I rebuilt the ball count unit on a Williams Klondike and now I get a random ball count. Usually it indicates 1 ball to play, sometimes it'll be 2, occasionally 3 or 4 or very rarely 5. Is there anything else I need to look at besides the ball count unit? Could it relate to the number of turns of the centre spring being too tightly wound(I wound it 5 times), also I replaced the 3 springs and they're a bit tighter. All the wiring is good and the coils too.

I wound the spring back to 3. The next few games started with 3, 1, 7 then back to 1 ball again. It's never started with 7 before, wouldn't mind that every time!

It counts down from 5 to 1, unlike my Gottlieb that indicates at startup ball 1 and goes to ball 5. It will indicate on startup 1 ball left to play usually, maybe 2 or 3 and as an add a ball machine it registers up to 9 balls to play but has only gone as high as 7.

It usually performs normally, but occasionally it will stick when manually advancing the stepper. I will check those pivot points, perhaps I've over tightened one of them. I'll let you guys know how I get on. I appreciate the help.

I'll try that, I've got some disk brake cleaner around her somewhere.