Gale Model 5D14 Outboard Motor Specs & Overview

Produced by Gale Products—a division of the Outboard Marine Corporation (OMC)—the Gale Model 5D14 is a classic 5.0 horsepower twin-cylinder outboard motor. Built as a budget-friendly yet robust alternative to contemporary Johnson and Evinrude models, Gale outboards shared many high-quality mechanical components with their OMC siblings while offering straightforward engineering and dependable performance on the water.

The 5D14 model is particularly desirable among vintage outboard enthusiasts due to its versatile full gearshift (Forward-Neutral-Reverse), compact size, and modern-style twist-grip throttle control paired with a remote fuel tank setup.

Key Technical Specifications

• Model: Gale 5D14
• Horsepower: 5.0 HP @ 4,000 RPM (O.B.C. Certified)
• Operating RPM Range: 3,500 – 4,500 RPM
• Cylinders: 2 (Alternate Firing)
• Displacement: 8.84 cubic inches
• Bore & Stroke: 1-15/16″ Bore x 1-1/2″ Stroke
• Powerhead Type: 2-cycle, 2-port alternate firing
• Gearshift Control: Full Forward-Neutral-Reverse (F-N-R)
• Gear Ratio: 15:26
• Starter: Automatic recoil/rewind starter
• Carburetor: Float feed with high and low-speed adjustment needles; automotive-type choke
• Speed Control: Synchronized spark advance and throttle twist-grip control
• Ignition System: Built-in flywheel magneto
• Cooling System: Combination displacement and centrifugal water pump with rubber impeller
• Propeller: 2-blade, 8″ diameter x 7-1/4″ pitch
• Fuel Capacity: 4-1/4 gallon separate remote tank (approx. 4 hours runtime)
• Weight: 51 lbs (excluding fuel tank)
• Transom Height: Designed for standard 15″ transoms

Maintenance & Restoration Guidance

Restoring or maintaining a Gale 5D14 is a rewarding project for vintage boat enthusiasts because parts availability is relatively strong through standard OMC interchange channels.

1. Ignition System Service:
The flywheel magneto system uses dual ignition coils, points, and condensers under the flywheel. Original green armature coils on these OMC-built motors often develop cracked epoxy insulation over time, causing intermittent spark or complete failure once warm. Inspect and replace the coils with modern epoxy-molded replacements, set the breaker point gaps to .020 inches, and replace old spark plug wires.

2. Cooling System & Water Pump:
Never start a motor that has been sitting without inspecting the rubber water pump impeller first. Old rubber blades harden, set, or disintegrate, sending debris into the cooling passages. Replace the impeller with a fresh unit and clear any dried salt or mineral buildup from the water jackets before test-running the engine.

3. Fuel System & Carburetor:
The float-feed carburetor features adjustable high- and low-speed needle valves. Disassemble the carburetor, clean out old varnished fuel, and install new packing washers around the needle shafts to prevent air leaks. Inspect the float—if it is made of shellacked cork, replace it with a modern ethanol-resistant synthetic float or re-seal it with fuel-proof epoxy.

4. Lower Unit:
Drain the gearcase lube and inspect it for signs of water intrusion (milky oil) or metallic particles. Replace the drain/fill plug washers and refill with quality marine outboard gear oil. Ensure the shift linkage is adjusted properly so the gears engage cleanly into Forward, Neutral, and Reverse.

2-Stroke Fuel/Oil Mixture Advice

Because the Gale 5D14 relies on internal bushing bearings typical of 1950s OMC powerheads, it requires a richer fuel-to-oil ratio than modern outboards.

• Recommended Fuel Mix: 24:1 ratio (16 oz of oil per 3 gallons of gas, or 2/3 cup of oil per gallon).
• Oil Type: Use a high-quality TC-W3 NMMA certified two-stroke marine oil.
• Fuel Selection: Use 87-octane non-ethanol (E0) gasoline whenever possible. Ethanol blends can degrade vintage rubber fuel lines, fuel tank seals, and carburetor packing washers over time.

Note: Do not run this motor on modern 50:1 lean mixtures. Inadequate lubrication will result in severe wrist pin, crankpin, and bushing wear on these vintage powerheads.