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Old 09-26-2019, 10:17 AM
Dave Neptune Dave Neptune is offline
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Art, there are a few ways for fuel to leak out of the throat.

First and most common would be a stuck float. Do you have filters on the fuel line?

Second and not as common is a compromised float. That is a float with a leak that can hang down leaving the needle open. This will usually cause a flood of fuel not just a leak.

Third and not so common would be lugging the engine or leaving the choke on. An updraft carb running rich, with the choke on or lugging can cause a poor fuel mix and that poorly mixed fuel will stick to the walls on the way up only to leak back down as it is liquid and not vaporized fuel.

Only in a serious over-rich situation will the excess fuel stall the engine.

Do be sure you have a good spark too.

ANY CARB MOUNTED WITH A POSSIBLE GRAVITY FEED SHOULD HAVE A FUEL SHUTOFF VALVE FOR SAFETY!!!!!!!!!!!!!!! A good place to mount the valve is on the fuel pressure gage in front of the carb.

Yes an updraft carb can flood an engine!!

Dave Neptune
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