[BAracer]

So with the jumper removed, I get the following happening (although I have not tried the following with the jumper inserted)

With all three banana plugs connected to the Ninco jack, the neon light on the base glows dim, the car creeps along the track for 10 seconds and then the light goes out and the car stops.

With just the black and red banana plugs connected to the Ninco jack, the base light glows brightly but the car does not move with any trigger action.

With just the black and white banana plugs connected to the Ninco jack, full power is fed to the track and the car shoots off with no movement of the trigger.