BMW R 80 GS 1987-1988 Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: R 80 GS Model Variant: R80GS Model Subtype: Dual-Sport / Adventure Motorcycle Generation Generation Code: First Generation (Monolever) Codes Engine Code Family: M80...

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Taper: Motorcycle

Distributeur:

UGS: 101917

Mots clés: 1987 1988 BMW Cars Misc Motorcycle R 80 GS

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

R 80 GS

Model Variant:

R80GS

Model Subtype:

Dual-Sport / Adventure Motorcycle

Generation

Generation Code:

First Generation (Monolever)

Codes

Engine Code Family:

👋 Introduction

Market Position

Market Segment:

Enduro / Adventure Touring Motorcycle

Target Audience:

Enthusiast Owners, Independent Repair Shops, BMW Technicians

Competitive Analysis

Key Competitors:

Honda Africa Twin (later models), Yamaha XT600, Kawasaki KLR650, Suzuki DR650

Key Features

Vehicle Key Features:

Robust Boxer Twin Engine, Monolever Rear Suspension, Durable Construction, Excellent Off-Road Capability, Long-Distance Touring Comfort

Manual Value Proposition

Manual Utility:

Essential for DIY maintenance, repair, and diagnostics, ensuring optimal performance and longevity of the R 80 GS.

📋 Manual Details

Coverage Areas

Geographic Coverage:

Global (factory specifications)

Model Year Coverage:

1987, 1988

Page Count

Estimated Page Count:

200-300 (typical for this era of comprehensive factory manual)

Manual Type

Manual Type:

Factory Service and Repair Manual

Language

Language:

English (primary, based on typical factory manuals, may contain some German terms)

Format

Format:

PDF (Digital)

📖 Manual Coverage

Systems Covered

Engine System:

Full Engine Overhaul, Top End (Cylinder Heads, Valves), Bottom End (Crankshaft, Connecting Rods), Piston/Cylinder Assembly, Camshafts, Timing Chain, Oil Pump, Lubrication System

Fuel System:

Carburetor Diagnosis and Rebuild (Bing 32/40), Fuel Pump, Fuel Lines, Fuel Tank and Cap

Ignition System:

Electronic Ignition (CDI), Ignition Coils, Spark Plugs, Ignition Timing Adjustment

Exhaust System:

Muffler Replacement, Exhaust Pipe Connections, Gasket Replacement

Transmission System:

Gearbox Disassembly and Reassembly, Clutch Operation and Adjustment (Dry Clutch), Gear Shifting Mechanism, Final Drive (Shaft Drive) Inspection and Maintenance

Chassis System:

Frame Inspection, Swingarm, Rear Suspension (Monolever Paralever System), Front Suspension (Telescopic Forks), Steering Head Bearings

Braking System:

Front and Rear Drum/Disc Brakes (depending on specific market configuration), Brake Pad/Shoe Replacement, Brake Fluid Flush and Bleed, Master Cylinder, Caliper Overhaul

Electrical System:

Wiring Diagrams, Battery Maintenance, Charging System (Alternator/Generator), Starter Motor, Lighting System (Headlight, Taillight, Indicators), Instrument Cluster, Horn

Bodywork And Trim:

Fender Removal/Installation, Seat Replacement, Fuel Tank Mounting, Fairing/Windscreen (if equipped) Removal/Installation, Luggage Rack Systems

Procedures Included

Maintenance Procedures:

Scheduled Maintenance, Oil and Filter Changes, Spark Plug Replacement, Air Filter Cleaning/Replacement, Valve Clearance Adjustment, Drive Shaft Lubrication, Battery Charging

Repair Procedures:

Engine Rebuilds, Transmission Overhauls, Suspension Component Replacement, Brake System Repairs, Electrical System Troubleshooting and Component Replacement

Troubleshooting Guides:

Diagnostic Procedures for Common Problems, Symptom-Based Troubleshooting Tables, Fault Code Interpretation (if applicable)

Specifications Data:

Torque Values for all fasteners, Clearances, Fluid Capacities, Electrical Specifications

Technical Depth

Diagnostic Capability:

Advanced Diagnostics and Troubleshooting

Rebuild Depth:

Complete Engine and Transmission Rebuilds

Diagnostic Tools:

References to special tools and diagnostic procedures

📊 Manual Specifications

File Format

File Format:

PDF Quality:

High-Resolution Scans (expected for factory manuals, optimized for readability of text and images)

Searchability:

Text Searchable (OCR processed PDF)

Print Quality

Printability:

Printable Pages

Binding Type

Binding Type:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Air-Cooled, Four-Stroke, Flat-Twin (Boxer)

Displacement:

797.5 cc (798 cm³)

Bore X Stroke:

84.8 mm x 70.6 mm

Compression Ratio:

8.2:1

Valve Train:

Overhead Camshafts (SOHC), Pushrods, Rocker Arms

Power Output:

Approx. 50 hp (37 kW) at 6500 rpm (stated DIN)

Torque Output:

Approx. 60 Nm (44 lb-ft) at 5000 rpm (stated DIN)

Fuel System

Carburetion:

Twin Bing 32/40 Constant Velocity (CV) Carburetors

Fuel Type:

Unleaded Gasoline (Premium Recommended)

Fuel Tank Capacity:

20 Liters (5.3 US Gallons)

Lubrication

Oil Capacity With Filter:

3.0 Liters (3.2 US Quarts)

Recommended Oil Grade:

SAE 20W-50 or SAE 15W-40 (API SG or higher)

🔧 Transmission

Standard

Transmission Type:

5-Speed Manual Constant Mesh Gearbox

Features

Clutch Type:

Single Dry Plate Clutch (operated via cable)

Final Drive:

Shaft Drive with Universal Joint to Rear Wheel

Fluid Type

Transmission Fluid:

SAE 75W-90 or SAE 80W-90 GL-5 Gear Oil

Fluid Capacity

Transmission Oil Capacity:

0.25 Liters (0.26 US Quarts)

📐 Dimensions

Exterior

Length:

Approx. 2220 mm (87.4 in)

Width:

Approx. 930 mm (36.6 in) at handlebars

Height:

Approx. 1375 mm (54.1 in) at seat

Weights

Dry Weight:

Approx. 200 kg (441 lbs)

Wet Weight:

Approx. 215 kg (474 lbs) (fully fueled)

Wheels And Tires

Front Wheel Size:

2.15 x 19 inch (spoked)

Rear Wheel Size:

3.00 x 17 inch (spoked)

Front Tire Size:

90/90-19 (Tubed)

Rear Tire Size:

130/80-17 (Tubed)

Suspension

Front Suspension Type:

Telescopic Fork with 200mm travel

Rear Suspension Type:

BMW Monolever with WP Monoshock, Adjustable Preload, 170mm travel

Braking

Front Brake Type:

Single 285mm Disc with 2-Piston Caliper (some models may have drum)

Rear Brake Type:

Drum Brake (some models may have disc)

🛡️ Safety Features

Ratings

Crash Safety Ratings:

N/A (Motorcycle specific safety is inherent in design, not typically rated by consumer agencies like cars)

Active Features

Handling Stability:

Balanced chassis geometry, Monolever rear suspension contributing to stability

Braking Performance:

Adequate braking for the era, disc brake option offers superior stopping power

Passive Features

Lighting System:

Halogen Headlight, LED Taillight/Brake Light, Turn Signals

Frame Construction:

Steel Tubular Frame providing rigidity and protection

💡 Technology Features

Infotainment

Infotainment System:

None (Basic motorcycle instrumentation)

Driver Assistance

Driver Assistance Features:

None (Mechanical systems only)

Connectivity

Connectivity Features:

Instrumentation

Instrument Cluster:

Analog speedometer, tachometer, odometer, trip meter, engine temperature warning light, oil pressure warning light, neutral indicator, high beam indicator.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually

Valve Adjustment Interval:

Every 10,000 - 15,000 km (6,000 - 10,000 miles)

Spark Plug Replacement Interval:

Every 10,000 - 15,000 km (6,000 - 10,000 miles)

Drive Shaft Lubrication:

Every 10,000 km (6,000 miles)

Fluid Specifications

Engine Oil Spec:

API SG or higher, SAE 20W-50 or SAE 15W-40

Brake Fluid Spec:

DOT 4 (check manual for specific type and replacement interval)

Fork Oil Type:

SAE 15W (refer to manual for specific grade and quantity)

Known Issues

Common Wear Items:

Clutch wear, worn swingarm bearings, alternator brushes, exhaust header leaks, starter motor solenoid issues, carburetor synchronization.

Potential Electrical Gremlins:

Corroded connectors, aging wiring harness insulation, voltage regulator issues.

Preventative Maintenance

Chassis Care:

Regular cleaning and inspection of the frame, suspension linkages, and driveshaft boot.

📚 Vehicle History

Brand Heritage

Brand Legacy:

BMW Motorrad, renowned for engineering, durability, and innovation in motorcycle design since the early 20th century.

Model Evolution

Predecessor Model:

BMW R 80 G/S

Key Evolution From G S:

Introduction of the Monolever rear suspension system for improved handling and reduced unsprung weight.

Development Context:

Building on the success of the R 80 G/S, the R 80 GS aimed to enhance performance and rider comfort for adventure touring and off-road use.

Production

Production Years:

1987-1995 (for R80GS variant, with minor updates)

Manufacturing Location:

Berlin, Germany

🏆 Awards & Recognition

Recognitions

Historical Accolades:

The R 80 GS is widely recognized as a pioneering and highly capable adventure motorcycle that defined a segment, praised for its durability and go-anywhere ability.

Ratings

Owner Satisfaction:

Consistently high owner satisfaction for its reliability and capability, despite its age.

Certifications

Manufacturer Standards:

Manufactured to BMW's stringent quality and engineering standards of the era.