Sorry all. I haven't been online much lately. It's a 1987 Trac Olympic, and it's got an oil tank, so it mixes on its own. I haven't had it very long. I'm having the guy who sold it to me take a look at it tonight. I hope it's nothing major. Also, another problem it's having is that when I first start it up, I really have to choke it, and sometimes it wants to bog out and dies. It seems to lose some power as well when it's doing this. I think it's just a dirty jet or carb.