Can someone give me a good description of how the fast idle unloader works? What it actually does and when it's supposed to get vacuum? My understanding is that it has linkage to pull off the fast idle cam from the throttle linkage.
Does it allow the throttle plate to close to the idle position?
What are its vacuum sources? Are there any check valves or solenoids upstream of its vacuum lines that regulate the thing?
thanks for any help you can give me.
I'm trying to understand my carb better because it's doing some funny stuff.