I got the 2000 working today after scraping and blasting about half a lb of pure crud out of it and cobbing together a fuel line system. It'll need another disassembly and better soap and water, etc, cleaning though, I was trying to beat an approaching T storm to see if it would run or not. It did. No idea on the carb, I just ran them both out 1 turn and small change and started yanking, once there was some fuel in there it came to life pretty readily. I goosed the idle up just a bit, didn't put the bar back on it yet, and only ran it for two minutes. It smoked a little, then cleaned up. The muffler screen looked fine. The carb spits a little at idle. Not a lot, but I noticed it. I don't see any markings for high or low though, with the screws, so I don't know yet which is which. I forgot to note which model walbro it is, apparently they used two different ones and the screws are reversed in order.
What I don't understand is what that little double barbed connector in the handle is for. I mean, I got one from another saw and used it, but it doesn't fit into the hole (or maybe I wasn't pushing it in hard enough..). I used it just for a splice so I could reuse two shorter pieces of line I had. Can't you just route one long piece? The IPL shows it as needed, but this saw had nothing in the way of a fuel line when I opened it up, just a short broke off piece in the tank with the filter. Is that just a safety feature, to keep the hose from rubbing where it routes through the hole?