You don't need to count the turns out on the main jet, only the idle/mixture screws. That (pin) only goes into the throat of the carb and is known as the emulsion tube, you definitely need to take it out and make sure that the tiny holes along the barrel are cleaned out or it won't operate properly. And you only need to replace the jets if they are blocked (unclearable without damage) or visibly corroded.

I’ve never rebuilt a carb without using any carb cleaner or compressed air. And I always clean the outside before I open it up. Take that immulsion tube out and clean it.

i did'nt see you clean the fuel bowl

The small bags are for dummy’s not to pour it all out and lose the small parts

Scary isn’t it!!

I’ve never seen anybody rebuild any carburetor without using carburetor cleaner. Good video otherwise.