Morning folks. The 260Pro pops on full choke, and starts on run, but then dies after a few seconds of running. I gave it a new piston and rings, new fuel hose and filter, new impulse line, and tried swapping the tank vent from another saw. Even tried a brand new Zama carb, and it still won't run. My mix is a couple months old, but it's e-free 91 so it shouldn't be bad. I'll mix up some fresh later tonight just to be sure, but what else could I be missing? I wonder if I tore the new fuel hose when I put it in? Hmmmm....