E-flite Super Airliner DF ARF - Manual (Page 16)

  6. Solder a connector to the battery wires that
matched your battery connector. Plug the speed
control into the receiver. Plug the motor wires into
the speed control. Use the radio system to check
the operation of the motor. If the motor operates
in the wrong direction follow the instructions to
correct the problem.
Note:.Use.caution.around.the.motor.while.
testing.the.direction.of.the.motor.
  7. Test fit the foam motor nacelle over the fan.
Trim the foam using a hobby knife as necessary to
route the motor wires back to the wire channel.
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