A little update on the carb rebuild here. I adjusted the idle mixture screws and the idle setting screw according to what I found on the internet. It tends to surge at startup and act kinda wonky after it's warm.
I was talking to an old timer about it and he said this:
Gently seat the Idle Mixture Screws again like you did before (tighten them till they're just barely seated). Now unscrew them two full turns. Start the engine and make sure the choke is wide open. Turn each screw in 1/2 turn at a time until the engine rpm starts to drop. Then back them both out equally until you reach the highest rpms possible. LEAVE THEM THERE.
Idle Screw: Now just adjust the idle screw (by the spaghetti) till it's where you want the RPMs to be. That's it. Purrs like a kitten.
I'd trade the entire internet for a handful of old timers with great stories.
