I am basing my information that the pinch is gone off of the fact that i can pick the truck up by the pullstart and the compression won't hold up the truck. it flies to the end of the cord. That, and the fact that while running it today, i had 3 flame outs. After these, the motor was very hard to restart. Had to let it cool down in order to start it again. I brought in my kit, and then pulled the head. ZERO resistance at the top of the piston stroke! I took the motor apart when it arrived to insure no metal shavings were left from manufacturing and to seal it with RTV. The piston actually pushed the sleeve up out of the block, but not anymore.

 I hate that i am having so much trouble out of these motors...