a tube that is open at both ends and mounted in bottom of carburetor float bowl. If float sticks or float needle does not seat properly, excess fuel flow out overflow tube rather than into throat of carburetor. Found on http://www.horizonsunlimited.com/gear-up/motorcycle-terms-and-glossary
a tube that is open at both ends and mounted in bottom of carburetor float bowl. If float sticks or float needle does not seat properly, excess fuel flow out overflow tube rather than into throat of carburetor.