Hay STREETS thanks for ansewering , appreciate it. I don't want to seem ignorant but, I have looked ( and I looked agin when you ansewered last night) & I can't find one . After cleaning carb, It ran fine when I bought it ,starting to miss a little( and use ALOT of oil), awhile back so i figured I'd rebuild it before it got any worse. Just figured some one might know. Only # I have is the vin. off the title . I assume when I get to pulling it ( won't get to it any time soon ) there are raised numbers on the back? any suggestions ? I'v scraped and looked the whole motor over (But maybe I'm not holding my head right or I'm looking wrong way around? I don't know ) have any suggestions I'll sure listen.