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Lawn mower carb.

GRA

Asked by GRA,

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GRA Contributor

GRA

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Don't know if this is the right forum to ask this question or not but--I've got a mower with a 20 hp. Briggs and Stratton engine. When I tried to start it , it was spitting gas out the top thru 2 small holes about 1/8" in diam. Took the carb. off, cleaned it, put it back on, and when turning over to start it still spit some gas out the top, but it started and ran. Increased the rpm a bit and gas stopped coming out the top and motor ran just fine. Would it be the needle and seat causing this? Float was ok. Thanks

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Surface Tension Grand Master

Surface Tension

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I would say that the needle and seat could be your problem or improper float drop.

Is your gas tank mounted higher then the carb?

If so then the gas will continue to run into the carb and eventually into the crankcase.

If you have a fuel shutoff use it at least till you get the problem fixed.

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