thermal vacuum port question

[spoman]

I was checking the vacuum lines on my 88 festiva L. I think my thermal vacuum switches are bad. Are the thermal vacuum switches open one way or closed both ways when they're cold? When I blow through one side the air comes out the black cap, but the other side is closed until it warms up. Here's a picture so you know what I talking about:

vac2u.jpg

[Movin]

That is how they check when good. The vented side should go to the device.

[bravekozak]

Sorry, but I already sold mine. You, my friend, are a perfect candidate for a Weber/Escort upgrade. Do a search for all articles relating to this. Good luck.

[spoman]

Sorry, but I already sold mine. You, my friend, are a perfect candidate for a Weber/Escort upgrade. Do a search for all articles relating to this. Good luck.

If I had the money to buy a weber carb...

[spoman]

That is how they check when good. The vented side should go to the device.

The device being the either the charcoal canister or the FICB diaphragm?