My On30 2-4-4-2 sound works fine when I advance the throttle, but the engine doesn't move.

Any suggestions?

Hunt, this is SEA1109 under a new name. My request wasn't clear. Of course it's an 8-pin plug.

I've done dozens of Tsunami installs. And I can identify the pins on the 8-pin plug, but which one goes to the red wire, black, gray, etc?