Solenoid clicks but is not passing juice
This is good enough
If your saying your getting 12.1V when the key is released into Run, then this is wrong. It should have no voltage
In short from what I read is:
Have 12V on Red/Purple large post of slave
Turn key to start, voltage on small Yel/red stud and relay clicks but no voltage on large Yel/Red stud
Starter will turn over when manually jumping large studs on slave
Sounds like a bad slave solenoid to me
You got it,
I put my old solenoid back in and she starts.
Old solenoid has no marks on the terminals.
The new solenoid has an I and an S on the small terminals.
I connected the black/yellow NSS to the I side.
Maybe I had this backwards?