Carb BB / ball bearing

I was soaking my kzs carbs in carb cleaner and when I pulled em out I found a little bb or like a ball bearing. I have no idea where it goes, does anyone know?

It’s a check ball. A small brass cylinder sits on top of it and held in place with a small clip. It goes in the fuel bowl at the front (filter side) See photo of parts

See red square for place in bowl where those parts go

Wow Mikaw, you really know your stuff buddy. I wish you lived closer lol. I`m just glad your willing to help others out just for the asking brother. Mitch

so I found where this goes, it is part of the choke assembly. but I've run into another problem after I've finished with the carbs. when I bought this bike, it had none of the vent hoses on the carbs connected to anything so does anyone know where they route to? it has a little T vent coming from the air switch (? is this what its called) running back to the carbs. I guess what I want to know is where these vent hoses should go to. I can send a picture of the carbs if I need to