starter pinion gear turns but shaft is not starter pinion gear is turning the first gear on shaft but pinion gear at flywheel is not turning I see that on the the end of the shaft at flywheel there is a spiral cut on shaft which I think is supposed to send pinion out towards flywheel not sure if at the other end of shaft something is broken outer aluminum sleeve for shaft turns free but the shaft itself doesn’t turn. Looking at parts diagram didn’t help much as I don’t see a roll pin on shaft. It looks like there is a Allen screw next to starter mounting bolt not sure if that holds shaft or a bushing for shaft. Thanks in advance for the help.