Strip down carb for chem cleaning

[cochise]

Can't figure out my issue of suddenly having to run with the choke on or it will miss on low end acceleration. No vacuum leaks ( carb cleaner spray and propane) tank clean, all hoses ok., wires and cables ok, I've had the tank and carb off about ten times (can do it all in about 5 min now) I'm thinking the pilot jet circuit has  got something in it. Although I sprayed a can at and into the carb and took out the pilot jet I'm going to soak it in a can of Chem Dip carb cleaner. It will destroy rubber and plastic so I'm trying to get it totally apart. Seen a parts diagram but not instructions how those plastic elbows come off ect. Anybody gone this route?