What's the chance of getting a good seal out of a used metal head gasket? I can't get another 58mm gasket until early next week, and the kid is itching to ride. Cleaned up and copper sprayed help? I reused 2 stroke copper ones all the time. It was ran about 3 minutes. I need to add a thicker base gasket because the dome to chamber edge clearance seems to be just about zero and I'd like a few thousandths more than that
