Target Audience:
Harley-Davidson owners, independent repair shops, restorers, and enthusiasts of the 1970-1972 era motorcycles
Value Proposition:
Provides essential, in-depth technical information often scarce for vintage models, enabling DIY repairs and professional restoration.
Comprehensiveness:
Covers the full spectrum of maintenance, repair, and rebuilding for specified models and years.
Historical Relevance:
Essential for preserving and maintaining iconic Harley-Davidson models from a significant period in their history.
Primary Coverage:
Mechanical repair, maintenance, rebuilding, refurbishment, restoration
Model Variants:
Electra Glide, Super Glide
Estimated Page Count:
Comprehensive (Specific count not provided, but implied to be extensive for workshop quality)
Type:
Digital Workshop Repair Manual
Format:
Digital (Likely PDF or similar e-document format)
Engine Mechanical:
Detailed diagnostics, overhaul, troubleshooting for V-twin engines
Fuel System:
Carburetor tuning and rebuilding, fuel lines, fuel tank maintenance
Ignition System:
Ignition timing, spark plugs, coils, points and condenser (if applicable)
Transmission:
Gearbox disassembly, assembly, repair, and fluid servicing
Clutch:
Clutch adjustment, replacement, and service
Electrical System:
Wiring diagrams, battery, charging system (generator/alternator), lighting, starter, and accessories
Suspension Front:
Fork maintenance, seal replacement, fluid changes, steering head bearing service
Suspension Rear:
Shock absorber servicing, linkage maintenance (if applicable)
Brakes:
Drum brake systems (front and rear), brake shoe replacement, linkage adjustment
Wheels And Tires:
Tire replacement, wheel bearing service, spoke adjustment (if applicable)
Bodywork And Frame:
Frame inspection, fender mounting, fairing (Electra Glide specific) repair and installation, seat service
Exhaust System:
Muffler and header pipe inspection and replacement
Routine Maintenance:
Oil changes, filter replacement, chain/belt adjustment, lubrication points
Troubleshooting Diagnostics:
Identifying and resolving common performance issues and component failures
Engine Rebuild:
Complete engine disassembly, cleaning, inspection, part replacement, and reassembly
Transmission Overhaul:
Full gearbox rebuild, including gear inspection and bearing replacement
Electrical Repair:
Wiring harness repair, component testing, and replacement
Suspension Service:
Fork seal replacement, steering head bearing adjustment, shock absorber servicing
Brake Maintenance:
Brake shoe inspection, adjustment, and replacement procedures
Restoration Tips:
Guidance on refurbishing and restoring original components and finishes
Depth:
Comprehensive workshop level, covering from basic service to complete engine and transmission rebuilds
Detail Level:
Detailed step-by-step instructions, torque specifications, clearances, and diagnostic charts
Engine Type:
Air-cooled, 45-degree V-twin OHV (Overhead Valve)
Engine Displacement Common:
74 cubic inches (1213 cc) - Shovelhead engine family
Bore X Stroke Common:
3.4375 in x 4.25 in (87.3 mm x 108.0 mm)
Compression Ratio Typical:
8.0:1 or 8.5:1 (varies slightly by model year and specific variant)
Cylinder Heads:
Cast iron or aluminum alloy (depending on specific component)
Valve Train:
Pushrod-actuated overhead valves, two valves per cylinder
Horsepower Approximate:
60-70 HP (estimated, official figures vary and were often not precisely advertised as modern vehicles)
Torque Approximate:
75-85 ft-lbs (estimated, at lower RPMs)
Carburetion:
Single Linkert M97, Keihin butterfly, or Stromberg (depending on model year and market)
Fuel Type:
Unleaded gasoline, octane rating as specified by Harley-Davidson (typically 91+ octane recommended for modern fuels)
Fuel Capacity:
Approximately 4.0 - 5.0 US gallons (tank size varies by model)
Transmission Type:
4-speed constant mesh manual transmission
Optional Transmissions:
N/A for this period; 4-speed was standard
Gear Selection:
Hand shift lever (left side) with foot clutch pedal (left side) or foot shifter (right side depending on model evolution and region)
Drive Type:
Chain drive to rear wheel
Clutch Type:
Wet multi-plate clutch, cable operated
Transmission Fluid:
Harley-Davidson recommended gear oil (e.g., SAE 75W-90 or SAE 80W-90 GL-4)
Wheelbase Approximate:
60-62 inches (1524-1575 mm)
Seat Height Unladen Approximate:
28-30 inches (711-762 mm)
Dry Weight Approximate:
600-650 lbs (272-295 kg), depending on model and equipment
Gross Vehicle Weight Rating Approximate:
900-1000 lbs (408-454 kg)
Crash Safety Ratings:
N/A (Motorcycle safety ratings as understood today were not prevalent or standardized for this era)
Braking System:
Mechanical drum brakes front and rear
Lighting:
Headlight, taillight, brake light, turn signals (depending on market and specification)
Frame Construction:
Steel tube frame construction
Mirrors:
Handlebar-mounted rear-view mirrors
Oil Change Interval:
Typically every 2,000-3,000 miles or annually. Manual will specify exact intervals and conditions.
Transmission Fluid Change:
Refer to manual for specific mileage or time intervals, often concurrent with engine oil changes or annually.
Primary Chain Tension Adjustment:
Regular checks and adjustments are crucial. Manual will detail the procedure and interval.
Spark Plug Replacement:
Refer to manual, typically 5,000-10,000 miles or as needed based on condition.
Engine Oil Type Capacity:
Harley-Davidson 20W50 motorcycle oil or equivalent. Capacity approximately 4 US quarts (3.8 liters). Specific type and capacity detailed in manual.
Transmission Fluid Type:
SAE 75W-90 or SAE 80W-90 GL-4 gear oil. Manual will provide exact specification.
Primary Chain Case Oil Type:
Motorcycle-specific primary lubricant (e.g., Harley-Davidson Primary Chaincase Lubricant or equivalent). Capacity approximately 1 US quart (0.95 liters).
Fork Oil Type Capacity:
Specific weight fork oil (e.g., 10W or 15W) and volume per fork leg. Manual will list exact specifications.
Carburetor Tuning:
Sensitivity to altitude and temperature; requires periodic adjustment and cleaning. Manual provides detailed procedures.
Primary Chain Tension:
Can loosen over time, leading to clunking noises and potential damage. Regular adjustment is vital.
Electrical Connections:
Corrosion and loose connections can cause intermittent issues with lights, ignition, and charging. Manual assists in tracing and repairing.
Oil Leaks:
Common in older motorcycles; gasket and seal degradation. Manual guides in identifying and replacing seals.
Shifter Pawl Wear:
Can lead to difficulty shifting gears or popping out of gear. Manual covers transmission disassembly for repair.
Brand Legacy:
Harley-Davidson, established in 1903, is synonymous with American motorcycle culture, known for its V-twin engines and robust touring capabilities.
Electra Glide Introduction:
The Electra Glide, introduced in 1965, was Harley-Davidson's first large touring motorcycle with an electric starter and a large fairing, revolutionizing rider comfort.
Super Glide Introduction:
The Super Glide, introduced in 1971, was a cruiser-style motorcycle that combined elements of the Sportster and Electra Glide, aimed at a broader market and featuring the 'cruiser' styling cues.
Engine Development:
The 1970-1972 models feature the Shovelhead engine, an evolution of the Panhead, known for its distinct sound and performance.
Manufacturing Location:
Milwaukee, Wisconsin, USA
