Hey guys new to site, Couple issues I have owned my xt for over six months and have an issue with very heavy deposits of oil on top of piston and due to this motor will not correctly in which is very hard to start. I am using correct ratio but still heavy deposits I've tried to lean out but runs to hot so switched back. After all this I ended up buying new motor changed over and started running into same problem, when I received motor I installed ran for a few weeks and ended up finding out KT was a 2 bolt pattern in which to me is a 23 or a 25 cc motor not a 30 which I ordered.