Nice Ken - Be certain that the port edges are not sharp.
They look like they are good to go but verify that just to be sure.
It's hard to tell from the pictures.
I made that mistake once and had a piston ring shatter
on the sharp edge of a transfer port after building up an
entire Kawasaki 100 from scavenged parts back when I
was about 12...I remember thinking:
"What the hell just happened? oh well, it's still running so it can't be that bad."
