Originally Posted by stan2004:
Following video with sound may help. The engine starts in idle. Pressing the DIRECTION button starts it moving Forward. I suggest something around 10V as shown so the engine doesn't move too quickly. Pressing W-B-B-B locks it into Forward and you hear the double horn blast confirmation sound. The button timing can be tricky. If your battery is good it will retain this locked-in-forward mode through subsequent power cycles.
Unlock it to normal operation by pressing W-B-B-B...or the W-B-B-B-B-B reset. In either case you should get the double horn blast confirmation sound. Whether setting or resetting this feature, I suggest around 10V so the engine is not moving too quickly. In my experience the engines detect short W and B button presses more reliably at slower speeds.
I will try again after watching this. Thanks so much.
I tried Z 1000 and z 4000 but maybe I was running at higher voltage and could not get it to take. I never got the double horn blast.