Positioning:
Essential resource for owners and mechanics of the iconic 1962 Harley-Davidson Duo-Glide, a flagship model of its time.
Value Proposition:
Provides factory-level accuracy and detail unmatched by aftermarket manuals, crucial for preserving the originality and functionality of a vintage motorcycle.
Features:
Includes detailed diagrams, exploded views, specifications, and step-by-step procedures directly from the manufacturer.
Primary Coverage:
Comprehensive service, repair, and maintenance for the 1962 Harley-Davidson Duo-Glide.
Secondary Coverage:
Includes detailed procedures for disassembly, assembly, adjustments, diagnostics, and component checks.
Estimated Pages:
Likely over 300 pages (typical for factory service manuals of this era).
Type:
Factory Service Repair Manual
Format:
Print (Original Factory Issue)
Engine:
Panhead (FL) Engine - disassembly, assembly, timing, lubrication, cooling, carburetor, ignition.
Transmission:
4-speed constant mesh transmission - disassembly, assembly, shift mechanism, lubrication.
Drivetrain:
Primary drive, clutch, final drive chain and sprockets.
Suspension:
Front fork (Hydra-Glide or Duo-Glide), rear shock absorbers and swingarm.
Brakes:
Drum brake systems (front and rear) - mechanism, adjustment, linings.
Electrical:
Ignition system (generator, coil, points, condenser, distributor), lighting, wiring diagrams, battery, horn.
Fuel System:
Fuel tank, fuel lines, carburetor (e.g., Linkert), fuel filter.
Frame And Body:
Frame construction, body panels, fenders, seat, handlebars, controls.
Wheels And Tires:
Wheel bearings, spokes, tire fitment and pressure.
Maintenance:
Routine checks, lubrication points, oil changes, filter replacements, spark plug service, battery maintenance.
Troubleshooting:
Diagnostic charts and symptom-based troubleshooting for common issues.
Repair:
Step-by-step repair instructions for all major components and systems.
Disassembly Assembly:
Detailed instructions for taking apart and reassembling engine, transmission, and other key assemblies.
Adjustments:
Carburetor tuning, ignition timing, clutch adjustment, brake adjustments, cable adjustments.
Depth:
Complete overhaul and rebuild procedures for engine, transmission, and major components.
Diagnostics:
In-depth diagnostic information for electrical and mechanical systems, including troubleshooting charts.
Special Tools:
Lists and descriptions of specialized tools required for certain procedures.
Type:
Harley-Davidson Panhead (OHV V-Twin)
Displacement:
74 cubic inches (1213 cc) or 80 cubic inches (1310 cc) - FLH models typically used the 80ci.
Bore X Stroke:
74ci: 3.4375 in. x 4.25 in. (87.3 mm x 108.0 mm); 80ci: 3.4375 in. x 4.5625 in. (87.3 mm x 115.9 mm).
Compression Ratio:
Typically around 7:1 to 7.5:1, depending on specific model and configuration.
Horsepower:
Estimated 50-55 HP (figures varied and were not always officially published).
Torque:
Estimated 65-70 lb-ft (figures varied).
Carburetor:
Linkert M-Series (e.g., M74B or M74).
Fuel Type:
Leaded gasoline, octane rating appropriate for the era (e.g., 87-90 octane).
Type:
Battery and Coil, Generator-based charging system, Distributor (optional on some models).
Type:
4-speed constant mesh, foot-shift, hand-clutch.
Transmission Options:
None for this model year.
Clutch Type:
Wet multi-plate clutch, operated by handlebar lever.
Gear Ratios:
Specific ratios would be detailed in the manual; typical ratios provided for 1st through 4th gear.
Fluid Type:
Specific Harley-Davidson transmission lubricant or equivalent (e.g., HD 360 SAE 50).
Fluid Capacity:
Approximately 1 pint (0.47 Liters).
Wheelbase:
Approximately 60-61 inches.
Length:
Approximately 88-90 inches.
Dry Weight:
Approximately 530-550 lbs (240-250 kg).
Gross Vehicle Weight Rating:
Not typically published for motorcycles of this era, but rider + luggage capacity implied.
Safety Ratings:
No formal crash test ratings as understood today; safety features were mechanical.
Braking System:
Drum brakes front and rear; effectiveness dependent on maintenance and condition.
Lighting System:
Headlight, taillight, brake light, turn signals (optional/market dependent).
Frame Integrity:
Robust steel frame designed for stability.
Oil Change Engine:
Typically every 1,000 - 2,000 miles or annually.
Spark Plug Service:
Every 2,000-4,000 miles.
Chain Lubrication Adjustment:
Regularly, based on mileage and conditions (e.g., every 500 miles).
Engine Oil Type:
HD 360 SAE 50 or equivalent petroleum-based oil.
Engine Oil Capacity:
Approximately 4 pints (1.9 Liters) for the 74ci; 5 pints (2.4 Liters) for the 80ci (includes oil in primary).
Primary Drive Fluid:
Usually same as engine oil (HD 360 SAE 50).
Transmission Oil Type:
HD 360 SAE 50 or specific Harley-Davidson transmission lubricant.
Fork Oil Type:
Specific fork oil weights as recommended by Harley-Davidson (often a light grade).
Common Problems:
Oil leaks (pan gasket, pushrod tubes), wear on valve guides, carburetor adjustment sensitivity, charging system (generator) reliability, clutch adjustment.
Vintage Considerations:
Many parts are obsolete and may require specialized restoration or fabrication; understanding of vintage electrical systems is crucial.
Heritage:
Harley-Davidson, founded in 1903, is an American icon in motorcycle manufacturing, known for its V-twin engines and cruiser motorcycles.
Evolution:
The Duo-Glide evolved from the Hydra-Glide (introduced in 1949 with telescopic front forks) and was the precursor to the Electra Glide (introduced in 1965 with electric start).
Distinguishing Features:
The 'Duo-Glide' designation referred to the combination of the telescopic front fork (replacing earlier Springer forks) and the rear suspension system.
Production Period:
1958-1964
Manufacturing Location:
Milwaukee, Wisconsin, USA
