I'm having a lot of trouble reading your background in post 50, which schematic is that?
https://www.manualslib.com/brand/wedico/
Or post up a better pic.
If i were correctly reading the wrong diagrams: Esc fuel tank is the top chrome one, Speaker fuel tank is chrome parallel to motor
I can't find any drawings with White wires going to motor? Looks like they come off black thing with white/green wires?
Fully charged 12v battery?
What happens if you *only* hook up Battery, Esc, Rx, Motor?
Now i think i see why people used to like to swap these Wedico electronics for industry-standard parts.