How to set air adjustment valve
I am unsure how to correctly set item 45 on the attached drawing. The WSM indicates the throttle begins to open at 3500 RPM. I take this to mean under this the valve is closed. However when reinstalling the plenum the throttle disc has 12 degrees stamped on it. This makes me question if this means set to 12 degrees rather than full closed below 3500 RPM.
Thanks in advance.