Lawn Mower Carburetor Leaks Gas

By

Monkeyman

06/17/2010

Could be the float or the needle that allows the fuel to come down is stuck open. Sometimes the float has a pin hole leak and it fills up inside with gas and opens the needle which allows all the fuel to come in the carb. The seat if it's worn down or dirty will not allow the fuel to shut off so it continues to flow.

I cleaned the carburetor and reassembled it. Then the mower started and I let it run for about 10 minutes.

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I have a Craftsman Riding mower LT1000, 42 in. cut, 2007 model. It is leaking gas into the bowl where the carburetor is. The gasket is sealing, it's not leaking out there.

I purchased a new "needle" and it is still leaking. I had asked them to order needle and seat, but they only ordered the needle. Do you think it could be the seat I need now?

By bren_bama

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RE: Lawn Mower Carburetor Leaks Gas

My guess its not the needle or the seat. It is more likely to be a faulty float. Remove the float and shake it, if it has fluid in it you need a new one. Otherwise the float setting is incorrect and it needs adjusting. You can check whether the needle is shutting off by hooking up a piece of tubing and blowing and at the same time pushing up the needle. It should close; just check the float would be my thinking.

rustyreks (09/26/2009)

By rustyreks

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