Target Audience:
Harley-Davidson owners, enthusiasts, and independent repair shops specializing in vintage motorcycles.
Manual Value:
Essential resource for maintaining and repairing a classic Shovelhead Electra Glide, crucial for preserving originality and functionality.
Digital Convenience:
PDF format allows for easy storage, access on multiple devices, and selective printing of pages.
Historical Accuracy:
Provides period-correct information and procedures essential for working on a 1972 model.
Primary Coverage:
Comprehensive service and repair for 1972 Harley-Davidson Electra Glide FL models equipped with Shovelhead engines.
Secondary Coverage:
Includes maintenance, diagnostics, troubleshooting, and detailed repair procedures for all major vehicle systems.
Estimated Pages:
300-500 (estimated for a comprehensive service manual of this era)
Type:
Service and Repair Manual
Engine:
Complete disassembly, inspection, assembly, tuning, and troubleshooting of the Shovelhead V-twin engine (including lubrication, cooling, ignition, and fuel delivery).
Transmission:
4-speed constant mesh transmission service, repair, and adjustments.
Drivetrain:
Primary drive, clutch, final drive (chain) inspection, adjustment, and replacement.
Chassis Suspension:
Front fork (telescopic) overhaul, rear shock absorber service, frame inspection and repair.
Brakes:
Front and rear brake system maintenance, adjustments, and component replacement (including hydraulic systems if applicable for the era, though likely drum brakes for '72).
Electrical:
Wiring diagrams, lighting system service, charging system (generator/alternator), ignition system troubleshooting, starter motor, battery maintenance.
Fuel System:
Carburetor (e.g., Linkert, Keihin) service, adjustment, and troubleshooting; fuel tank and lines.
Bodywork Fittings:
Fairing, saddlebags, seat, controls, and accessory mounting.
Routine Maintenance:
Oil changes, filter replacement, spark plug service, chain lubrication and adjustment, brake checks, tire pressure.
Troubleshooting:
Diagnostic charts and procedures for common starting, running, and electrical issues.
Engine Rebuild:
Detailed steps for engine disassembly, component inspection, measurement, and reassembly, including piston, rings, valve train, and crankshaft.
Transmission Repair:
Gearbox disassembly, gear replacement, bearing service, and shifting mechanism adjustments.
Electrical Diagnostics:
Troubleshooting ignition timing, charging system faults, starter issues, and lighting problems using multimeter readings and wiring diagrams.
Carburetor Tuning:
Jetting adjustments, idle speed setting, and float level calibration for optimal performance.
Suspension Overhaul:
Fork seal replacement, oil changes, and shock absorber service.
Depth:
Comprehensive, covering everything from basic owner maintenance to full engine and transmission rebuilds, including specifications and tolerances.
Engine Type:
Air-cooled, 45-degree V-twin
Engine Family:
Shovelhead
Displacement:
74 cubic inches (1200cc)
Bore X Stroke:
3.4375 in x 4.00 in (87.3 mm x 101.6 mm)
Compression Ratio:
Approximately 8.0:1 (varies slightly with factory configurations)
Horsepower:
Approx. 60-65 HP (est. at crankshaft)
Torque:
Approx. 70-75 lb-ft (est. at crankshaft)
Carburetor:
Typically a Linkert M-series or early Keihin butterfly carburetor. Specific model dependent.
Fuel Type:
Unleaded gasoline (though leaded was common at the time; manual should specify suitable octane and lead content recommendations)
Ignition System:
Contact breaker points ignition system with battery and coil.
Wheelbase:
Approx. 61.5 inches (1562 mm)
Length:
Approx. 93 inches (2362 mm)
Dry Weight:
Approx. 620-640 lbs (281-290 kg)
Gross Vehicle Weight Rating:
Not typically specified as a GVWR in the modern sense, but weight capacity for rider and cargo.
Saddlebag Capacity:
Integrated or detachable hard saddlebags, volume varies but designed for touring luggage.
Safety Standards:
No formal crash safety ratings (e.g., NHTSA) for motorcycles of this era. Safety relies on rider skill and mechanical integrity.
Braking System:
Drum brakes front and rear are standard for 1972 FL models. Manual will cover adjustment and maintenance.
Lighting:
Headlight, taillight, brake light, turn signals (often optional or dealer-installed depending on market/trim).
Oil Change Interval:
Typically every 2,000-3,000 miles or annually. Manual will specify exact interval and oil type.
Primary Chain Tension:
Check and adjust every 2,000-4,000 miles, or as specified by symptoms of wear.
Spark Plug Replacement:
Typically every 10,000-12,000 miles. Manual will recommend specific spark plug type and gap.
Engine Oil:
Viscosity and type (e.g., SAE 20W50 or 50W, mineral oil) to be specified in manual, depending on operating temperature and OEM recommendations.
Transmission Oil:
As noted in transmission section, typically a GL-4 rated gear oil.
Primary Chain Case Oil:
Typically the same engine oil or a dedicated primary lubricant, as specified in the manual.
Shifter Mechanism Wear:
Wear in the shifter pawl or drum can lead to shifting difficulties.
Oil Leaks:
Common with vintage motorcycles due to aging seals and gaskets; manual provides replacement procedures.
Carburetor Performance:
Linkert carburetors can be finicky; manual details proper adjustment and rebuilding. Early Keihins also require regular tuning.
Generator Output:
Generator output can degrade with age; manual covers testing and replacement.
Pushrod Tube Seals:
Common source of oil leaks from the engine cylinders.
Harley Davidson Legacy:
Harley-Davidson has a long-standing heritage in American motorcycling, known for its V-twin engines and touring capabilities.
Electra Glide Lineage:
The Electra Glide, introduced in 1965, evolved into the premier full-dress touring motorcycle for Harley-Davidson, becoming an icon of the open road.
Shovelhead Era:
The Shovelhead engine, introduced in 1966, replaced the Panhead and served Harley-Davidson through the early 1980s, characterized by its distinct rocker box shape.
Manufacturing Location:
Milwaukee, Wisconsin, USA
Model Significance 1972:
The 1972 model year saw continued refinement of the Shovelhead platform and the Electra Glide's touring features, solidifying its market position.
