BMW R850 R850R 1998 Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: BMW Model: R850R Year: 1998 Generation R Series Generation: Second Generation (R259 Platform) Codes Chassis Code: R259 👋 Introduction Market Position Segment: Mid-size touring motorcycle,...

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标签: 1998 BMW Cars Misc Motorcycle R850 R850R

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Description

🏷️ Basic Information

Identification

Make:

Model:

R850R

Year:

Generation

R Series Generation:

Second Generation (R259 Platform)

Codes

Chassis Code:

👋 Introduction

Market Position

Segment:

Mid-size touring motorcycle, often considered an entry-point to BMW's boxer-twin platform.

Target Audience:

Riders seeking a comfortable, reliable, and capable motorcycle for touring and everyday use, with BMW's characteristic build quality and engineering.

Competitive Analysis

Key Competitors:

Moto Guzzi California, Honda VFR800, Yamaha FJR1300 (though often a larger displacement competitor).

Key Features

Engine Layout:

Air-cooled, four-stroke, two-cylinder boxer engine.

Drivetrain:

Shaft drive, known for low maintenance and smooth power delivery.

Suspension Front:

Telelever suspension, offering excellent ride quality and predictable handling.

Suspension Rear:

Monolever rear suspension with adjustable shock absorber.

Braking System:

Integral ABS II (optional/standard depending on market), providing advanced braking safety.

📋 Manual Details

Coverage Areas

Engine Coverage:

Complete engine overhaul, including disassembly, inspection, assembly, tuning, and troubleshooting.

Transmission Coverage:

Gearbox service, clutch operation, final drive maintenance, and troubleshooting.

Chassis Coverage:

Frame, suspension (front Telelever, rear Monolever), steering, wheels, and brakes.

Electrical Coverage:

Ignition system, lighting, instruments, fuel injection control unit, battery, starter, alternator, and wiring diagrams.

Bodywork Coverage:

Fairings, fuel tank, seat, fenders, and general cosmetic repairs.

Page Count

Estimated Pages:

Approximately 400-600 pages (typical for comprehensive service manuals).

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English

Format

Format:

Digital (likely PDF)

📖 Manual Coverage

Systems Covered

Engine Management:

Bosch Motronic (specific to R850R, likely 2.2 or 2.4 variant), including fuel injection, ignition timing, and idle control.

Fuel System:

Fuel tank, fuel pump, fuel filter, fuel lines, and injector system.

Exhaust System:

Catalytic converter (if applicable for the market), mufflers, and exhaust manifold maintenance.

Cooling System:

Oil cooling system, including oil cooler, oil lines, and oil filter service.

Braking System:

BMW Integral ABS II (optional on some models, standard on others), front and rear disc brakes, brake fluid replacement, and caliper service.

Suspension System:

Front Telelever system (fork, shock absorber, linkage), rear Monolever swingarm, shock absorber, and pre-load adjustment.

Wheel Tire System:

Wheel bearings, tire replacement, wheel balancing, and spoke tensioning (if applicable for spoked wheels).

Steering System:

Handlebar, steering head bearings, and alignment checks.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, spark plug checks, chain adjustment (if applicable, though shaft drive), brake fluid flushes, and air filter cleaning/replacement.

Engine Rebuild:

Top-end overhaul (cylinder head, valves), bottom-end overhaul (crankshaft, connecting rods, bearings), piston and ring replacement.

Transmission Repair:

Clutch plate replacement, gearbox component inspection and replacement, final drive oil seal replacement.

Electrical Diagnostics:

Troubleshooting common electrical faults, component testing (e.g., ignition coils, fuel injectors), and interpreting wiring diagrams.

Suspension Service:

Fork seal replacement, shock absorber servicing, linkage lubrication, and adjustment procedures.

Brake Service:

Brake pad replacement, rotor inspection, bleeding procedures (including ABS systems if equipped).

Wheel Hub Service:

Wheel bearing replacement, hub maintenance, and tire mounting/balancing.

Technical Depth

Diagnostic Procedures:

Detailed step-by-step troubleshooting guides for common and uncommon problems, including fault code interpretation (if applicable to Motronic system).

Torque Specifications:

Precise torque values for all critical fasteners, ensuring proper assembly and preventing component damage.

Component Clearances:

Specifications for valve clearances, piston-to-cylinder wall clearances, bearing clearances, etc.

Alignment Data:

Specifications for steering head angle, trail, and wheel alignment.

Wiring Diagrams:

Comprehensive, easy-to-read wiring diagrams for all electrical systems, color-coded and keyed.

Special Tools:

Listing and description of specialized tools required for specific maintenance and repair tasks.

📊 Manual Specifications

File Format

Format:

Searchable Text:

Yes (typically included in professionally produced PDFs).

Printable Pages:

Print Quality

Image Resolution:

High resolution, suitable for clear display of diagrams and photos.

Diagram Clarity:

Sharp and detailed, allowing for easy identification of components and connections.

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Air-cooled, four-stroke boxer-twin engine

Displacement:

848 cc (approx.)

Bore X Stroke:

90.0 mm x 66.0 mm (approx.)

Compression Ratio:

9.0:1 (approx.)

Valve Train:

Overhead camshaft (OHC), 2 valves per cylinder, pushrod actuated.

Performance

Horsepower:

Approximately 70-75 hp @ 7,250 rpm (specifications may vary slightly by market and tune).

Torque:

Approximately 75-80 Nm (55-59 lb-ft) @ 5,500 rpm (specifications may vary).

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI), Bosch Motronic.

Fuel Type:

Unleaded gasoline, 91-98 octane (RON).

Fuel Tank Capacity:

19 liters (5.0 US gal) including reserve.

🔧 Transmission

Standard

Type:

5-speed manual gearbox.

Optional

Type:

Not typically offered with an automatic or alternative transmission for this model.

Features

Clutch:

Single dry plate, hydraulically actuated.

Final Drive:

Shaft drive to rear wheel.

📐 Dimensions

Exterior

Length:

Approximately 2,180 mm (85.8 in).

Width:

Approximately 900 mm (35.4 in) over handlebars.

Height:

Approximately 1,330 mm (52.4 in) to top of windscreen.

Wheelbase:

Approximately 1,430 mm (56.3 in).

Seat Height:

Approximately 770 mm (30.3 in) (standard seat).

Weights

Dry Weight:

Approximately 215 kg (474 lbs).

Gross Vehicle Weight Rating:

Approximately 470 kg (1036 lbs).

🛡️ Safety Features

Ratings

Integral ABS II (available as an option or standard depending on market and specific model configuration).

Active Features

Braking Performance:

Dual front discs, single rear disc with ABS for enhanced stopping power and control.

Lighting:

Halogen headlight, multi-reflector turn signals.

Passive Features

Frame Construction:

Tubular steel frame, offering rigidity and stability.

Ergonomics:

Comfortable riding position designed for touring and long-distance comfort.

💡 Technology Features

Infotainment

Instrumentation:

Analog tachometer, digital speedometer, fuel gauge, gear indicator, clock, engine temperature warning light, and other diagnostic indicators.

Driver Assistance

Integral ABS II provides anti-lock braking for both wheels, enhancing safety under braking.

Connectivity

Diagnostics Port:

On-board diagnostics capabilities through the Motronic system, accessible via specialized tools.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10,000 km (6,000 miles) or annually, whichever comes first.

Major Service Interval:

Typically every 20,000 km (12,000 miles), including valve adjustment, throttle body sync, and brake fluid flush.

Spark Plug Replacement:

Check every 10,000 km, replace as needed or at 20,000 km intervals.

Fluid Specifications

Engine Oil Type:

SAE 20W-50 or SAE 15W-50 API SG or higher, conforming to BMW Motorrad specifications.

Engine Oil Capacity:

Approximately 3.0 liters (3.2 US quarts) with oil filter change.

Brake Fluid Type:

DOT 4 hydraulic brake fluid.

Final Drive Oil Type:

Hypoid gear oil, SAE 80W-90 API GL-5.

Final Drive Oil Capacity:

Approximately 0.25 liters (0.26 US quarts).

Known Issues

Electrical Connectors:

Corrosion or poor contact in electrical connectors, particularly around the alternator and main harness.

Fuel Injector Cleaning:

Periodic cleaning or testing of fuel injectors may be required to maintain optimal performance.

Throttle Body Sync:

Out-of-sync throttle bodies can lead to rough idling or uneven power delivery; regular synchronization is crucial.

Telelever Pivot Bearings:

Wear in the pivot bearings of the Telelever system can affect steering and handling; lubrication and inspection are important.

Clutch Actuator Seal:

Potential for leaks from the clutch slave cylinder seal.

📚 Vehicle History

Brand Heritage

Heritage:

BMW Motorrad boasts a long and rich history in motorcycle design and engineering, particularly known for its boxer engines and robust touring capabilities.

Model Evolution

R Series Development:

The R850R is part of the R-series boxer lineage, representing a slightly detuned and more accessible version of the popular R1100/R1150 models, emphasizing comfort and practicality.

R259 Platform:

This model utilizes the R259 platform, which introduced the Telelever front suspension and the modular engine design, evolving from earlier airhead models.

Production

Production Period:

The R850R was produced from the mid-1990s into the early 2000s, with the 1998 model year being a key iteration.

Manufacturing Location:

Germany (Berlin-Spandau plant).

🏆 Awards & Recognition

Recognitions

General Reputation:

The R850R is generally recognized for its reliability, comfortable ride, and the quality associated with BMW motorcycles, making it a popular choice for touring and commuting.

Ratings

Customer Satisfaction:

Consistently receives positive feedback for its build quality, engine durability, and comfortable ergonomics from owners.

Certifications

Emissions Compliance:

Meets relevant emissions standards for its production era, often with catalytic converters depending on market destination.