I have a 2007 mule 610. It has always ran great. However, I am now having problems with it. It will be running fine & then all of a sudden it starts going dead. It may only do this once every ride and, then others times several times. I have had the carb. removed and cleaned, changed the fuel filter, changed the fuel pump, and drained the tank(which looked good). Please help...........dealer wants $65 per hour to work on it. I have a Son who is a great mech. It also at times will not crank after this happens, and other times it will.