RE: Estarter Build Help
Early E Starters had the smaller motor with the smaller prop drive shaft. Grey plastic housing. Later ones use the 400 motor, bigger prop shaft, black plastic housing. Looks like you got the early prop for the smaller shaft. Go to the hobby shop and get the prop with the bigger shaft hole. Proper nut setup is to tighten a nut down to the end of the thread and tighten it good. Install the prop then two washers then the other nut. As said above, disconnect the brake. Also set the esc for slow start, makes it easier on the gears. Hope this helps.