If you have the motor, your also going to need a non polarized capacitor rated at 250 volts or more. The value you need should be written on the motor. Usually they are around 0.5 uf ( micro farads). It goes in the hand paddle and is wired to two momentary contact normally open push button switches. Depending on which switch you push determines which coil in the motor is leading vs following (phase shift ) and that determines which way the motor turns. The capacitor and the windings in motor cause a time delay in the AC sine wave so depending on which coil is connected to the capacitor, determines which one is lagging behind the other.
As for the counter weight stuck on the shaft, after the soaking with penetrating oil and the torch didn't work, I think I remember using a block of wood against the weight and hitting it with a hammer, both up and down. That got it loosen enough that I was able to twist it back and forth and get it off.