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Does the fuel return line go from the bottom of the carb back into the bottom of the fuel tank

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The return line goes from the side of the carb that has the cover with the vent hole (metering chamber) back to the primer bulb (if primer bulb is external) and thru the bulb and THEN back to the carb. If the bulb is on top of the carb, then the fuel return is in fact coming from the "bottom" (metering chamber) side of the carburetor and to the fuel tank.

Posted on Jan 05, 2011


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The gas lines probably broke because of the ethanol-laced gasoline we have to use nowadays. It deteriorates them. If the unit has the external purge/primer bulb, the way mine did, it is not that hard. Just remember...the primer bulb "pulls" fresh fuel from the fuel tank to and thru the carb, thus pushing out any air/old fuel in the metering chamber of the carb back to the fuel tank in the return line...that said..
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The larger line out of the fuel tank connects to the longer nipple on the purge/primer bulb. This is the fuel return line.
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Go to a small engine shop and purchase about a foot each of the 2 different diameter fuel lines needed and install those new "Tygon" fuel lines as your fuel line replacement.

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line from the tank with the filter on it goes to the bottom inlet or( depicted inlet) on the carb the top is the return line that goes to the inlet of the primer the other side of primer goes to tank.Primer draws fuel thru carb to tank
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1 Answer

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you have 2 different length fittings on the primer bulb itself
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