I’m working on this ’38 Johnson LS-38. I noted 2 cracks in the iron ring on the inside of the flywheel. See pics. I do have spark that jumps a 1/4-inch open air gap. The ‘other’ end of cracked piece is attached to the flywheel at the magnet, so there are no ‘free’ pieces that will come off. What can/should I do about this? It is not going to be a daily runner, but I’d like to be able to use it occasionally. NABMD