Carbs not opening?

[DanTheMan]

Hey there,
when changing the air filter on my 06 baby Varadero, I noticed the rear carb was not opening, when pulling the throttle.
So i dug a bit further and found out that both carbs are not opening, even though the linkage was moving.
The carbs are not seized, i could move the slide manually and the bike was running when i last started it. (about 3 weeks ago)
Am i missing something?
Thanks,
-Dan

[S Barker]

It's a CV carb.

Have a look at this 

https://www.youtube.com/watch?v=IBFq9nHVmks

[DanTheMan]

It seems I was referencing the vacuum piston... Stupid mistake on my end.
Useful video, thank you very much.
Happy riding!
-Dan