Framer,
That is an older bike. Unless you are the original owner, you can't be sure if the cyls., pistons, and bore are original. To do it right, and only one more time, you have to mic the cyls., check them for 'out-of-round', and check piston clearance. If you're not capable of doing that, take the cylinders and pistons to a qualified shop...........................Bet you need an over-bore, and new pistons/rings to do it right.................Pay me now, or pay me later...................