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Discussion Starter #1
Has anyone noticed that the standard pumper carb has two valve openings? One is for the fuel line, I assume, and what is the other for? Would like to know as I plan to use the pumper carb and dont really know what the second component is intended for...
 

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It's a return line any time the pumper over pumps fuel it sends that fuel back to the tank
 

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To do it properly it should return back to the fuel tank.

You can T it back in front of the fuel filter but this will make it hard to prime
 
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