Thanks for all the tips guys. This one really kicked my butt, HARD. I have absolutely worn myself out tonight. I lost 5 hours because of this tonight. 5 hours I didn't have right before a GTG, lol.
In desparation I finally pulled a cylinder. The problem was right there staring me in the face. I'm actually kind of embarassed to admit what it was, but I've always been upfront in the past, so here it is. When making my cylinder gaskets, I failed to cut our for the intake area. I simply cut out for the cylinder liner and bolted it together. No wonder it wouldn't run! It couldn't get air or fuel!
Anyway I'm a relieved and happy man. New gaskets and it's back together and running.
The idle mixture is extremely sensative. I don't have it quite dialed in yet. It may have something to do with the AvGas I have in it now. Yes, another one of my desperate attempts to get it running. It's been my experience in the past that AvGas won't idle as well. But that's OK. This saw is just going to set most of the time. So I'll leave it.
In the course of my lovely evening I broke a recoil spring, recoil rope, had to replace part of the clutch, cleaned two extra carbs that weren't the problem, disassembled parts of the other two saws for inspection so that I could compare...... Yeah, it was a fun evening, NOT!
You can how fuel soaked it is, and the outline of where it needed cut out.
Here you can see the area that was completely blocked.
50% more HP than the 211!
