spike60
Addicted to ArboristSite
Does the 562 have a hidden L needle like the 550 does?
All of the new ones do. If it came with the flippy caps, you can be sure you've got the magic screw in there.
The OP's problem could most easily be solved by plugging the saw into the diagnostic tool and hitting the reset on the fuel settings. (do NOT hit the master reset) There is an idle setting in the AT, and if this issue only rears it's head after idling for a while, then this is where you should be looking. If the tank vent was at fault, then you'd more likely be having an issue when cutting, not idling.