Thanks guys, those sites especially were helpful.I did not receive much with this engine only a pamphlet with engine breakdown on one side and a brief setup on the other.I will get back on it in a couple of days(I hope).I am using Cool power 15%,and a OS f plug, I think I read somewhere they (YS) recommended it.I tried Robarts fuel filler,and went to fuel dots,they seemed to do the trick for fuel lines.This is more than likely mis tuned by the previous owner.I believe I will have to start from scratch. I am not upset with YS,I also think they are exceptional or I wouldn't have bought it.I remember a old saying ignorance is bliss,but at 63 I'm not so sure. Thanks again John