Engines started running funny and would not idle right. I leaked her down and sure enough, it's at the case. I was suspicious of this one spot on the bottom of the case. Ever sense I bought the thing it has had some sort of hard sealant on the case where they come together. Big red flag right! I missed seeing the stuff at purchase but it's blown good every time so I forgot about it. Now it just bit me. Guess I'll pull her out a.s.a.p. and fix it right. I'm going through withdrawals.