🏷️ Basic Information

Make:

BMW

Model:

R80

Model Variants:

R80/7, R80RT, R80G/S, R80ST

Engine Configuration:

Horizontally opposed twin-cylinder boxer

Generation Name:

Type 247

Engine Codes:

R80, R80RT, R80G/S, R80ST

👋 Introduction

Target Audience:

Professional Technicians and DIY Mechanics

Value Proposition:

Provides professional-level repair and maintenance information for a classic BMW motorcycle at a fraction of the cost of physical manuals or professional labor.

Comprehensiveness:

Covers every aspect needed for repair, maintenance, rebuilding, refurbishing, and restoration.

Detail Level:

Detailed sub-steps, notes, cautions, and warnings for critical information.

User Friendliness:

Numbered instructions, bold figure numbers, and a numbered table of contents for easy navigation.

📋 Manual Details

Coverage Years:

1978-1996

Covered Models:

BMW R80, R80/7, R80RT, R80G/S, R80ST

Estimated Page Count:

High (specific number not provided, but described as comprehensive)

Manual Type:

Full Service Repair Manual

Language:

English

File Format:

PDF

Delivery Method:

Instant Download

📖 Manual Coverage

Engine:

Complete overhaul, tuning, carburetor service, lubrication system, cooling system (air-cooled), exhaust system.

Transmission:

Gearbox overhaul, clutch service, final drive maintenance, gearshift mechanism.

Chassis And Suspension:

Front fork service (including seals and oil), rear shock absorber replacement and adjustment, swingarm service, wheel bearing maintenance, steering head bearing service.

Brakes:

Front and rear brake system overhaul (disc and drum where applicable), hydraulic system maintenance, brake pad/shoe replacement.

Electrical System:

Ignition system diagnosis and repair, lighting system, battery maintenance, charging system (alternator/generator), starter motor, wiring diagrams, troubleshooting.

Fuel System:

Fuel tank maintenance, fuel lines, fuel pump, carburetor identification and service (e.g., Bing).

Bodywork And Frame:

Fairing and body panel removal/installation, frame inspection, seat and luggage rack components.

Maintenance:

Regular service intervals, oil changes, filter replacements, spark plug service, lubrication points, valve clearance adjustment.

Diagnostics:

Troubleshooting common problems, diagnostic procedures for engine and electrical systems, fault finding.

Repair:

Step-by-step repair instructions for all major mechanical and electrical components.

Rebuilding:

Comprehensive instructions for engine and gearbox rebuilding.

Refurbishment Restoration:

Guidance on restoring the motorcycle to its original condition, including parts identification and service.

Depth:

Advanced diagnostic and repair procedures; suitable for professional technicians and experienced DIY mechanics.

Illustrations:

Detailed illustrations, drawings, and photos with enlarged inset views for clarity.

Wiring Diagrams:

Comprehensive wiring diagrams integrated with troubleshooting and electrical service procedures.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Printability:

Full printable pages

Binding:

Not Applicable (Digital Download)

Paper Quality:

Not Applicable (Digital Download)

Reader Requirement:

Adobe PDF Reader

Decompression Requirement:

WinRAR

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Type:

Four-stroke, horizontally opposed twin-cylinder boxer engine

Displacement:

797 cc (approx.)

Bore X Stroke:

90.0 mm x 79.0 mm (typical)

Compression Ratio:

Typically 8.2:1 or 9.5:1 depending on model variant

Horsepower:

Approx. 50 hp @ 6200 rpm (varies by model)

Torque:

Approx. 60 Nm (44 lb-ft) @ 4500 rpm (varies by model)

Carburetors:

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

Fuel Type:

Unleaded gasoline (91 octane or higher recommended)

Ignition Type:

Battery-coil ignition with electronic ignition module (post-1981) or breaker points

🔧 Transmission

Transmission Type:

5-speed manual gearbox

Clutch Type:

Single dry plate clutch

Drive Type:

Shaft drive to rear wheel

Final Drive Ratio:

Typically 33/11 (3.00:1) or similar, varies by model variant

📐 Dimensions

Wheelbase:

Approximately 1400-1450 mm (varies by model)

Dry Weight:

Approximately 180-220 kg (varies significantly by model: R80/7, R80RT, R80G/S, R80ST)

🛡️ Safety Features

Safety Focus:

Manual covers safety-related maintenance and repair procedures to ensure vehicle integrity.

Braking System:

Hydraulically actuated front and rear brakes. Later models may feature ABS.

Lighting:

Standard headlight, taillight, turn signals, and brake light as covered by the electrical system section.

💡 Technology Features

Infotainment Systems:

Not applicable for this era of motorcycle; focus is on mechanical and electrical systems.

ABS:

Some later R80RT models may have featured ABS.

Connectivity Features:

Not applicable.

Headlight Type:

Halogen headlight, with specific wattage and bulb type detailed in manual.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-10,000 km or annually, refer to specific model section.

Valve Clearance Adjustment:

Typically every 10,000-20,000 km, crucial for boxer engines.

Spark Plug Replacement:

Every 10,000-20,000 km, or as recommended.

Engine Oil Type:

SAE 20W-50 or SAE 10W-40 motorcycle-specific oil (e.g., BMW Motorcraft, Castrol)

Transmission Oil Type:

Hypoid gear oil SAE 90 (e.g., BMW recommended)

Final Drive Oil Type:

Hypoid gear oil SAE 90

Brake Fluid Type:

DOT 4 (or DOT 3 for older specifications)

Fork Oil Type:

Specific viscosity fork oil, often SAE 10W or 15W (refer to manual for exact type and quantity)

Common Problems:

Swingarm bearing wear, steering head bearing adjustment and lubrication.

📚 Vehicle History

Brand Legacy:

BMW Motorrad has a long history of producing reliable and technologically advanced motorcycles, particularly known for its boxer engines and shaft drive.

R80 Lineage:

The R80 was a significant model in BMW's lineup, offering a balance of performance and touring capability, evolving from the R75/5 and leading towards later R100 models. It introduced or refined various technical aspects of BMW's boxer platform.

Production Period:

1977 - 1995 (exact start/end for R80 variants may differ slightly)

Manufacturing Location:

Berlin, Germany (BMW Motorrad plant)

🏆 Awards & Recognition

Design Philosophy:

BMW's consistent focus on build quality, durability, and rider comfort characterized the R80 series, earning it a reputation as a reliable touring and everyday motorcycle.

Owner Satisfaction:

Generally high owner satisfaction due to longevity and robust engineering, although maintenance is crucial.