Generator Leaking Gasoline – Inspection and Troubleshooting Guide

If your generator is leaking gasoline, follow the steps below to help identify the source of the leak and determine the appropriate solution.

⚠ Safety Notice:
Do not start or operate the generator if gasoline is actively leaking. Fuel leaks can create a fire hazard. Turn the generator OFF, allow it to cool down, and perform the inspection in a well-ventilated area.

Step 1: Inspect the Gas Tank

Start by checking the fuel tank for any visible damage.

Look for:

• Cracks in the tank

• Fuel leaking from seams

• Loose or damaged fuel cap

• Rust or corrosion around the tank

If the tank is damaged or leaking, the fuel tank may need to be replaced.

Step 2: Inspect the Fuel Lines

Next, follow the fuel lines from the gas tank to the engine.

Check the entire length of the fuel lines for:

• Cracks or splits in the hose

• Loose connections

• Improper seating on fittings

• Signs of gasoline residue

If any of the fuel lines appear damaged or loose, they may need to be replaced or reconnected securely.

Step 3: Inspect the Carburetor for Fuel Leaks

If gasoline appears to be leaking from the carburetor area, the carburetor float may be stuck open.

This can allow fuel to continuously flow into the carburetor bowl and cause leakage.

The image above highlights the carburetor float bowl, which is located at the bottom of the carburetor.

Step 4: Reset the Carburetor Float

To help reset the float mechanism:

1. Locate the carburetor float bowl (shown in the image).

2. Use a wrench or screwdriver.

3. Gently tap the side of the float bowl a few times.

This can sometimes free a stuck float or needle valve, allowing the carburetor to close properly and stop the fuel leak.

⚠ Important:
Only tap lightly. Do not strike the carburetor forcefully, as this could damage the carburetor housing.

Step 5: Check the Fuel Valve

Inspect the fuel shut-off valve (if equipped).

Make sure:

• The valve is not cracked

• Fuel is not leaking around the valve body

• The valve is fully seated

If fuel is leaking from the valve, the fuel valve may need replacement.

Step 6: Inspect the Fuel Selector Switch (Dual-Fuel Models)

For dual-fuel or tri-fuel generators, check the fuel selector switch assembly.

Look for:

• Broken selector knob

• Fuel leaking around the selector housing

• Loose fittings connected to the selector switch

If leakage is present, the fuel selector switch assembly may require replacement.

Possible Parts That May Require Replacement

Based on the location of the fuel leak, one or more of the following components may need replacement:

Fuel Tank

Replace if:

• The tank is cracked

• Fuel leaks from seams

• Internal rust has caused damage

Fuel Lines

Replace if:

• The hose is cracked or brittle

• The hose has loose fittings

• Gasoline is leaking from the line

Carburetor (Including Gaskets)

Replace or repair if:

• Fuel continues leaking from the carburetor

• The float valve cannot seal properly

• Carburetor gaskets are worn or damaged

Fuel Valve

Replace if:

• Fuel leaks from the valve body

• The valve does not shut off fuel properly

Fuel Selector Switch

Replace if:

• The selector knob is broken

• Fuel leaks from the selector housing

• The switch cannot properly route fuel

When to Contact Support

If you cannot identify the source of the leak after performing the steps above, please contact support and provide:

• Generator model number

• Location of the fuel leak

• Photos of the leaking area

• Hours of operation

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