applianceguy
+1y
+1 what emjay said. Check to make sure the choke is opening. That wire that was hanging there is important to the opening of the choke plate. It connects to a socket inside the rear of the alternator. Use a flashlight and a compact mirror to see behind the alternator.
The Choke will not open until that wire is re-connected!!
It sends a low DC voltage (7 volts?) to a choke heater, so it does not open immediately, but slowly to allow time for the engine to warm up. (There is a graduated cam on the carburetor throttle to keep it engaged, until the engine warms up.) At normal engine operating temps, the choke should fully open, after you throttle it from idle.
If you get the choke to operate properly.., and it still runs like crap, then most likely, running it that rich has caused the cats to become melted/ clogged.
If your exhaust sounds like a Potato in the muffler and you get really poor throttle response from idle, and no power..., well then your exhaust cats are clogged. It will run for awhile, but if the exhaust gases are not emitting, then it causes a vapor lock/type condition.
On both of my B's I just remove #2 cat and then use a big pipe to hollow it out. Then run the bjeebers out of it w/out anything where #2 cat was...,to clear out #1 cat. (It does not hollow out #1, it only burns out all of the carbon and anti-freeze accumulation from overheat/head gasket failure) When you feel as though it has burned out all the crap.... , and you haven't gotten pulled over for excessive noise, then re-install the hollowed out #2 cat, and run it like that until you can get the new replacement one welded in.
It should be a very noticeable improvement in how it runs and sounds. If not, find out what the prob. is B4 installing the new cat, or you could ruin it, if you still have a too rich condition, or anti-freeze in the cylinders.
They sell the weld in #2 cats cheap on e-bay. I paid only about 60 dollars for each one and they were name brand close-outs. One was a Flowmaster and the other was a Cherry Bomb.
100% improvement in how they run.