Re: Where does this go
Ok, went to look today, and it does connect to the air silencer.
The hose is about 24" long, connecting to the nipple you picture, and it routes to the port side of the engine, up behind the intake and port carbs, exiting sort of in front of the starter, and then into a hole next to the #1 carb position in the air silencer.
There is no fitting, it just goes into a hole.....and lays there.
This is on a 1996 200 looper. I know your air silencer will be different.
I hope this helps.