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HomeRepair HelpExmark RepairExmark Lawn mower leaking gas Repair
Exmark Lawn mower leaking gas
If your Exmark lawn mower is leaking gas, start at the carburetor. The most common cause is a bad carburetor bowl gasket, especially when gas is leaking from the bottom of the lawn mower or directly from the carburetor bowl. Next, check the float needle, which should shut off fuel flow when the bowl is full. If it is worn or damaged, the carburetor can overflow and cause a lawn mower gas leak. A dried-out or missing carburetor gasket is another likely source of mower leaking fuel, followed by a cracked primer bulb. You should also inspect the fuel shut-off solenoid and fuel lines for seepage, loose connections, cracks, or pinholes. If those parts look okay, the carburetor float may be stuck open, which usually means the carburetor needs a thorough cleaning, rebuild, or replacement. Whether you are dealing with an Exmark carburetor leaking gas or general gas leaking from bottom of lawn mower symptoms, RepairClinic.com makes it easier to match the problem to the right part. Enter your model number on RepairClinic.com to find the exact carburetor bowl gasket, float needle, primer bulb, fuel shut-off solenoid, or other replacement part for your specific mower.
01 - Exmark Carburetor Bowl Gasket
If the lawn mower leaks gas the carburetor bowl gasket on the bottom of the carburetor might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor bowl gasket.
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02 - Exmark Float Needle
The float needle might not be shutting off the fuel. The float needle opens and closes the float valve to allow fuel to enter the float bowl. If the float needle is damaged, the carburetor will continue to fill with fuel until it overflows. If the float needle is defective, replace it.
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03 - Exmark Carburetor Gasket
If fuel is leaking from the bottom of the carburetor, the carburetor gasket might be dried out or missing.
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04 - Exmark Primer Bulb
Over time, the rubber of the primer bulb can become brittle and cracked. If the primer bulb is leaking, replace it. Don't try to patch or repair it.
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05 - Exmark Fuel Shut-Off Solenoid
Check the fuel shut-off valve for leaks, and ensure that the fuel lines fit tightly on the valve. If the fuel shut-off solenoid is leaking, replace it. In addition, inspect the fuel shut off lines for cracks or tiny holes. If a fuel shut-off line is leaking, replace it.
Highly Likely
06 - Exmark Float
The float might be stuck open. If the float is stuck open, remove the carburetor assembly from the engine and clean it thoroughly. If the cleaning the carburetor is not effective, either rebuild or replace the carburetor.
Highly Likely
Frequently Asked Questions
Why is my Exmark lawn mower leaking gas from the bottom of the carburetor?
Can a bad float needle cause an Exmark mower leaking fuel problem?
What should I check if my Exmark mower is leaking gas near the primer bulb or fuel shut-off solenoid?
Is it safe to use my Exmark lawn mower if it has a gas leak?
How do I find the correct Exmark replacement part for a lawn mower gas leak?
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