how to check if a VAM works?

[Keasbey]

any answers on this one?

 

[Bearded Forever]

http://merkurencyclopedia.com/EEC-IV/VAM_adjustment.html

It tells you how to check it with a volt meter.

 

[Stinger]

Unplug it while it's running...it should either quit running or change the way it is running...