I probably should have stated.., popped on the second pull and fired on the third and like my other saws that I use, I let it idle for a minute or 2 before throttling it up and put it 'to the wood' before opening it up all the way...
One thing I do find interesting and that is, it exhibits very little exhaust smoke and the exhaust does have an interesting odor, quite unlike normal mix. I ran the saw for years on regular gas (pre ethanol) and regular Stihl pre mix oil in bottles and when I pulled the muffler last time, years ago, there was little to no carbon buildup in the exhaust port then and the USDA spark arrestor screen (which I always retain on all my saws) was pretty clean as well, but this saw spent it's 'professional' life running balls to the wall anyway.
I'm sold on Echo Red Armor 50-1. It might be expensive but the saw not only runs excellent on it, but it idles perfect. It didn't idle on weasel pee gas at all and Red Armor bottled oil.
Guess I don't have to tear it apart and replace the crank seals for a while even though I assumed that after 40+ years of existence I would. An antique that runs like a raped ape. I do have to get a new chain drive sprocket however, the original one is about shot.