Update:
I never have taken muffler off to inspect it since videos...
As I was shelfing it the other night, a black something, presumably a screw fell out of it. I took starter cover off and I seen the coil all sucked over to the flywheel. I never loosend,tightend or checked the coil hold down bolts. Aparently the lower coil hold down bolt vibrated loose and snapped off in the case. This case was already a welded half that was right in the area of that bolt and it is now cracking again. I have a case half now on the way from a great friend here on AS and this saw is about to get tow` down to bare bones again..... practice practice. I don't think it will take me long to do it this time around.I am waiting til parts arrive to strip it back down and will update sooner or later. Hope by saturday.Have a safe week.