We know all that but with the bore scored they will not fire regardless of the compression. I haven't bothered honing PT's because there is so many thrown out everywhere, just pick up another one off the street. I hone the F/C's because they are getting harder to come across and they are a fantastic motor, I use them on slashers/ sidethrows. Not a kick out of them with my test carby, hone and new rings and they will fire straight up
Last edited by NormK; 28/03/22 07:36 PM.
