1991 25 hp Evinrude help...

[Airslot]

Hey guys. *Looking for a little input on my 91' 25 Rude for the skiff. *She runs great but won't idle just right. *I'm thinking something along the lines of a bad crankcase seal because at idle she'll sneeze, but not through the carb. *The sneeze comes from under the flywheel. *The usually happens when it stalls, or casues it to stall. *Runs like a raped ape above idle. *Any ideas? *Think I'm on the right track? *Skools....?

Edited to add...she's got a fresh rebuild on the carb and fresh gas.

Airslot