Don,
I agree somewhat with Harry, in that I don't think the Ultrasonic cleaner is going to get down in the small passageways of the carb, but I don't agree with using a "wire" on them because of the possibility of scratching or otherwise damageing them. I still believe carb cleaner is the way to go, even if you have to put the parts in a tin can, spray or pour it on and let it set, and then dump the parts out into a metal kitchen strainer to drain, then flush with water. Also check the lable on the Super Clean. Something in the back of what is left of my mind says that one of the "cleaners" (Super Clean, Purple Power, etc,), is not supposed to be used on aluminum, but I don't remember which one.