So, I just finished getting my go-kart set up today for me and the kid. Started great on the second pull. We took it for a couple spins around the yard. As we pulled back up to the garage, it died. I figured it ran out of gas, cause I didn't put that much in, but when I checked, it had gas. So we let it sit, went in and had lunch, went back out 20min later and it still won't start. I haven't pulled the plug to check for spark yet since the engine is still hot and I don't feel like accidentaly burning myself, but its brand spankin new!!!! I checked the oil, just to make sure, but it is still full. Checked air filter too and of course its clean cause we didn't go that far. Any ideas guys?