Motorcycle Segment:
Classic Boxer-twin sport touring/standard motorcycle
Competitors 1982:
Honda CB750, Kawasaki KZ1000, Suzuki GS1000, Yamaha XS1100
Powertrain:
Air-cooled, horizontally opposed twin-cylinder boxer engine
Drivetrain:
Shaft drive, minimizing maintenance compared to chain drive
Handling:
Known for stable handling and comfortable ride, especially with later suspension upgrades
Durability:
Renowned for robust construction and longevity when properly maintained
Engine:
Overhaul, tuning, diagnostics, lubrication, cooling system
Fuel System:
Carburetor servicing (Bing), fuel pump, fuel lines, fuel tank
Ignition System:
Points and condenser ignition, ignition timing, coil, spark plugs
Transmission:
Gearbox overhaul, clutch, drive shaft, final drive
Electrical System:
Wiring diagrams, battery, alternator, starter motor, lighting, instrumentation
Chassis And Suspension:
Front fork (BMW Telelever/Earles Fork variations), rear shock absorbers, swingarm
Brakes:
Front and rear brake systems (drum and disc variations), hydraulic system, brake fluid
Wheels And Tires:
Wheel bearing replacement, tire pressure, wheel balancing
Bodywork And Frame:
Frame inspection, seat, fenders, fairings (if applicable)
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, chain lubrication (if applicable), valve adjustments
Troubleshooting:
Diagnostic charts, common problem identification and solutions
Repair And Rebuild:
Complete engine rebuild, transmission overhaul, suspension component replacement, electrical system repairs
Adjustments:
Carburetor synchronization, idle speed adjustment, ignition timing, clutch adjustment
Restoration:
Guidance on refurbishing and restoring original components
Depth:
Comprehensive, covering all aspects from basic checks to full engine disassembly and rebuild
File Type:
Likely PDF, optimized for digital viewing and printing
Image Resolution:
High-resolution scans of original diagrams and photos for clarity
Binding:
Not Applicable (Digital Format)
Paper Quality:
Not Applicable (Digital Format)
Engine Type:
Four-stroke, air-cooled, horizontally opposed twin-cylinder (Boxer)
Displacement:
797.1 cc (48.65 cu in)
Bore X Stroke:
82 mm x 75.6 mm (3.23 in x 2.98 in)
Valve Train:
Overhead valves (OHV), pushrod actuated
Horsepower:
Approx. 50 HP (37 kW) @ 6000 RPM (Varies slightly by specific R80 model)
Torque:
Approx. 60 Nm (44 lb-ft) @ 4500 RPM (Varies slightly by specific R80 model)
Carburetors:
Dual Bing 32mm constant velocity carburetors
Fuel Type:
Unleaded gasoline (87-91 octane recommended)
Ignition Type:
Battery-coil ignition with breaker points and condenser
Oil Type:
SAE 20W-50 motorcycle-specific oil
Oil Capacity:
Approx. 2.75 liters (2.9 US quarts)
Type:
5-speed constant mesh gearbox
Options:
N/A (standard configuration)
Clutch:
Single dry plate, diaphragm spring operated
Final Drive:
Enclosed driveshaft with universal joint
Gearbox Oil Type:
SAE 90 Hypoid Gear Oil (API GL-4)
Gearbox Oil Capacity:
Approx. 0.8 liters (0.85 US quarts)
Length:
Approx. 2180 mm (85.8 in) (Varies by model)
Width:
Approx. 750 mm (29.5 in) (Varies by model)
Height:
Approx. 1250 mm (49.2 in) (Varies by model)
Dry Weight:
Approx. 195 kg (430 lbs) (Varies by model)
Fuel Tank Capacity:
24 liters (6.3 US gallons)
Safety Standards:
Designed to meet European and North American safety standards of the era.
Braking:
Front disc brake (single or dual depending on model), rear drum brake or disc brake.
Lighting:
Halogen headlight, taillight, turn signals
Features:
Analog gauges: speedometer, tachometer, odometer, fuel gauge, voltmeter/ammeter (depending on model).
Features:
None (traditional motorcycle design)
Features:
None (traditional motorcycle design)
Oil Change Interval:
Every 5,000 km (3,000 miles) or annually, whichever comes first.
Valve Adjustment Interval:
Every 10,000 km (6,000 miles) or annually.
Spark Plug Replacement:
Every 10,000 km (6,000 miles) or as needed based on inspection.
Gearbox Oil Change:
Every 10,000 km (6,000 miles) or annually.
Final Drive Oil Change:
Every 20,000 km (12,000 miles) or every two years.
Brake Fluid Type:
DOT 4 brake fluid
Fork Oil Type:
SAE 15W or 20W fork oil (specific viscosity recommended by manual)
Common Wear Items:
Carburetor diaphrams, clutch plates, fork seals, drive shaft U-joint, swingarm bearings
Electrical Concerns:
Aging wiring insulation, points ignition reliability at higher RPMs, voltage regulator issues
Engine Tuning:
Carburetor synchronization and jetting can be sensitive to altitude and modifications
Carburetor Cleaning:
Regular cleaning and adjustment of Bing carburetors is crucial for optimal performance.
Shaft Drive Lubrication:
Proper lubrication of the final drive and driveshaft is essential for longevity.
Bmw Motorrad Legacy:
BMW Motorrad, established in 1916, has a long history of producing reliable and innovative motorcycles, particularly known for its boxer engines and shaft drive.
R80 Lineage:
The R80 series evolved from earlier BMW boxer twins like the R75/5 and R90/6, offering a balance of performance and touring comfort, positioned below the R100 models.
Variations:
Key variants include the R80/7 (standard), R80G/S (off-road/dual-sport), and R80ST (sport-touring).
Production Period:
The R80 model line was produced from 1977 to 1987, with the 1982 model year being a significant iteration.
