What is the procedure for getting the high needle to back out. Something stops it and I am afraid to force it. There is a brass collar where you stick the screw driver in that probably needs to come out. When you have the carb apart there is a plastic plug above it. The carb is bogging and I know it isn't getting enough gas with the needle full CCW. I have had the carb apart a couple times and cleaned up all the holes I could find. New kit is next but don't like not being able to clean that high needle chamber. Oh I put a new carb on off another unit and it works fine. I got two doing the same thing.