Market Position:
A crucial resource for owners of the 1998 BMW R850GS and R850R models seeking authentic, factory-level repair and maintenance information. Positions itself as an indispensable tool for DIY mechanics and cost-conscious owners looking to reduce labor costs.
Target Audience:
BMW R850GS and R850R owners, independent motorcycle mechanics, and enthusiasts who prefer to perform their own maintenance and repairs.
Competitive Analysis:
Distinguishes itself from 3rd party manuals by being an 'Actual Genuine Repair Service Factory Manual'. Emphasizes its completeness and the depth of information derived from factory technicians, offering a significant advantage over generic repair guides.
Key Features:
Official factory content, comprehensive coverage of all styles, step-by-step instructions, detailed illustrations and diagrams, advanced troubleshooting, electrical system diagnostics with wiring diagrams, printable format, cost savings on labor.
Search Functionality:
PDF format allows for easy searching of specific terms and procedures, enhancing user efficiency.
Systems Covered:
General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix.
Electrical System Details:
Detailed coverage of wiring diagrams, component testing, troubleshooting of electrical faults, starter system, ignition system, lighting, and charging system.
Fuel System Details:
Fuel tank removal and installation, fuel pump and filter servicing, injector diagnostics and replacement, throttle body synchronization, and ECU management.
Steering System Details:
Steering head bearing inspection and adjustment, handlebar mounting and replacement, control cable routing and adjustment.
Procedures Included:
Maintenance, troubleshooting, repair, rebuilding, refurbishing, restoration, engine fault diagnosis, part testing, wiring diagram tracing, engine management system analysis, common fixes, pre-emptive maintenance tips.
Engine Repair Procedures:
Complete engine overhaul procedures, including cylinder head removal and installation, piston and connecting rod service, crankshaft and bearing replacement, camshaft timing, and lubrication system overhaul.
Suspension Service:
Front fork (BMW Telelever system) and rear shock absorber servicing, adjustments, and replacement procedures. Includes seal replacement and oil changes.
Wheel And Tire Service:
Wheel bearing replacement, tire mounting and balancing, rim inspection, spoke tensioning (if applicable to specific wheel type), and bolt torque specifications.
Technical Depth:
Complete official factory repair information. Guides through fundamentals, step-by-step procedures, advanced troubleshooting, and detailed diagnostic and repair procedures for professional technicians and owners. Includes detailed substeps, notes, cautions, warnings, numbered instructions, and illustrations.
Diagnostic Techniques:
Provides 'secret techniques used by top mechanics' for diagnosing faults, allowing users to identify problems accurately and efficiently.
Troubleshooting Guide:
Advanced troubleshooting guide to help diagnose and correct any problem, including engine performance issues, electrical gremlins, and mechanical failures.
Compatibility:
Compatible with all PC-based Windows operating systems and Mac. Requires Adobe PDF Reader.
Print Quality:
High resolution, fully printable (individual pages, chapters, or entire manual).
Printability:
Printable without any restriction, allowing users to print only what they need or the entire document for a physical reference.
Binding Type:
Digital Download (Printable)
Paper Type:
N/A (Digital - user prints on their preferred paper type)
Primary Engine:
BMW Boxer Twin Cylinder, Air-Cooled (typically 848cc for the R850 series)
Engine Type:
Four-stroke Boxer Twin
Horsepower:
Approximately 70-75 hp (specific figures vary slightly by model and tuning)
Torque:
Approximately 75-80 Nm (specific figures vary slightly by model and tuning)
Bore X Stroke:
Approximately 90.0 mm x 81.0 mm (specifics in manual)
Fuel System:
Fuel Injection (Bosch Motronic often utilized)
Engine Lubrication System
Engine Lubrication System:
Wet sump lubrication system with oil filter.
Wheelbase:
Approximately 1430 mm (R850R) to 1455 mm (R850GS) - specific figures to be confirmed in manual.
Seat Height:
Varies by model (R850R lower, R850GS higher), manual will provide specific dimensions.
Dry Weight:
Approximately 195 kg (R850R) to 213 kg (R850GS) - specific figures to be confirmed in manual.
Gross Vehicle Weight Rating:
Typically around 370-390 kg - specific figures to be confirmed in manual.
Fuel Capacity:
Approximately 20 liters (R850GS) and 19 liters (R850R) - specific figures in manual.
Safety Ratings:
Not applicable in the context of crash test ratings for motorcycles. Safety features and best practices detailed in manual.
Active Features:
Linked ABS II (optional on R850R, standard on R850GS), effective braking system, stable chassis dynamics.
Braking System Front:
Dual disc brakes with caliper actuation. ABS optional/standard.
Braking System Rear:
Single disc brake with caliper actuation. ABS optional/standard.
Passive Features:
Robust frame construction, rider ergonomics for control, durable componentry.
Infotainment:
Basic instrumentation typical for the era, focusing on essential rider information like speed, RPM, fuel level, and warning lights. No advanced infotainment systems.
Instrumentation Features:
Analog tachometer and speedometer, LCD multi-function display for fuel level, odometer, trip meter, clock, and warning lights.
Driver Assistance:
Optional ABS II braking system on R850R, standard on R850GS. No other electronic driver assistance systems.
Connectivity:
No integrated connectivity features typical of modern motorcycles.
Service Intervals:
Typical intervals include oil changes every 10,000 km, valve clearance checks and adjustments every 20,000 km, and major service at similar intervals. Specific intervals detailed in manual.
Brake Fluid Change Interval:
Typically recommended every 2 years or as per BMW's service schedule, detailed in manual.
Engine Oil Type:
SAE 20W-50 Motorcycle Oil (or as specified in the manual based on temperature range).
Transmission Oil Type:
SAE 75W-90 Gear Oil (or as specified in the manual).
Brake Fluid Type:
DOT 4 (for hydraulic systems).
Coolant Type:
Not applicable as the R850 series primarily uses air-cooling for the engine cylinders, though oil cooling is present.
Final Drive Oil Type:
SAE 90 Gear Oil or equivalent, specific viscosity and capacity detailed in manual.
Common Issues:
Potential for clutch slave cylinder leaks, alternator drive belt wear, paralever seal leaks, and fuel pump relay issues. The manual will provide diagnostic steps for these and other common concerns.
Electrical System Considerations:
Loose connections in the starter solenoid and alternator wiring can cause starting issues. Manual provides diagnostic steps.
Brand Heritage:
BMW Motorrad, renowned for engineering excellence, durability, and touring capability in motorcycles since the early 20th century.
Model Evolution:
The R850 series was a derivative of the larger R1100 models, offering a more accessible entry point into BMW's Boxer-engined touring and adventure range. The R850GS specifically adapted the GS (Gelände/Straße - terrain/road) concept to a smaller displacement.
Production Years:
The R850 series, including the R850GS and R850R, was primarily produced from 1996 to 2007.
