mean while i keep running my old modded saws. seriously man, get your old shit out and rebuild it. i got saws over 30 years old start and perform every time with out fail. this new day is ridiculous.
My oldest saw that's in the truck daily is 14 yrs old. Ran it half day yesterday rather than stopping to file new one. I think you would like the adjustable carb 661, just a plain old carb saw but much smoother on the elbows than rubber mounts