The title pretty much says it all, Everything just seems weak,

I'm getting 28 volts from the transformer so I believe it is a low voltage problem.

The Voltage to the transformer is 120.1

Unfortunately I do not know the history of the game, I checked for voltage drop across the power supply fuse and the solenoid fuse and they seem fine. Yes the machine has been shopped. The lamps are all nice and bright. All the relays seem fine but everything else is weak, flippers, sling shots, pop bumpers, roto target. The score reels are working as they should, nice and fast.

Its not high tapped although I have considered it. I have not tried new sleeves although I do have some. I have several other late 50's gottlieb games that play very strong.

I do have the schematic. Let me make sure I understand. I should jump from the 25V tap on the transformer directly to each coil and see how the coil reacts?

Ahh, I understand. Makes sense to use the fuse. I will test and get back to you.

Rolf,

That was it!!! the jumper made it play like it should. So looking at the schematic I cleaned the switches on QB, SB and N. I then removed the jumper. It plays much better. just a few more tweaks and I believe it will be done. Thank you for your help.