Whew, almost 6 hours since my last post..! I can understand someone getting a belly full of carburetor work & banging on it, too tedious for my liking..! My wife is trying to get the 2nd super tiny O ring on the mystery check valve, she just got it after 20 minutes of frustration... Good thing we had a carburetor to cannibalize; lost the original float hinge pin... Noticed the J/Y carb float hinge pin fits snug but on my carburetor it fits loose like the one we lost also fit loose... Must be the phenolic body keeps it from falling out, it's really loose... Had to put the needle seat in twice to get the correct shim for float level... In doing so, could not follow FSM instructions to grab it by A not B area, hopefully the needle will not hang up on a burr..? That might be why the J/Y carb needle seat would not open & close dependably..? The float adjustment was way off on it too, fuel level very high I imagine...

Thanks for Reading & Supporting especially solving the mystery, thanks geezer...