Hey guys. I bought the simple cub with power pack B and I'm trying to set it up watching the guide on youtube. I connect the motor (Emax 2213-935KV) to the Emax 20A ESC. I then attached my servo tester to the ESC and then my ESC to the battery. The servo tester lights up but there are no beeping sounds from the ESC and when I turn the knob on the servo tester, the motor doesn't move. How do I test the direction in which the motor spins? Thanks a bunch.