Two Echos running CS 500VL and CS 300. One Homelite 330 not running and getting sworn at a lot when I try, though I have no earthly use for it if and when it does. I've been told by pros that here in NY, it's not a good idea to try to sell these older saws without chain brakes because there are liability issues, so it looks like the Homelite is here to stay, even if I get it running.
If the 330 doesn't run good and you can't figure out why, try looking under the carburetor at the rubber boot. They are notorious about wearing out. Not too hard to change but time consuming.