OK,thanks for clearing that part up with me.Now,are you sure its a 30cc?The only reason im asking is i bought an engine from a guy that evryone told him it was a 27-31cc engine.I guess he thought he couldnt use it.I bought it after i asked him a few questions.I was the only one that bid on it.It was a BNIB sachs engine made in germany.2 rings,B&B specialties muffler,ect..production engine.Turned out to be a 61cc.The guy never checked for himself.