No disrespect intended, but the secondaries vacuum pot pulls vacuum from above throttle blades through the main body. I may be wrong, but I can't see any other way for fuel to get to that diaphragm?
JMHO, at the very least I would blow all the passages out and rebuild the carb. However, often when fuel condenses back from vapor all the LP is gone leaving the heavier resins behind that solidify and plug passages, especially small passages. Failure to remove the resin (unplug passages) by boiling the carb (chemical soak), is the most common reason for unsuccessful carb rebuilds.