I'm having a unique problem with the scoring on the two hole kickers. At the top of the playfield are two hole kickers that offer 500 and 5000 points when lit. The alternating relay controls these for scoring. When lit, both holes will correctly score 5000 points. But when not lit, they should score 500 points, any they do not. The left hole kicker will consistently score 4500, and the right will score 3500 points. All other targets score correctly as well as the drop targets. The WOW does score correctly and it does rotate through the drop targets correctly.
I think it is a timing issue. I've checked all of the score motor switch dogs and they are all positioned correctly. Your thoughts?

I thought I would ask before going further with this. "Steve" suggested that the motor shaft may have slight play in it due to a worn upper bearing. This could cause wobble and all kinds of timing issues could occur. Breaking down the score motor isn't my favorite thing to do.

Thanks Joe. I'll be digging into this today. What happens is when the ball is in the hole at 500 points, as it pauses to be kicked out, the score increases. With the 5000 points scored, the ball kicks as soon as points are registered.
I'll pull the motor board today and start work on the score motor. All of the stand up switches are gapped properly. Such an odd condition!

Well, it's not the score more shaft. It has no wobble to it. I did a complete teardown of the score motor and will re-assemble it this week.

I'll have to look into that. Too busy with "honey do's" these days.

Back onto this issue. I don't believe this is a score motor issue. I just re-assembled the score motor and checked all of the switches for normal operation. See video. https://flic.kr/s/aHBqjAFVRk

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Both "B" relay and "C" relay fire when the 500 point kick out energizes.

Yes, I thought the same, but they appear to be gapped properly.

Digging further on this, I found that removing the "F" relay by unplugging both Jones plugs, (WOW Control Relay), the 2 hole kickers score correctly. I have to manually operate the "Q" Relay, (Alternating Relay), to move the WOW feature to score both amounts at each hole kicker. "Q" is powered by "F".
Not seeing a short on the Jones plugs, but I'll tear it down again.

I found a 200 ohm short on the relay disc #A-8934. Nothing seen as an obvious cause. The fields don't look shorted. I ended up replacing the disc with an NOS one, and reassembled it. This did not resolve the issue.

Yes that switch is gapped properly and functions correctly as the cam rotates. I'll be trying to isolate this today.

I'll look into that.

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Motor 1C is functioning normally.

Resolved! Very odd condition though. I found the BLK-YEL and the YEL-BL-R rollover switch contacts were shorted. I gapped the switch and the problem is solved. Correct scoring now for the 500 point hole kickers.
But looking at the schematic, I'm not sure how the random points were scoring. (That "P" switch is on the Pop Bumper that activates the Pop Bumper relay)
Many thanks for the help JR, Howard, and PinballDaveH.
The machine operates 100% now.

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