I hope this is the right place for this question. I'm just a homeowner trying to get by. The power line hacks came thru and left the usual mess. I was using my ms-290 to clean up what they left. The chain/bar started smoking near the end and I pushed it to get done. It was throwing plenty of oil. After it cooled down and I took the chain off ( which was sharpened earlier) the outer edge of the bar had a sharp wire like edge. What caused this and what did I do wrong? The bar is a little blue from the heat, is it toast? I always check that the chain is throwing oil before cutting. Thanks and don't beat me too bad.