I ran my new to me Stihl 034 today and was pretty impressed! I ran it hard cutting hedge, locust, hackberry, elm, and a few others. Burned a couple tanks with the 18" bar buried and it pulls hard. So the issues I noticed, the saw won't idle very long maybe 10-15 seconds; the other issue, when the saw is warmed up an hot it will only start if the throttle is held open. I am sure this is a carb setting issue. I'm thinking open the idle screw an 1/8 to a 1/4 turn and then try to adjust the idle speed screw. Other ideas?