Found a Gottlieb Hi Dolly. Owners put it in storage 30yrs ago when it stopped working and forgot about it. Fixed the roto target, soldered a few wires back on here and there and made a few adjustments. Needs new rubber and cleaning but works just fine and in dam good condition for 48yrs old. Cabinet was repainted at some point, but playfield looks really good and back glass is dam near perfect.

Heres the issue. When you start a game and try to add second player, the motor spins, the second player lights, then the reset bar clicks and it goes back to one player.

Interestingly after you drain the first ball, you can then add a second player and the game will play normally for two players but starting on ball number two.

Then at the end of a two player game, it will not reset unless you unplug it.

Everything seems to work just fine for one player operation. Im new to EM machines but im familiar with how they work. If someone could help me narrow down the areas I need to look at, I would appreciate it.

Yes, I cleaned them and it looks like contacts are lining up pretty good. But I will take another look.