Magnet has lost its pull...no cracks. This is a Wico flywheel. Anyone know if the magnet can be revitalized? Part is NLA. Anyone out there parting an old 15?<br /><br />S/N 225581501, 1989<br /><br />Flywheel part - old #:688097, new #: 200-820665A1<br /><br />Thanks,<br />Ed.