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Leaking carburetor

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Cubwild

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It’s a very slow leak, right where the fuel intake hose meets the carb, I think. We’ve tightened up that blue fuel line fitting (and replaced the fuel line itself).

Is any leaking acceptable or should it really be about bone dry? I’ve flown my Cub a lot but not a lot of others so I can’t compare.

Oh, and can 100LL “cause” leaking any more than MOGAS?
 

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