there is a switch on the outhole relay that runs the score motor. has it been cleaned , re-gapped , and checked , and wire connections checked?

is the outhole relay staying pulled in or does it drop out right after it pulls in?

Is there a self hold switch on that relay? if so, it aint workin. or, it is being canceled too soon. find out why. can you manually activate that relay? does it hold for the motor to run? or let go right away?
What happens if you manually short the outhole switch? does the relay lock on?

I have a Stampede also that everything works but the Ball Count Stepper. It is not getting power to the coil. I manually move the plunger and it advances as it should. It does reset to the first ball after I restart the game after manually advancing the stepper. I have cleaned all the scoring motor switches and checked the gap but you still play the game forever on Ball #1. Any help would be appreciated, I am still a novice but learning.

Here's the circuit that controls the Ball Count step up coil. For no good reason I'd start by checking the switch on the Extra Ball relay.

Pinball (resized).png

Thank you, I am just getting back to this machine as I worked on a couple of my other pins and Summer got in the way. I will try your idea.

"For no good reason I'd start by checking the switch on the Extra Ball relay."

Thanks Howard R. You found the issue. It was a switch on the Extra Ball relay. I had cleaned and adjusted them but they needed a finer adjustment. Thanks everyone for their help on this issue.