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post #3 of Old 07-25-2013
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Re: Engine almost stalling then recovering

My first thought when surging is encountered would be a vacuum leak somewhere. I'm not sure if the Atomic 4 has any vacuum lines or much of a breather system, but check. You could try listening around for leaks with a pipe, one end in your ear.

Other places for a vacuum leak would be inlet manifold gaskets, either manifold to block, or manifold to carb.

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