Hey guys it's been a long time since I've been on this forum I've been out of the hobby for several years and just got back in.

I just finished refurbing a Gottlieb King Pin and I am left with one problem that I can not figure out.

The drop targets reset perfectly every time you start a new game absolutely perfectly without a problem..... but when you finish knocking all 10 of them down within a game they don't fully reset. The coils fire, but it seems like it's not strong enough to lift all 10 targets and only three or four will usually stay up.

I looked at the schematic but I just can't figure this out. I'm still not great at reading schematics.

I don't think it's a mechanical issue, because they reset flawlessly on a new game start.

I think it's an electrical issue, maybe a different path when they reset during a game??

Thanks for the advice. I went thru all those switches and seem fine....and now its not resetting perfectly anymore upon startup. Maybe it was just coincidence that were working perfectly yesterday and now they're not?

I'm beginning to wonder if its not mechanical. When all the targets are up the coil linkage moves very freely, but when all 10 targets are down, its significantly harder to manually pull in the plunger by hand to get the targets to stay up.

It looks like you can adjust the coil brackets to maybe increase / decrease the stroke? Would moving the coils closer/further away help?
What about greasing the drop targets?

This is really frustrating me...its got the original drop targets and they do seem to have been greased in the past....

One other thing, there are two fuses at the top of the pf for these coils. One of them has a wire connected to each terminal, the other only has one wire on it, but I dont see any wires coming from the loom thst would need to be connected...is this normal?

There's no sign of another yellow wire...is it possible that the lug of the one fuse holder should be soldered to the yellow lug on the other,?

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ok, so i did solder it back...on new drop targets working 100%....during the game still inconsistent resetting.

Checked, cleaned, gapped the switch on motor 2c, also the brown/yellow wire on the "s" relay and the "e" relay.

Dont know what else to try...what about the switch on the drop target bank that closes when all 10 drops are made...could it be something in that path??

Thanks to all...I think I have it working. In addition to going through those switches, the two fuse holders should in fact have been soldered together at the end to 'share' the yellow wire.

I also cleaned the coil plungers and sleeves and adjusted the coil bracket to slightly increase the throw. Got very consistent results last night....hopefully when I go back to it today it will still be working!