Mixture control valve removal?

Has anyone removed this item with no ill effects? I understand kind of what it
does but why it only works off one carb does not make sense.

What are the pro or con of removing this part
that can cost like 60 bucks to replace?

FWIW - my bike didn't even come with one, and i went all over
the net asking if i really needed this expensive little item.
turns out the general consensus is the thing is more trouble than its worth.

You could always just plug the vaccuum line and see what
happens.  In my experience I have had to remove it many
times when we replaced the exhaust.  Mainly, this was done to
help control the little backfire type of pops.

That's pretty much what I did, except I stuffed
something in the hose (can't remember what). In my
opinion, diabling this part can actually improve
performance and cure various problems in many cases. I
did it to solve a backfire decel problem I was having.

IF ONE REMOVES IT WHAT TO DO WITH THE VACUM LINE FROM THE MANIFOLD?
TERMINATE IT? HOW?

Get rubber vacuum caps from an auto pats store.

Hold a piece of paper on front of it and rev the engine to 5000 rpm.
If the paper is drawn towards the MCV it is working right.
[check the service manual for more information.]