My initial vote, based on the evidence presented, is a bad condenser.
Second vote would be a leaking fuel fitting between the tank and the pump, Jerry's test should find that.
Before doing anything else, I would change the condenser.
Jon.
Good carburetion is fuelish hot air The most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes! The Carburetor Shop
