"Taping" - There's a pretty picture. (Couldn't resist)
You meant "tapping", right?

1. Put slips of paper in all 6 of these switches
2. Verify that the tapping->motor move problem is gone.
3. Then remove them one at a time until the tapping->motor move problem returns.
4. Report back which slip of paper made the difference

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Check the 16 switches on the 4 drop target banks

If the Hold (R) relay doesn't activate at the very least briefly when you reset the game, Inspect and diagnose this circuit with Alligator clip jumper wires
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features

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If the motor doesn't stop turning, which of these switches or relays is stuck closed?
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It's hard to be sure from the schematic and manual, but it appears that the three motor 4D switches should be open when the motor is at rest, which should keep the Reset Completed VR relay from staying activated at the end of the reset sequence.