This is really baffling me I installed the crank into one side of the crank case (magneto side) and then installed the new piston with small needle bearing attached. The piston crowns over the top most part of the jug at TDC I don’t remember it being this high before.
But what really concerns me is that NONE OF THE PORTS ARE EVER FULLY OPEN WHEN ITS THEIR TURN TO BE OPEN!!!
The worst offenders are the transfer ports that are open at a maximum of 50% of their total port area. Really?…50% why even design the port that big if you are only going to expose 50% of it.
Is something way off here or is this normal? I have forgotten what the port alignment was when it had its stock set up. However I haven’t done anything to it that would have changed or thrown off the port alignment. I bought a new piston maybe that’s it? I have put washers between the jug and the crank case to simulate the gasget that is going to go in so i know thats not it.
So you guys tell me WTF mate?