[Cooper]

You may have to re calibrate both esc for motors with radio. Usually it is done by having model on then full throttle (track motors/esc) turn on radio wait for a beep (usually pretty quick) then nutral then full reverse. Will have to repeat for both. I'm not familiar with those specific esc but in general most programming of throttle end points are done this way. But it may go into program mode. Just remember to have full throttle forward before radio is turned on. I would disconnect anything not need just to keep it simple. Maybe have to google that model esc to check throttle calibration.