BMW R850 R850C 1997 Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: BMW Model: R850 Model Variant: R850C Year: 1997 Codes Product Sku: BMW-R850R850C-1997-SM 👋 Introduction Market Position Class: Mid-size touring motorcycle. Target Audience: Owners seeking to...

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类型: Motorcycle

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标签: 1997 BMW Cars Misc Motorcycle R850 R850C

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Description

🏷️ Basic Information

Identification

Make:

Model:

Model Variant:

R850C

Year:

Codes

Product Sku:

BMW-R850R850C-1997-SM

👋 Introduction

Market Position

Class:

Mid-size touring motorcycle.

Target Audience:

Owners seeking to perform maintenance and repairs, independent workshops, and motorcycle enthusiasts.

Competitive Analysis

Competitors 1997:

Honda Shadow series, Kawasaki Vulcan series, Yamaha Virago series, Moto Guzzi California series.

Key Features Vehicle

Engine Layout:

Air-cooled, two-cylinder boxer engine.

Drive Type:

Shaft drive.

ABS Availability:

Optional Integral ABS system, a significant safety feature for its era.

Manual Value Proposition

Value For Owner:

Enables owners to maintain their vehicle to BMW standards, saving money on labor costs and ensuring longevity.

Value For Workshop:

Provides accurate and efficient repair procedures, reducing diagnostic time and improving customer satisfaction.

📋 Manual Details

Coverage Areas

Engine:

Transmission:

Chassis:

Electrical System:

Fuel System:

Brakes:

Suspension:

Cooling System:

Exhaust System:

Bodywork:

Troubleshooting:

Maintenance Schedules:

Page Count

Approximate Pages:

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed information on engine teardown, assembly, component specifications, and tolerances for the R850 boxer twin engine.

Engine Management:

Covers fuel injection (Motronic), ignition system, sensors, actuators, and troubleshooting diagnostic codes.

Transmission Gearbox:

Comprehensive instructions for gearbox removal, disassembly, inspection, repair, and reassembly, including clutch service.

Final Drive:

Specific procedures for maintenance and repair of the shaft drive and final drive unit.

Brakes System:

Detailed coverage of the BMW Integral ABS system (if equipped), brake fluid specifications, caliper maintenance, rotor replacement, and bleeding procedures.

Suspension And Steering:

Includes front fork (telescopic) and rear shock absorber maintenance, adjustment, and replacement. Covers steering head bearing service.

Electrical And Ignition:

Wiring diagrams, component locations, troubleshooting guides for lighting, ignition, charging system (alternator, regulator), starter, and battery.

Fuel And Exhaust:

Fuel tank, fuel pump, fuel filter, injectors, and exhaust system components.

Frame And Bodywork:

Instructions for body panel removal, fairing, seat, and frame component inspection.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, spark plug checks, valve clearance adjustments, drive shaft lubrication, and brake pad inspection.

Major Overhaul:

Complete engine and transmission rebuild procedures, including torque specifications for critical fasteners.

Troubleshooting Diagnostics:

Systematic diagnostic procedures for common running issues, electrical faults, and performance problems.

Component Replacement:

Step-by-step guides for replacing wear items and major components such as clutch plates, wheel bearings, and brake lines.

Tune Up Procedures:

Detailed instructions for tune-ups, including fuel mixture adjustments (if applicable) and ignition timing checks.

Technical Depth

Depth:

Comprehensive: Covers everything from basic owner maintenance to full engine and transmission rebuilds.

Detail Level:

Mechanic-grade: Utilizes precise measurements, torque values, and diagnostic procedures as used by professional BMW technicians.

📊 Manual Specifications

File Format

Format:

PDF (Portable Document Format)

Searchable:

Yes, text-searchable for quick information retrieval.

Print Quality

Resolution:

High-resolution scans ensuring clarity of diagrams and text.

Diagrams:

Includes clear, detailed exploded diagrams, schematics, and illustrations.

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 (51.7 cu in)

Bore X Stroke:

90.0 mm x 66.0 mm (3.54 in x 2.60 in)

Compression Ratio:

10.0:1

Valve Train:

2 valves per cylinder, overhead camshaft (OHC) driven by pushrods.

Performance

Horsepower:

Approximately 70 hp (52 kW) at 7,500 rpm (varies slightly by market/configuration)

Torque:

Approximately 77 Nm (57 lb-ft) at 5,500 rpm (varies slightly by market/configuration)

Fuel System

Fuel Delivery:

Bosch Motronic 2.2 Fuel Injection (EFI).

Fuel Type:

Unleaded gasoline (91-98 RON recommended).

Lubrication

Oil Type:

SAE 20W-50 or 20W-40 motorcycle specific oil. (Refer to manual for exact BMW specification).

Oil Capacity:

Approx. 3.0 liters (3.2 US quarts) with filter change.

Ignition

Ignition System:

Electronic ignition (Motronic).

Spark Plugs:

Champion RA 4 HC or NGK CR 9 E (Check manual for precise application).

🔧 Transmission

Standard

Transmission Type:

5-speed manual gearbox.

Features

Clutch Type:

Single dry plate clutch, cable operated.

Final Drive Type:

Shaft drive with universal joint.

Fluid Type

Gearbox Oil:

SAE 75W/90 GL-5 hypoid gear oil. (Refer to manual for exact BMW specification).

Fluid Capacity

Gearbox Oil Capacity:

Approx. 0.25 liters (0.26 US quarts).

📐 Dimensions

Exterior

Length:

Approx. 2,225 mm (87.6 in)

Width:

Approx. 925 mm (36.4 in) (including mirrors)

Height:

Approx. 1,295 mm (51.0 in) (seat height)

Weights

Dry Weight:

Approx. 220 kg (485 lbs)

Gross Vehicle Weight Rating:

Approx. 450 kg (992 lbs)

Fuel Tank Capacity:

19.5 liters (5.2 US gallons), including 3.5 liters reserve.

🛡️ Safety Features

Ratings

Safety Standards:

Designed to meet prevailing European safety standards for motorcycles of the era.

Active Features

Braking System:

Dual 305 mm (12.0 in) discs with 4-piston calipers front, 276 mm (10.9 in) disc with 2-piston caliper rear. Optional Integral ABS.

Lighting:

Halogen headlight, integrated turn signals.

Passive Features

Frame Construction:

Steel tubular frame for rigidity and rider protection.

💡 Technology Features

Infotainment

Infotainment System:

N/A (1997 motorcycle technology focus is on function and reliability, not infotainment).

Driver Assistance

ABS System:

Optional BMW Integral Anti-lock Braking System (ABS) for enhanced safety.

Connectivity

Connectivity Features:

N/A (No modern connectivity features).

Engine Control

Engine Management Unit:

Bosch Motronic 2.2 ECU controls fuel injection and ignition timing for optimal performance and emissions.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10,000 km (6,000 miles) or annually, whichever comes first. (Consult manual for specific interval and oil type).

Valve Clearance Interval:

Every 20,000 km (12,000 miles).

Spark Plug Replacement:

Every 20,000 km (12,000 miles).

Brake Fluid Change:

Every 2 years.

Drive Shaft Lubrication:

Every 20,000 km (12,000 miles) or as specified.

Fluid Specifications

Engine Oil Spec:

BMW Motorrad Approved 20W-50 or 20W-40 motorcycle oil (API SG/SH or higher).

Brake Fluid Spec:

DOT 4 brake fluid.

Known Issues

Common Wear Items:

Clutch wear, wheel bearings, brake caliper seals, and potential for ABS sensor issues.

Fuel Pump Reliability:

Early models may have had some fuel pump reliability concerns, addressable with proper maintenance.

Electrical Connections:

Corrosion in electrical connectors can lead to intermittent issues; manual guides inspection and cleaning.

📚 Vehicle History

Brand Heritage

Bmw Motorcycles:

BMW Motorrad has a long history dating back to the 1920s, renowned for engineering excellence, shaft drive, and boxer engines.

Model Evolution

R850 Lineage:

The R850 series, introduced in the mid-1990s, offered a more accessible displacement within the BMW boxer lineup, derived from the larger R1100 models, with the R850C representing the cruiser-styled variant.

Production

Production Period:

The R850C model was produced primarily from 1997 to 2004.

Manufacturing Plant:

Berlin-Spandau, Germany.

🏆 Awards & Recognition

Recognitions

Awards:

While specific awards for the R850C may not be widely publicized, BMW motorcycles of this era were generally well-regarded for their build quality, touring comfort, and engineering.

Ratings

Reliability Reputation:

BMW boxer twins are known for their robust construction and longevity when properly maintained. The 850cc variant offers a balance of performance and ease of use.

Certifications

Certification Standards:

Compliant with relevant automotive and motorcycle emissions and safety standards of the time.