🏷️ Basic Information Identification Make: BMW Model: R850R / R850C Product Type: Service and Repair Manual Codes Engine Code Common: R850xx 👋 Introduction Market Position Segment: BMW's mid-size touring/roadster segment, known for comfort, versatility, and reliable Boxer engine. Competitive Analysis Competitors: Honda ST1100, Yamaha FJ1200, Moto Guzzi California. Key Features Design: Characteristic BMW Boxer twin-cylinder engine, Telelever front suspension, Paralever rear suspension, shaft drive, ABS availability. 📋 Manual Details Coverage Areas Years Covered: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Page Count Estimated Pages: Refer to product specifics, typically 300-600 pages for comprehensive manuals. Manual Type Type: Official Full Service Repair Manual Language Language: English Format Format: Digital (PDF) or Printed (as specified by seller) 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, tuning, diagnostics, and overhaul procedures. Transmission: Gearbox removal, inspection, repair, and adjustment; clutch service. Electrical System: Wiring diagrams, component testing, troubleshooting of ignition, lighting, starting, charging, and auxiliary systems. Fuel System: Fuel injection system diagnostics and repair, fuel pump, injectors, sensors, and ECU. Suspension And Steering: Front fork (Telelever) overhaul and adjustment, rear shock absorber (Paralever) service, steering head bearing maintenance, wheel alignment. Brakes: Hydraulic system service, ABS operation and diagnosis, brake pad replacement, caliper overhaul, fluid changes. Frame And Bodywork: Chassis inspection, fairing removal and installation, seat service, mounting hardware. Procedures Included Maintenance: Scheduled maintenance tasks, oil changes, filter replacements, spark plug service, brake fluid flush, coolant checks. Troubleshooting: Systematic diagnostic procedures for common and complex issues, fault code interpretation. Repair: Detailed step-by-step instructions for component repair and replacement. Rebuilds: Full engine and transmission rebuild procedures with torque specifications and clearances. Diagnostics: Engine management system diagnostics, sensor testing, ABS diagnostics. Technical Depth Level: Comprehensive, covering basic owner maintenance to advanced workshop-level repairs and diagnostics. 📊 Manual Specifications File Format Digital Quality: High-resolution, searchable PDF with clear diagrams and text. Print Quality Paper Type: Durable, laminated pages or high-quality paper stock suitable for workshop environments (if printed). Binding Type Binding: Professionally bound with lay-flat capability for ease of use in a workshop (if printed). ⚙️ Engine Specifications Primary Engine Type: Four-stroke, air-cooled flat-twin (Boxer) engine Displacement: 848 cc Bore X Stroke: 90.0 mm x 66.0 mm Compression Ratio: 9.7:1 Performance Horsepower Approx: 70 hp @ 7250 rpm Torque Approx: 77 Nm (57 lb-ft) @ 5500 rpm Fuel System Injection: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, minimum 91 RON (87 AKI) Ignition System: Digital ignition (CDI) Cooling System: Air cooling with oil cooler Valvetrain Configuration: Overhead camshaft (OHC), 2 valves per cylinder, pushrod actuated 🔧 Transmission Standard Type: 5-speed manual gearbox Final Drive: Shaft drive Clutch Type: Single dry plate, diaphragm spring Fluid Specifications Gearbox Oil: SAE 75W/90 API GL-5 transmission fluid (refer to manual for specific BMW part numbers) Features Smoothness: Known for robust and smooth shifting characteristic of BMW Boxer transmissions. 📐 Dimensions Exterior Length: Approx. 2,195 mm (86.4 in) Width Handlebars: Approx. 900 mm (35.4 in) Height Seat: Approx. 820 mm (32.3 in) (standard seat height) Weights Dry Weight: Approx. 213 kg (470 lbs) Gross Vehicle Weight Rating: Approx. 440 kg (970 lbs) Fuel Capacity: Approx. 25 Liters (6.6 US gallons), including reserve 🛡️ Safety Features Ratings ABS Availability: Optional BMW Motorrad ABS (Anti-lock Braking System) Active Features Braking System: Dual 305 mm disc front brakes with 4-piston calipers, single 285 mm disc rear brake with 2-piston caliper. ABS Functionality: When equipped, ABS provides enhanced stability and control during braking. Passive Features Chassis Stability: Telelever front suspension contributes to excellent front-end stability and feedback. 💡 Technology Features Infotainment Availability: Basic instrumentation, no advanced infotainment systems typical of modern motorcycles. Features: Analog tachometer, digital speedometer, odometer, trip meter, fuel level indicator, warning lights. Driver Assistance ABS: Optional ABS system provides anti-lock braking for increased safety. Connectivity Diagnostics Port: Diagnostic connector for engine management and ABS system readouts using specialized BMW diagnostic tools. 🔧 Maintenance Service Intervals Oil Change: Every 10,000 km (6,000 miles) or annually, whichever comes first. Valve Clearance Check: Every 20,000 km (12,000 miles). Spark Plug Replacement: Every 20,000 km (12,000 miles). Brake Fluid Flush: Every 2 years. Fluid Specifications Engine Oil: SAE 20W-50 or 15W-50 API SG/SH/SJ (refer to manual for specific BMW approvals and part numbers, e.g., BMW Motorrad Advantec) Engine Oil Capacity: Approx. 3.0 Liters (3.2 US quarts) with filter change. Brake Fluid: DOT 4 (refer to manual for specific BMW recommendations) Coolant Type: For oil-cooled engines, primarily focused on oil, but check manual for any coolant specific to oil cooler circuits or any variants. Known Issues Common Wear Items: Clutch wear, rear brake pads, wheel bearings, fuel pump relays, Telelever pivot bearings. Electrical Gremlins: Can occasionally experience issues with wiring harness integrity or component failures, particularly related to the ABS unit or ABS sensors. Fuel Injection Tuning: Periodic adjustment of throttle bodies and...