🏷️ Basic Information Identification Make: BMW Model: R850R Year: 1999 Product Type: Workshop Repair Service Manual Engine Configuration: Flat-twin (Boxer) engine Chassis Code: R850R (Type 259) 👋 Introduction Market Position Motorcycle Segment: Mid-size touring/roadster motorcycle, known for comfort, reliability, and BMW's boxer engine heritage. Competitive Analysis Key Competitors: Other mid-size touring bikes of the era from manufacturers like Honda (ST1100), Yamaha (Diversion/Diversion XJ900S), Kawasaki (GTR1000), and possibly Harley-Davidson Sportster models for a different market segment. Key Features Powertrain: Characterized by its air/oil-cooled boxer-twin engine, providing a unique riding experience and low center of gravity. Handling And Suspension: Utilizes BMW's proprietary Telelever front suspension and Paralever rear suspension for superior ride quality and handling. Target Audience: Touring riders, commuters, and those seeking a comfortable and reliable machine for both short and long distances. 📋 Manual Details Coverage Areas General Coverage: All Models/Engines/Trim/Transmission Types Page Count Estimated Page Count: 300-500 (typical for comprehensive workshop manuals of this era) Manual Type Manual Type: Workshop Repair Service Manual Language Language: English (assumed for typical market distribution) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine System: Detailed disassembly, assembly, inspection, and repair of the R850cc boxer engine, including cylinder heads, pistons, crankshaft, camshafts, valves, timing chain, oil pump, lubrication system, and cooling system. Fuel System: Fuel injection system (Bosch Motronic), fuel pump, fuel injectors, throttle body, fuel lines, and fuel tank maintenance and troubleshooting. Ignition System: Ignition control unit (ECU), spark plugs, ignition coils, and wiring. Transmission System: Clutch assembly, gearbox disassembly and assembly, gear selection mechanism, and final drive unit (including driveshaft and universal joint). Chassis Suspension: Front fork (BMW Telelever) overhaul, rear shock absorber (BMW Paralever) inspection and replacement, swingarm, wheel bearings, and steering head bearings. Brake System: Front and rear brake systems, including ABS (Anti-lock Braking System) components, master cylinders, calipers, brake lines, brake pads, and brake fluid bleeding procedures. Electrical System: Wiring diagrams, battery, alternator, starter motor, lighting system (headlight, taillight, indicators), horn, instrument cluster, and electronic control units. Bodywork And Frame: Frame inspection, body panels removal and installation, seat, fuel tank, fairing (if equipped), and luggage rack. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, brake pad inspection and replacement, chain/driveshaft lubrication and adjustment, tire pressure checks. Troubleshooting Diagnostics: Step-by-step diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable), electrical system diagnostics, and engine performance problems. Major Repairs: Complete engine rebuilds, gearbox overhauls, suspension component replacements, brake system overhauls, and electrical system repairs. Special Tool Requirements: Identification of specific BMW special tools required for certain procedures, with potential illustrations or descriptions. Technical Depth Diagnostic Procedures: Comprehensive diagnostic flowcharts and symptom-based troubleshooting guides. Rebuild Specifications: Detailed torque specifications, clearances, wear limits, and assembly instructions for all major components. Wiring Diagrams: High-quality, schematic wiring diagrams for all electrical systems, often color-coded for clarity. Schematics And Illustrations: Exploded views, diagrams, and illustrations to aid in part identification and assembly/disassembly processes. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Likely text-searchable (OCR'd or native text PDF) for efficient information retrieval. Print Quality Print Quality: High-resolution scans or digital creation, suitable for printing and viewing on various devices. Binding Type Binding Type: Not applicable (Digital Download - PDF) Paper Type Paper Type: Not applicable (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Air/oil-cooled, four-stroke, flat-twin (boxer) engine Displacement: 848 cc (cubic centimeters) Bore X Stroke: 90.0 mm x 66.0 mm Compression Ratio: 10.0:1 (typical for this model) Valve Train: Overhead camshaft (OHC), 2 valves per cylinder Performance Horsepower: Approx. 70-75 HP (51-55 kW) at 7500 rpm (exact figure may vary slightly by region and specific tuning) Torque: Approx. 75-80 Nm (55-59 lb-ft) at 5500 rpm (exact figure may vary) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Bosch Motronic system Fuel Type: Unleaded gasoline, minimum 91 octane (RON/MON) recommended 🔧 Transmission Standard Gearbox: 5-speed manual transmission Clutch: Single dry plate, diaphragm spring clutch Final Drive: Shaft drive with universal joint Features Gear Ratios: Specific gear ratios will be detailed within the manual, crucial for performance tuning and diagnostics. Gearbox Oil Type: Manual Transmission Fluid (MTF) - specific BMW recommendation will be in manual (typically SAE 75W-90 GL-5) 📐 Dimensions Exterior Length: Approx. 2170 mm (85.4 in) Width: Approx. 850 mm (33.5 in) at handlebars Height: Approx. 1350 mm (53.1 in) (seat height variable) Weights Dry Weight: Approx. 215 kg (474 lbs) Gross Vehicle Weight: Approx. 430 kg (948 lbs) Fuel Tank Capacity: 19.0 Liters (5.0 US gal) including reserve 🛡️ Safety Features Ratings ABS: Optional ABS (Anti-lock Braking System) often available for this model, enhancing braking safety. Active Features Braking System: Dual front disc brakes, single rear disc brake. ABS availability is a key safety feature. Passive Features Chassis Design: Low center of gravity from the...