I've tried every thing rebuilt motor new and rebuilt clutches clean carb pretty much replaced every thing but the ignitor or coil it runs at a low rpm then after about 10 to 20 minutes of putting around all the sudden it takes off and runs absolutely great you can tell it has a ton more of rpm I have a ground from battery to the engine to as soon as I let it sit cool down then its back to a crawl and no rpm I've tried every thing I can think of I've check fuel pump carb compression leak down etc. this cart did the same thing before I rebuilt the smoking motor its like the timing isnt advancing Someone please help
