91 carb

I have a 91 fourtrax 300 carb that the float was sticking and leaking gas. So I took the carb off and decided to get a rebuild kit. On the main jet does the emulsion tube seperate to reuse with the kit? The video in the sticky I watched doesn’t say and I assumed it comes with the kit. My kit didn’t have the emulsion tube and the guy at the parts store says it doesn’t come with one and he wasn’t sure if the old one seperated or not. Help me out guys, thanks