My guess would me the cylinders, rings and pistons. I guess I will have to Google it and see what gets messed up. I have never put straight gas in a two stroke. I bet I know who did. The shop got it running but said it would not idle so they turned the idle way up. It just dies and I restart it now. But he said it could go completely any time. It is not like I use it everyday but I need it to work when I grab it. I usually have to get something done fast.
I rode a huskavarna dirt bike once. It was real nice. Maybe when I am forced to get a new one I will go with Husky. I got a deal on this one and it has been used and abused but it would still be working if I had not let someone borrow it. I don't feel like accussing him and getting into it over a chainsaw. He is a good guy for the most part. I just won't let him borrow any two stoke again