Motorcycle Repair: please resend answer, vacuum problem, plastic nut

Question
Mike
I apologize, but the email I submitted when I initially ask the below question was incorrect. So the answer for the below question did not come to me. Your second reply did.
Again, my apologies for wasting your time, it was not my intention. My mistake.

If you would not mind can you please re-send your answer again? I’m currently deployed in Iraq with Cco 2/504 PIR 82nd and will soon be home.  I wanted to fix this problem myself without having to put it in the shop and waist riding time and $$$.

1SG Villarreal

My question was:

Mike
I have 2003 night train; I had an after market Kuryahyn hypercharge air cleaner on it.
I put the original cover and air filter back on. Now, When I start up the bike using the choke to idle it, or warm the bike up. The choke knob gets, sucked back in when I turn the engine over.

Would this be a vacuum problem?


Answer
Look behind the choke knob and you will see a round knurled plastic nut. Tighten it a little and it should hold the knob out. Dont tighten it to much or it will break and then you will have to replace the choke on the carb
Good luck and happy riding
Mike