OK so got a 01 426 that is being a thorn in my side. It sat for about a year and when I got it I went through the carb and changed the plug and it fired up. went down the street and back and it was dumping coolant like mad and was popping and blowing flames out the pipe when I was giving it throttle. went back through the carb just incase and cleaned it again and everything was clean, pulled the plug and it was black so it was definitely running rich so I pulled the needle and dropped it 2 spots. I decided to check the valves while I was at it and valves all had 6 thousands + clearance so they all checked out so I buttoned it back up. fired it back up and popping and over heating right off the bat this time it was heating up bad enough to melt the plastic above the back of the pipe and the side of the mud flap. think I had it running 2 min for all this to happen so I hit the forms and found some posts with the same problems but no fixes that I seen. would the TPS have anything to do with the popping? is the popping the reason for the over heating? can anyone help me with this one? its driving me bonkers, any help is better than no help thanks in advance.