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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26288
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Combustion cylinder fills with fuel when mower is parked

Customer Question

combustion cylinder fills with fuel when mower is parked
Submitted: 7 months ago.
Category: Small Engine
Expert:  Curtis B. replied 7 months ago.

Caused by leaking needle valve and float in the carburetor. You can rebuild or replace the carburetor or use an inline fuel shutoff valve, in this fuel line from the tank to the carburetor.

Expert:  Curtis B. replied 7 months ago.

Can also cause fuel in the oil, so you want to check the oil to be sure it is not thinned from gas contamination.