Hi, just thought i would let you know that this same thing is happening to my daughters sunl 110 also, we bought it for her at christmas. Our mechanic at work took a look at it and said that it was the starter, when he opened it up it was burnt up. He thinks that low voltage is causing this. I have ordered a new one for it. If you see that it is not the carburator maybe you should have someone to look at the starter. I hope that we can get our sunl 110 running soon because my daughters patients is running out. lol

 

Well we had a mechanic look at it and it is a bent intake valve and indentation in the piston.Contacted the dealer,so hope we get it all taken care of soon.