Leaderboard

I guess he's referring to the magneto stator / rotor? if it is, then the internal thread, highlighted in red takes a magneto puller, the shaft is tapered with a woodruff key to hold the rotor in place. one of these... you put a spanner on the flats to screw it in to the rotor and a socket on the end and screw it in, which then pulls it off the taper. the indent in the shaft end takes the pointed end of the device.