[Richard]

I cant help you with color matching but a bit of info and a voltmeter may help you sort it out. The solenoid has two pull in modes. One is extra strong and energized when the starter is engaged. The other is normal pull and engaged when gen y is running. Disconnect solenoid from wiring. Use ohm meter on your meter and confirm black is ground. There should be very little resistance when measuring black wire to ground. Now when ohming the other two solenoid wires, the one with lower resistance will be the strong pull circuit. Great. Now measure the voltage on the two wires that were connected to the solenoid. One of them
Should only have voltage when the starter is engaged. Tie
That wire to
The high pull wire on the solenoid.

Sounds like the two wires are backwards.

Edited. One of our EE gurus, gently corrected me on which wire was which. I appreciate the correction. I love this forum because of the way the members treat one another.