Where heck does this bolt onto?

[Adshed]

So I had the carbs sitting disassembled for a while, and cannot find where this guy mounts anywhere!

http://imgur.com/xR0VkFp

Cheers,
Adshed.

[The Buddha]

Look for matching both hole pattern on bottom of the float bowl.
What it does no one knows.
Cool.
Buddha.

[Sandgroper57]

Bottom of the RH float bowl. Holds a cylindrical black plastic thingy with rubber lines attached.
I have no idea what its purpose is.

[Adshed]

Awesome, thanks guys!!