Carburetor Doctor supplied the kit. There is no metering rod in this Zenith. The needle looks good using a 100x microscope. I’ve cleaned the heck out of the idle passageways and can see light thru them but maybe there is something restricting flow. I can boil the castings but there is a ball check valve in the bowl casting that can’t be removed without damage. I have nothing to lose at this point though so I’m going to leave it in and boil the castings and hope I can flush out any water residue with carb cleaner and compressed air. I live in the boonies but will either install my backup fuel pump or pick up a gauge next time I’m in town if this don’t help.
