the lehner 1930 and bk9918 esc

[RC-Monster Mike]

Hmm. I would try another battery as has been suggested, and perhaps another motor with that controller as well. If the controller is not getting hot, but the motor is, it may be under geared, but then it should have insane acceleration. What radio do you have? Is it possible that you have the throttle EPA turned way down? How about your connectors? There muct be something causing this situation. We only need to find out what.