Silly question Mr. Iron horse, I guess you're spinning the advance timing by hand, to see how many degrees it rotates?
I continue to mess with my mechanical advance system. Yesterday I tig welded some steel "shims" onto the stop tabs, to reduce the distance the weights will fly out. I am now using a dremel grinder to reduce the thickness of the shims until I've got it right.
I've been screwing with this setup for the last few months. The brand new XS650direct replacement for $75 didn't solve the problem of advancing too much. Gluing with epoxy shims to the stops did fix it and a few weeks ago it ran better than ever, then the snow came...
I've already peened the little pieces of the weights each did reduce slop