Historical Significance:
The 1971 Electra Glide FL Shovelhead represents a pivotal era in Harley-Davidson's touring motorcycle development, solidifying the Electra Glide's position as the definitive American cruiser.
Target Audience:
Owners, mechanics, and enthusiasts of vintage Harley-Davidson motorcycles, particularly those seeking to maintain or restore a 1971 FL Shovelhead.
Competitors Era:
Competed against other large-displacement touring motorcycles from marques like Indian (though declining), and later European manufacturers exploring the touring segment.
Defining Characteristics:
Shovelhead engine, electric start (optional on some FL models), large fairing, saddlebags, comfortable rider and passenger seating for long-distance travel.
Manual Value Proposition:
Essential for preserving the originality and functionality of a classic motorcycle, providing the definitive technical reference for repair and maintenance.
Primary Coverage:
Complete service and repair for 1971 Harley-Davidson Electra Glide FL Shovelhead
Secondary Coverage:
Troubleshooting, maintenance, technical specifications, electrical diagrams
Estimated Pages:
Approx. 300-400 pages (typical for comprehensive service manuals of this era)
Type:
Service and Repair Manual
Engine Systems:
Shovelhead V-Twin engine, carburetor (e.g., Keihin, Linkert depending on specific build), ignition system, lubrication, cooling (air-cooled)
Drivetrain Systems:
Clutch operation and adjustment, 4-speed transmission (Servi-Car models might differ), final drive, primary drive
Chassis Systems:
Frame construction, suspension (forks, rear shocks), steering, brakes (drum brakes front and rear), wheels and tires
Electrical Systems:
Wiring diagrams, lighting, battery, charging system (generator/alternator), starter motor, ignition switches, gauges
Bodywork And Trim:
Fairing components, saddlebags, fenders, seat, fuel tank, exhaust system
Maintenance Procedures:
Routine inspections, oil changes, filter replacements, spark plug servicing, chain/belt adjustment (if applicable), brake adjustments, cable lubrication
Repair Procedures:
Engine teardown and rebuild, transmission overhaul, carburetor rebuild, brake system service, electrical component replacement, suspension component service
Troubleshooting:
Diagnosing common problems, symptom-based troubleshooting guides, electrical diagnostic charts
Technical Adjustments:
Valve lash adjustment, ignition timing, carburetor mixture and idle speed, clutch and throttle cable free play
Depth:
Comprehensive, covering from basic rider maintenance to full engine and transmission rebuilds. Includes detailed diagrams and specifications for expert-level repairs.
Engine Type:
Air-cooled, 45-degree V-twin
Engine Family:
Shovelhead
Bore X Stroke In:
3.4375 x 4.25
Compression Ratio:
Approximately 8.0:1 (varies by specific engine build and carb tuning)
Valve Train:
Overhead valve (OHV), pushrod actuated
Horsepower Hp:
Estimated 60-65 HP (at crankshaft, actual figures vary)
Torque Lb Ft:
Estimated 70-75 lb-ft (at crankshaft, actual figures vary)
Carburetor Type:
Typically a Keihin butterfly or Linkert M-series (pre-1971 often Linkert, 1971 often Keihin). Manual will cover applicable types.
Fuel Type:
Unleaded gasoline (minimum 87 octane recommended for modern use)
Fuel Delivery:
Gravity feed from fuel tank to carburetor
Transmission Type:
4-speed constant mesh manual transmission
Primary Drive:
Duplex chain (often with compensator sprocket)
Optional Gearbox:
N/A for this specific FL model variant
Clutch Type:
Wet multi-plate
Gear Ratios:
Specific ratios detailed in the manual, crucial for performance tuning and diagnostics.
Wheelbase In:
Approx. 60.5" (varies slightly)
Length Overall In:
Approx. 93.7"
Seat Height In:
Approx. 28.0" (unladen)
Ground Clearance In:
Approx. 5.5"
Dry Weight Lbs:
Approx. 650-700 lbs (varies with accessories)
Gross Vehicle Weight Rating Gvwr Lbs:
Not typically specified for this era of motorcycle, but implies rider + cargo load capacity.
Crash Test Ratings:
N/A (Motorcycles from this era were not subject to standardized crash testing like automobiles.)
Braking System:
Hydraulic disc front brake (introduced on some models around this time, earlier had drum), drum rear brake.
Lighting:
Headlight, taillight, brake light, turn signals (functionality and maintenance covered)
Frame Construction:
Heavy-duty steel frame designed for stability and load carrying.
Audio System:
N/A (No integrated infotainment systems on 1971 models. Optional aftermarket radios existed.)
Dashboard Features:
Speedometer, ammeter/voltmeter, oil pressure light, ignition switch, headlight switch. Manual details operation and troubleshooting.
Oil Change Interval:
Every 2,000-3,000 miles or annually. Manual will specify exact mileage for the 1971 model.
Spark Plug Replacement:
Every 5,000-10,000 miles. Manual will provide specific torque and gap.
Chain Drive Lubrication:
Regularly (e.g., every 500 miles) or after riding in wet conditions.
Engine Oil Type:
Harley-Davidson 20W50 motorcycle oil is recommended for modern use. Original specification may have been SAE 50 or 60.
Engine Oil Capacity Qt:
Approximately 4 quarts (3.8 liters) with filter change. Manual will confirm.
Transmission Oil Type:
Harley-Davidson or equivalent transmission lubricant. Manual will specify grade.
Primary Drive Fluid:
Harley-Davidson primary chaincase lubricant or suitable motorcycle primary fluid.
Common Wear Items:
Pushrod tube seals (oil leaks), generator/regulator issues, carburetor tuning (especially older Linkert), clutch adjustment, brake wear (drum type).
Shovelhead Specifics:
Potential for oil leaks due to aging seals and gaskets. Valve adjustments are critical for proper engine operation.
Brand Identity:
Iconic American motorcycle manufacturer, known for V-twin engines, customization, and long-distance touring capabilities.
Electra Glide Introduction:
First introduced in 1965, evolving through Panhead and Shovelhead engine configurations. The 1971 model is part of the early Shovelhead era.
Shovelhead Engine Era:
The Shovelhead engine was produced from 1966 to 1984, replacing the Panhead and preceding the Evolution ('Evo') engine.
Manufacturing Location:
Milwaukee, Wisconsin, USA
Production Years Fl Shovelhead:
1966-1984 (specific FL variants within this range)
Historical Impact:
Considered a benchmark in American touring motorcycles for its era, solidifying Harley-Davidson's dominance in the large-displacement touring segment.
Enthusiast Recognition:
Highly regarded by collectors and enthusiasts for its classic styling, V-twin rumble, and the iconic Shovelhead engine. Often referred to as a 'classic' or 'vintage' icon.
