There are two models of 750... the 1411 is the "correct" one for your application, but there's a couple things I would have checked. First is float drop. Any carb that gets dropped just right could have a low float or two. Second is the step up springs. They are supposed to ship with the 5"Hg springs but I have seen the wrong ones in there before. Either of those two things being off could cause the issues you have. Heat is rarely a problem unless it's parked hot for an hour or more but doesnt cool down enough to need the choke. 10-15 minutes is not enough time for the fuel level (if filled properly) to evaporate that far.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
