No instructions to tell me why two sets of gaskets were included. Would not prime at first.

Great value except that it does not have instructions. It comes with two sets of gaskets which were nearly identical so I was confused on which one to use. I gave it only three stars, because at first, it would not prime fuel into the engine. After at least 100 pushes on the primer valve and lots of frustration and disappointment on my part, it began to spray fuel into the carburetor and I was able to finally start my engine. Yay!

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