So it seems to cruise up until the 3rd to 4th transition. After I hit 4th and open up the throttle, it instantly hesitates and then dies. I know it has to be a carb issue seeing that the whole motor has just been gone through. The carb is stock as far as I know. It does spit out quite a bit of fuel from the overflow hose when I try to start it. Any ideas? I just bought it from a seller who said the motor was bored .02 and it has the XR's Only silencer on it with a K&N air filter. What should I look at first? I just want to OPEN it up with no hesitation.