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Old 10-04-2018, 02:15 PM
tenders tenders is offline
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Originally Posted by joe_db View Post
Yes it can!
Yes, if the needle valve gets stuck in the "down" position (perhaps the float is mired in a bit of goo from vestigial fuel evaporate), or if there is a bit of dirt or worn-off rubbery coating preventing the needly part from making the seal, the fuel pump will happily fill the float chamber and keep squirting fuel around the tip of the disengaged needle valve and into the carb throat.

That's why tapping the carb can help dislodge the needle valve. I *think* some Seafoam in the fuel will also help dissolve the sludge, but it isn't clear it does this more any efficiently than just regular old clean fuel.
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