Hello, Bill C. referred me to Pinside
As a young boy my dad sat on the glass. I saw him beat many machines growing up he was a good player. So this Williams Stop 'N' Go is family heirloom that is likely of the few surviving units. Most of these were sent to Europe.
Im looking for ways to repair the score motor that is caught in a loop when starting the game. (see video https://www.instagram.com/p/BzKLXlBHmyS/
I think its worth restoring, so any info to help that effort would be great.