I'm still fighting the battle and I think it is going to win. I'm beginning to wonder if the flywheel keyway in the crankshaft I bought could be off just a little bit causing it to be out of time just enough to kick back when trying to start it. I did figure out that when I shut the engine off if I will turn the gas off and let it burn all the fuel out of the carb then when I get ready to start the next time that It does not kick back. Maybe that is customary with an engine that is out of time, I don't know. I hate to tear the engine down again and replace a new crankshaft but I've about exhausted every idea that I can think of that could be causing this other than a mismanufactured crank. Does anyone have any other ideas as to why I would be getting the kickback other than being out of time and is there anyway to correct this other than replacing the crankshaft?