I just put new cylinders and pistons in my banshee and it had a coolhead on it and a buddy of mine put it together for me. well apparenty he didnt know what he was doing and put a o-ring in the wrong place and it boiled all of my antifreeze out and locked up. it started back up and run fine and i took the cool head off and put a stock one back on it for now and now it will only run on the left cylinder wide open ive switched the plug wires around and it still just runs on the left one i also unplug the tors and that didnt help either ... some help would be greatly appreciated.