🏷️ Basic Information Identification Make: BMW Model: R850R / R850GS Year: 1999 Codes Engine Code Family: M254 Chassis Code: R259 (variants) 👋 Introduction Market Position Segment: Mid-size touring/sport-touring motorcycle Competitive Analysis Competitors 1999: Honda VFR750F, Kawasaki GTR1000, Yamaha FJR1300 (later models), Moto Guzzi California Key Features Engine Layout: Air-cooled, flat-twin (Boxer) Drive System: Shaft drive Suspension: Telelever front, Paralever rear Handling Characteristics: Known for stable handling, comfortable ride, and predictable feedback. Manual Purpose: Essential for owners and technicians seeking accurate maintenance, repair, and troubleshooting guidance for the BMW R850R and R850GS. 📋 Manual Details Coverage Areas Markets Covered: Global (All models/engines/trim/transmissions typ.) Page Count Estimated Pages: 300-500 (typical for comprehensive workshop manuals) Manual Type Type: Workshop Repair Service Manual Language Language: English (standard for professional documentation) Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Exhaust System, Transmission, Drive Shaft Chassis: Frame, Front Suspension (Telelever), Rear Suspension (Paralever), Wheels, Tires, Brakes (ABS available), Steering Electrical: Battery, Charging System, Lighting, Instrumentation, Ignition, Fuel Injection Control, ABS Control Module, Starter Motor, Horn, Switches, Wiring Diagrams Bodywork: Fairings, Seat, Fuel Tank, Fenders, Luggage Systems (if applicable), Handlebars, Footpegs Procedures Included Maintenance: Routine Service (oil change, filter replacement, spark plug replacement, valve clearance checks), Lubrication Schedule, Tire Pressure Monitoring Troubleshooting: Diagnostic Flowcharts, Fault Code Interpretation (if applicable), Common Problems and Solutions Repair: Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake System Servicing, Electrical Component Diagnosis and Replacement Special Tools: Identification of required BMW special tools for specific procedures Technical Depth Depth: Comprehensive, covering from basic maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with clear diagrams and text. Print Quality Printability: Designed for clear printing of all pages, including technical illustrations and schematics. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, air-cooled, flat-twin (Boxer) Displacement: 848 cc Bore X Stroke: 90.0 mm x 66.0 mm Compression Ratio: 10.0:1 Performance Horsepower: 70 hp @ 6,750 rpm Torque: 77 Nm (57 lb-ft) @ 5,000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (Bosch Motronic 2.2 or similar) Fuel Type: Unleaded gasoline, minimum 95 RON (91 AKI) Ignition System Ignition: Digital Electronic Ignition (CDI) Lubrication Oil Capacity W Filter: Approx. 3.5 Liters (3.7 US qt) Recommended Oil: SAE 20W-40 or 20W-50 motorcycle specific oil (check manual for exact BMW recommendation) 🔧 Transmission Standard Type: 5-speed manual transmission Optional Optional Gearbox: N/A (Standard 5-speed) Features Clutch: Single dry plate clutch, hydraulically operated Final Drive: Shaft drive with universal joint and final drive unit Fluid Specifications Final Drive Oil: SAE 90 Hypoid Gear Oil (API GL-5) 📐 Dimensions Exterior Length Approx: 2,190 mm (86.2 in) Width At Handlebars Approx: 920 mm (36.2 in) Height At Seat Approx: 1,230 mm (48.4 in) Weights Dry Weight Approx: 208 kg (458.5 lbs) Wet Weight Approx: 227 kg (500.4 lbs) Gross Vehicle Weight Rating Gvwr: 420 kg (926 lbs) Fuel Capacity Fuel Tank Capacity: 25 Liters (6.6 US gal), including reserve 🛡️ Safety Features Ratings ABS Availability: Optional ABS (Anti-lock Braking System) available on some models. Active Features Braking System Front: Dual 305 mm discs with 4-piston calipers Braking System Rear: Single 276 mm disc with 2-piston caliper Passive Features Lighting: Halogen headlight, LED taillight (check specific model variant) Chassis Stability: Integral to the Telelever and Paralever suspension systems providing inherent stability. 💡 Technology Features Infotainment Instrumentation: Analog speedometer, tachometer, fuel gauge, gear indicator, warning lights. Driver Assistance ABS: Optional ABS system significantly enhances braking safety. Connectivity Connectivity Features: N/A (Standard for the era) 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 km (6,000 miles) or annually, whichever comes first. Valve Clearance Interval: Every 20,000 km (12,000 miles). Air Filter Inspection: Every 10,000 km (6,000 miles). Spark Plug Replacement: Every 20,000 km (12,000 miles). Fluid Specifications Brake Fluid: DOT 4 (per manual specification) Coolant: N/A (Air-cooled engine) Known Issues Fuel Pump: Occasional fuel pump failures reported; manual provides diagnostic steps. Electrical Connections: Corrosion at electrical connectors can cause intermittent issues; manual details wiring diagrams for tracing. Clutch Slave Cylinder: Leaking clutch slave cylinder seals are a known potential issue; manual details replacement procedure. Hall Sender Unit: Failure of the Hall sender unit can cause starting or running problems; manual outlines testing methods. 📚 Vehicle History Brand Heritage Bmw Motorrad Legacy: BMW Motorrad, founded in 1916, has a long history of producing innovative and reliable motorcycles, particularly known for its boxer engines and shaft drive systems. Model Evolution R850 Lineage: The R850R and R850GS are part of BMW's long-running R series of boxer-twin motorcycles, offering a more accessible displacement than the larger R1100/R1150 models. Production Production Period R850R: Introduced in 1994, R850R produced until 2006. Production Period R850Gs:...