Thanks guys,
JIm, the front carb will not idle, no amount of tinkering with the other or idle screws seems to help. It is just not producing an fuel at idle. The back carb responds just fine to a idle adjustment, the front one does nothing, even with the screw clear out of the hole!
Jon, I suspect the bore from the idle jet upwards. I have the copper plug out of the downward long hole and it is clear. I pulled all the plugs out of a damaged core I have last night looking to see how the fuel traveled. I figure it has to be at least at the idle jet for it run at all. After some yard work this morning, I will get back at it.
One more question Jon, where does the idle circuit get its vacuum to pull the fuel all the way up the bore and back down? Should there be a vent hole at the top of the bore from the idle jet going into the throttle bore? Seems this would let air in and not pull fuel up the through the tube, maybe its a rust hole?
