When i crank my go kart it takes off whats wrong

Question

i dont hit the gas and its not hung help me befor i hit somthing

Answer 1

Assuming it has a centrifugal clutch, it sounds like the clutch is engaging too soon - are the return springs both intact?  Might they have overheated and lost their springiness?  

If it has one of those newfangled hydrostatic transmissions, does the control lever return all the way to neutral?  

Answer 2

I take it the kart is a no transmission type with a centrifugal clutch. The clutch could be an adjustable one that's too tight or one of the springs in the clutch could be off.