BMW R80 1987 Repair Service Manual

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🏷️ Basic Information Identification Make: BMW Model: R80 Year: 1987 Codes Model Designation: R80 Series (e.g., R80/7, R80GS, R80ST) 👋 Introduction Market Position Market Segment: Touring and general-purpose motorcycle market....

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类型: Motorcycle

斯库: 602671

标签: 1987 BMW Motorcycle Motorcycles R Series R80

产品多属性

Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Codes

Model Designation:

R80 Series (e.g., R80/7, R80GS, R80ST)

👋 Introduction

Market Position

Market Segment:

Touring and general-purpose motorcycle market.

Brand Heritage:

BMW Motorrad's reputation for robust engineering, reliability, and shaft-driven boxer twins.

Competitive Analysis

Competitors:

Models from Honda (e.g., CX500/650), Yamaha, Moto Guzzi, and other European manufacturers of similar displacement.

Key Features

Vehicle Appeal:

Torque-rich boxer engine, shaft drive, comfortable ergonomics, touring capability, enduring build quality.

Manual Value

Value Proposition:

Essential for maintaining and repairing the classic BMW R80, preserving its longevity and performance.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive repair, maintenance, and troubleshooting for the BMW R80 motorcycle.

Secondary Coverage:

Includes specifications, diagrams, and diagnostic procedures for all major systems.

Page Count

Page Count:

Approximately 300-400 pages (typical for this era's comprehensive manuals)

Manual Type

Manual Type:

Factory Authorized Service Manual / Repair Manual

Language

Language:

English

Format

Format:

Printed Manual

📖 Manual Coverage

Systems Covered

Engine:

Complete overhaul, tuning, carburetor adjustment (Bing 32mm typically), ignition system, lubrication, cooling (air-cooled).

Transmission:

Gearbox disassembly, assembly, clutch operation, lubrication, troubleshooting.

Drivetrain:

Final drive (shaft drive) inspection, maintenance, lubrication, universal joint service.

Brakes:

Hydraulic brake system (front and rear disc, rear drum on some models), caliper overhaul, master cylinder service, fluid replacement, bleeding procedures.

Suspension:

Front fork (e.g., Telelever or traditional telescopic depending on R80 variant) disassembly, seal replacement, oil levels, rear shock absorber adjustment and replacement.

Electrical System:

Wiring diagrams, battery maintenance, charging system (alternator/generator), starter motor, lighting, ignition coil, troubleshooting electrical faults.

Fuel System:

Fuel tank, fuel lines, fuel pump (if applicable), carburetor specifications and service.

Exhaust System:

Exhaust pipe and muffler inspection, gasket replacement.

Chassis And Frame:

Frame inspection, mounting points, side stand, center stand.

Bodywork:

Fenders, fairings (if applicable), seat, fuel tank removal and installation.

Procedures Included

Maintenance:

Oil changes, filter replacement, spark plug replacement, chain adjustment (if applicable for some models), brake pad inspection, fluid level checks.

Troubleshooting:

Diagnostic flowcharts, common problems and solutions for engine, electrical, and mechanical issues.

Repair:

Step-by-step instructions for component disassembly, overhaul, and reassembly.

Adjustments:

Carburetor synchronization, ignition timing, valve clearance, clutch cable, brake levers.

Diagnostics:

Fault finding guides, electrical schematic interpretation, basic engine testing.

Technical Depth

Depth Level:

Comprehensive (from basic maintenance to complete engine and gearbox rebuilds).

Detail Level:

Detailed torque specifications, clearance measurements, and overhaul procedures.

Diagrams Illustrations:

Includes exploded view diagrams, wiring schematics, and repair illustrations.

📊 Manual Specifications

File Format

Print Quality:

High-quality print on durable paper, suitable for workshop environments.

Print Quality

Paper Type:

Durable, semi-gloss paper designed for repeated use.

Binding Type

Binding Type:

Professional binding (e.g., perfect bound, spiral bound for lay-flat functionality).

Completeness

Completeness Level:

Complete factory service manual content.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Air-cooled, four-stroke, horizontally opposed twin-cylinder (Boxer).

Displacement:

Approximately 798 cc (depending on specific R80 variant, e.g., 797.5 cc).

Bore X Stroke:

Typically 82.5 mm x 74.5 mm.

Compression Ratio:

Typically 8.2:1 to 9.2:1 depending on model and tuning.

Performance

Horsepower:

Approximately 50-55 HP at 6,500 RPM (varies by specific model).

Torque:

Approximately 48-52 lb-ft at 4,500 RPM (varies by specific model).

Fuel System

Carburetor Type:

Dual Bing constant-velocity carburetors (e.g., Bing 32/36/40 mm depending on model).

Fuel Type:

Unleaded gasoline, minimum 87 octane recommended (check specific model for exact recommendation).

Ignition

Ignition System:

Electronic ignition (breakerless) or contact breaker points on earlier/some variants.

Lubrication

Oil Capacity:

Approximately 2.5 - 3.0 liters (check specific model for exact capacity).

Oil Type Specification:

SAE 20W-50 or SAE 10W-40 motorcycle specific oil (API SG or higher recommended).

Cooling

Cooling Method:

Air-cooled.

🔧 Transmission

Standard

Transmission Type:

5-speed manual gearbox.

Gear Ratios:

Specific ratios vary by model; manual will detail them.

Clutch

Clutch Type:

Dry single-plate or wet multi-plate clutch (depending on specific R80 variant and evolution).

Features

Drive Type:

Shaft drive to rear wheel.

Fluid

Gearbox Oil Type:

SAE 80W/90 GL-4 hypoid gear oil.

Final Drive Oil Type:

SAE 80W/90 GL-5 hypoid gear oil.

📐 Dimensions

Exterior

Wheelbase:

Varies by model (e.g., R80/7 approx. 1440 mm, R80GS approx. 1430 mm).

Seat Height:

Varies by model (e.g., R80GS higher than R80/7).

Weights

Dry Weight:

Varies by model (e.g., R80/7 approx. 195 kg, R80GS approx. 185 kg dry).

Fuel Tank Capacity:

Varies by model (e.g., R80/7 approx. 18 liters, R80GS approx. 19 liters).

🛡️ Safety Features

Ratings

Safety Considerations:

Emphasis on proper maintenance of braking system and tires for safe operation.

Active Features

Braking System:

Hydraulic disc brakes front and rear (e.g., Brembo calipers), rear drum on some models. ABS was not a standard feature in 1987.

Suspension Stability:

Well-engineered suspension for stable handling and roadholding.

Passive Features

Frame Construction:

Robust steel tube frame providing good rigidity.

💡 Technology Features

Infotainment

Infotainment System:

None (basic analog gauges).

Driver Assistance

Driver Assistance Features:

None.

Connectivity

Connectivity Features:

None.

Engine Management

Engine Management System:

Mechanical fuel delivery (carburetors) and ignition timing.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 km or annually (check manual for specifics).

Valve Adjustment Interval:

Every 6,000-10,000 km.

Spark Plug Replacement:

Every 10,000-15,000 km.

Brake Fluid Flush:

Every 2 years.

Fluid Specifications

Engine Oil Specification:

SAE 20W-50 or SAE 10W-40 motorcycle specific oil.

Gearbox Oil Specification:

SAE 80W/90 GL-4 hypoid gear oil.

Final Drive Oil Specification:

SAE 80W/90 GL-5 hypoid gear oil.

Brake Fluid Specification:

DOT 3 or DOT 4 hydraulic brake fluid.

Known Issues

Common Wear Items:

Clutch wear, output shaft seal leaks, carb float bowl gaskets, fork seal leaks, exhaust header leaks.

Electrical Issues:

Loose connections, aging wiring insulation, regulator/rectifier failure (on some variants).

Preventative Maintenance

Importance Of Documentation:

Crucial for timely maintenance, preventing costly repairs and ensuring reliability of this classic machine.

📚 Vehicle History

Brand Heritage

Bmw Motorrad Legacy:

Continued development of the successful boxer engine platform with shaft drive, a signature of BMW motorcycles since the 1920s.

Model Evolution

R80 Lineage:

The R80 series evolved from earlier R75 and R90 models, offering a balance of performance, economy, and touring capability.

1987 Context:

This period saw BMW refining its boxer models, including the introduction of the R80GS which pioneered the adventure touring segment.

Production

Manufacturing Location:

Berlin, Germany (Spandau plant).

🏆 Awards & Recognition

Recognitions

Industry Acclaim:

The R80 series is highly regarded for its durability, reliability, and versatility, often praised for its timeless design and character.

Ratings

Owner Satisfaction:

Consistently high owner satisfaction due to low running costs and longevity when properly maintained.

Certifications

Certification Status:

Not applicable in the modern sense; represents robust European engineering standards of its era.