Echo 346 crank seal?

[Lark-o]

I Bought it as a non runner, A dirty carb was the initial findings. I did swap out the catted muffler for an older non cat muffler. I’ve been trying to get this saw tuned for a few days now. Sometimes runs perfect but Randomly acts lean off idle. Tilting the saw left right upside down does affect the idle slightly, but I’ve ran saws that did it worse and held a tune better. Any other ideas before I try to do crank seals? I’ve got a new primer bulb coming for it that I’m going to try.

 

[sundance]

I can't offer any ideas. Do really like my Echo 346 so I hope you get it sorted out. Keep us posted on what you find.