This update pictorial will focus on the wire harness swap.
Plus, a few issues found on solenoid assemblies, during rebuild.
The outhole assembly ball kicker pivots on a shaft that is pressed into the main assembly base, well, over time the press fit loosened, and started to pivot, so the kicker would try and try to get the ball to the shooter lane, but never had the strength.
These types of issues cannot be found, except during a full teardown, clean, and rebuild.
Same situation found on the pivot arm of the Subway Big Kick assembly.
Both issues repaired with JB weld, which will hold forever.
In both cases, excessive grease/oil applied over the years had dried, and acted as a bonding agent, causing the moving part to apply torque to the fixed pivot point.