🏷️ Basic Information Identification Make: BMW Model: R 850 GS Model Designation: R850GS Family: R Series Type: Dual-Sport Motorcycle Product Type: Service Repair Manual Product Name: BMW R 850 GS 1999-2001 Service Repair Manual Codes Chassis Code Range: 259 👋 Introduction Market Position Segment: Adventure Touring / Dual-Sport Motorcycle Target Audience: Owners and independent workshops seeking to perform maintenance and repairs on the BMW R 850 GS. Competitive Analysis Competitors: Honda Africa Twin (older generations), Yamaha Ténéré, Suzuki V-Strom (earlier models), Kawasaki KLR. Differentiation: BMW's signature boxer twin engine, shaft drive, robust build quality, and touring capabilities differentiate it. Key Features Vehicle Highlights: Torquey boxer twin engine, shaft drive for low maintenance, comfortable ergonomics for long-distance travel, capable on varied terrain. Manual Benefit: Empowers owners to maintain their motorcycle, saving on dealership costs and ensuring proper upkeep for longevity. 📋 Manual Details Coverage Areas Years Covered: 1999, 2000, 2001 Engine Variants Covered: 848cc (R850GS) Page Count Estimated Page Count: Extensive (specific count not provided, but described as comprehensive) Manual Type Manual Type: Service and Repair Manual Content Focus: Maintenance, troubleshooting, repair, and diagnostics Language Language: English Format Format: Digital (likely PDF, inferred from typical sales of such manuals) Format Details: Searchable text, printable pages 📖 Manual Coverage Systems Covered Engine: Complete overhaul, internal components, lubrication, cooling, fuel injection, ignition, exhaust Transmission: Gearbox service, clutch operation, final drive (Paralever system), lubrication Chassis And Suspension: Frame inspection, front fork (Telelever or traditional depending on specific R850GS model variant if any, though R850GS typically uses conventional forks), rear monoshock, Paralever rear suspension Brakes: Hydraulic brake system (front and rear), ABS (if equipped), brake pad replacement, caliper service, brake fluid flush Electrical System: Battery, charging system (alternator/stator, regulator/rectifier), starter motor, lighting (headlight, taillight, indicators), instrumentation, wiring diagrams, fuses, relays Fuel System: Fuel tank, fuel pump, fuel filter, fuel injectors, throttle body, idle control Bodywork And Trim: Fairing removal and installation, seat, fuel tank cover, fenders, luggage systems (if applicable) Wheels And Tires: Wheel bearing service, tire replacement, wheel balancing, spoke tensioning (if applicable) Procedures Included Maintenance: Oil change, filter replacement, spark plug service, air filter cleaning/replacement, brake fluid change, coolant flush (if liquid-cooled variant), valve clearance adjustment, drive shaft lubrication Troubleshooting: Diagnostic procedures for common faults, fault codes (if applicable), symptom-based troubleshooting guides Repair: Component removal, disassembly, inspection, repair, and reassembly for all major systems Diagnostics: Engine performance analysis, electrical system checks, ABS diagnostics (if equipped) Calibration And Adjustment: Throttle position sensor (TPS) adjustment, idle speed adjustment, ignition timing checks (if adjustable) Technical Depth Depth: Comprehensive from basic owner maintenance to advanced mechanical and electrical repairs, including full engine and transmission rebuilds. Detail Level: Step-by-step instructions, torque specifications, wiring diagrams, exploded views, diagnostic flowcharts. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Full text searchable for quick information retrieval. Printability: Printable pages for workshop use. Print Quality Visuals: High-resolution images, clear diagrams, and exploded views. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Air/Oil-cooled, four-stroke, boxer-twin cylinder Displacement: 848 cc (cubic centimeters) Bore X Stroke: 87.4 mm x 70.5 mm Compression Ratio: 10.0:1 Valve Train: Two valves per cylinder, pushrod actuated with rockers Performance Horsepower: Approx. 70 hp (52 kW) at 6,750 rpm (European spec) Torque: Approx. 55 lb-ft (75 Nm) at 5,250 rpm (European spec) Fuel System Fuel Delivery: Bosch Motronic MA 2.4 Fuel Injection (Multi-point injection) Fuel Type: Unleaded gasoline, minimum 91 RON (87 AKI) Fuel Tank Capacity: Approx. 25 liters (6.6 US gallons) Lubrication Oil Type: API SG or higher, SAE 20W-50 motorcycle specific oil recommended (check manual for precise BMW recommendation) Oil Capacity With Filter: Approx. 3.0 liters (3.2 US quarts) Ignition Ignition System: Electronic ignition (Digital) Exhaust Exhaust System: Two into one catalytic converter system 🔧 Transmission Standard Type: 6-speed manual gearbox Clutch: Single dry plate, hydraulically actuated Final Drive: Shaft drive via BMW Paralever system Features Gear Ratios: Specific gear ratios available in the manual. Typically geared for strong mid-range torque and touring. Final Drive Ratio: Typically 32:11 (2.91:1) Lubrication Gearbox Oil Type: SAE 75W-90 API GL-5 (check manual for specific BMW spec) Gearbox Oil Capacity: Approx. 0.9 liters (0.95 US quarts) Final Drive Oil Type: SAE 75W-140 API GL-5 (check manual for specific BMW spec) Final Drive Oil Capacity: Approx. 0.18 liters (0.19 US quarts) 📐 Dimensions Exterior Length: Approx. 2,200 mm (86.6 in) Width: Approx. 920 mm (36.2 in) Height: Approx. 1,400 mm (55.1 in) to seat height Wheelbase: Approx. 1,430 mm (56.3 in) Weights Dry Weight: Approx. 210 kg (463 lbs) Wet Weight: Approx. 230 kg (507 lbs) (with all fluids) Gross Vehicle Weight Rating: Not explicitly specified but typically around 450 kg (992 lbs). Wheels And Tires Front Tire Size: 110/80 R 19 M/C 59V Rear Tire Size: 130/80...