Should've just done the 12v swap huh. Probably the way I'm going to go now.
I have seen a lot of threads on the 200 head on a cb. 8mm longer stroke, how do I deal with it? Stack base gaskets?
So, 80s xr200 head/cam setup, cb125 or 80s xr200 jug, and then bore the rod out 1mm to fit the 15mm...