I'm going to try boring an iron-sleeved cylinder on an old 125cc dirt bike - I've never done this before. I intend to put it on my mill and use a boring head and then finish it with a silicon carbide ball-hone.
My primary concern is how far under my target dimension do I bore so I don't go over w/ the ball-hone?
I'd hate to find that I've blown the final dimension after achieving the desired finish.
Is there a rule of thumb like X% under for every X inches of diameter?