Thermoquad needs help

[Sean B <polecat2@xxxxxxxx>]

I've got a smog-free motorhome Thermoquad on my '64.  Runs awesome.  
However, there is no vacuum at all coming from the nipple on the 
baseplate that connects to the choke pull-off.  I even checked it with a 
gauge.  The choke pull-off works when tested.

Now the strange part:  When I spray carb cleaner down this vacuum line 
to try and clean it out maybe, the engine RPM drops.  So why don't I 
have any vacuum?  I also need the pull-off to operate the secondary air 
valve properly.

Thanks,

Sean


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