Reproducibility: High-quality reproduction of original factory diagrams and text. Binding Type Format Type: Digital Download (PDF) Paper Type Material Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, horizontally opposed twin-cylinder (Boxer) Displacement: 848 cc (850cc designation) Bore X Stroke: 90.0 mm x 66.0 mm Compression Ratio: 9.2:1 Performance Horsepower: 70 hp @ 6,750 rpm (approximate) Torque: 76 Nm (56 lb-ft) @ 5,000 rpm (approximate) Fuel System Fuel Delivery: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline (95 RON recommended) Lubrication Oil Type: SAE 20W-50 or SAE 15W-50 API SG/SH (refer to manual for specific BMW recommendations) Oil Capacity: Approximately 2.5 liters (with filter change) Ignition Ignition System: Distributorless Electronic Ignition (BMW Motronic) Cooling Cooling Method: Air Cooling 🔧 Transmission Standard Type: 5-speed manual gearbox Features Final Drive: Shaft drive Clutch: Single dry plate, hydraulically actuated Fluid Specifications Gearbox Oil: SAE 80W-90 API GL-5 (refer to manual for specific BMW recommendations) 📐 Dimensions Exterior Length: Approx. 2,240 mm (88.2 in) Width: Approx. 900 mm (35.4 in) Height: Approx. 1,370 mm (53.9 in) Weights Dry Weight: Approx. 219 kg (483 lbs) Gross Vehicle Weight Rating: Approx. 440 kg (970 lbs) Wheels And Tires Front Tire Size: 110/80 R18 Rear Tire Size: 140/80 R17 Wheel Bolt Pattern: N/A (Cast Aluminum Wheels, specific hub fitment) 🛡️ Safety Features Ratings Certification: Meets relevant European emissions and safety standards of its era. Active Features Braking System: Optional ABS (Anti-lock Braking System) available on some models. Front Brake: Dual 305 mm discs with 4-piston calipers Rear Brake: Single 277 mm disc with 2-piston caliper Passive Features Lighting: Halogen headlamp, LED taillight, standard turn signals. 💡 Technology Features Infotainment Dashboard Features: Analog speedometer and tachometer, LCD odometer, trip meter, fuel level, gear indicator (on some models), warning lights. Driver Assistance ABS System: Optional BMW Integral ABS (system varies slightly by year, manual covers its operation and maintenance). Connectivity Original Features: None (pre-smartphone era). 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 km (6,000 miles) or annually. Major Service Interval: Every 20,000 km (12,000 miles) for valve clearance checks, spark plug replacement, and full inspection. Fluid Specifications Brake Fluid: DOT 4 (refer to manual for specific BMW recommendations) Coolant: N/A (Air-cooled) Final Drive Oil: SAE 90 hypoid gear oil (refer to manual for specific BMW recommendations) Known Issues Common Wear Items: Clutch wear, front fork seals, exhaust header pipe corrosion, aging fuel lines, paralever pivot bearing wear. Electrical Concerns: Corrosion in connectors, failing starter solenoids, intermittent dash lights (common in older electronics). Engine Performance: Slightly rough idle if throttle bodies or injectors are dirty, potential for oil leaks around cylinder base gaskets and oil cooler. Parts References Oil Filter Part Number: e.g., Mann-Filter MW 64, Mahle OX 147 (always verify with manual or parts catalog) Spark Plug Type: e.g., NGK CR9EK, Champion RA6HC (refer to manual for exact fitment) 📚 Vehicle History Brand Heritage Heritage Context: BMW Motorrad has a long history of producing reliable and well-engineered motorcycles, particularly known for its boxer-twin engine configuration and shaft drive. Model Evolution Predecessor Lineage:...