I bought a used Baja Warrior 200 and when I first got it, had a little problem with it, but after it was left running for about 5 minutes would work just fine. It ran completely out of gas, was filled back up, now will not run after any length of time, nor will it crank back up immediately after idling for a few minutes. The oil seems fine, as well as the fuel filter. It just kind of sputters and then dies any time the throttle is turned.