Sorry for the delay, had to go to Louisiana.
This one has a spring that pull's it shut.
If I open it by hand, with the suction side
connected it slows down the idle, and seems
to not run as rich. I think it is broken, but it
would have to be closed to choke the engine
to start when cold, and open as it warm's up.
Right? Do not know for sure. :baffled:
Thank you for all help.