Hey everyone. My 371XP is a awesome saw. It starts, runs, and idles great cold. Once you make a couple cuts and the engine gets warm or hot it won't idle. It will run like beast in the cut but as soon as you finish the cut and let off the throttle it dies. Had the dealer do a leak test and everything checked out fine. Put new plug in it and air filter is clean. Any thoughts on what it could be?