Voltage to Cold Start Valve Plug question
 

My cold start enrichment valve seems to have stopped working, I unplugged it this morning and the start up was the same as with it plugged in. So question is how to I check if the plug is getting current, I have a standard multimetre I just don't know how to use with confidence!

Should run the black lead to the plug pins (there are two) and the red to the battery positive terminal? And check the voltage (12.5v I think)?

Help. This may be a very simple problem to solve but I need help :)

Mike.