Had my Card Whiz running 100% (except for "Special" not working on kickout hole) and thought I would clean position #1 of score motor of built up gunk of 1A, 1B, & 1C accumulation......since then, problems! Should know better, but felt ambitious so now suffering consequences. I've had 1A, 1B, & 1C switch stacks off and switch dogs off several times inspecting and being certain all gaps of switches are good.....to no avail.
Now on start sequence everything starts as it normally except score motor stops short of where it should. If I manually rotate score motor to correct position (sometimes as much as 1/4 inch or many times just on the edge of position 1C going into the dwell) then everything works as it should. The Ball Return relay ejects ball over trough switch and ball 1 is in play. The slings and pop bumper score as they should (no score motor rotation). If I manually make the 500 point & 3000 point relays they score as they should. But every time the score motor rotates if manually pressing joker target instead of relay the motor comes up short (picture attached) of where it should and nothing on playfield works until I advance score motor manually.
I'm also attaching picture of Card Whiz motor legend and start sequence if this is helpful. Both switch dogs (1A & 1C) are in the short position as they should be as I took pictures before cleaning.
Can someone suggest something as a starting point?