Jim I had a flywheel on a Kohler K181S 8HP that lost its magnets,I pulled the flywheel and the magnets had broken loose from the flywheel I got lucky cause they just moved together on the inside of the flywheel once they broke loose..I cleaned it all up and used JB Weld to reposition the magnets and it worked fine for a number of years then went bad again,one of the magnets disintegrated..I went on eBay and got another used flywheel..been OK ever since..we all take these older(but not really older)engines for granted-a lot of the old stuff is getting REALLY hard to find..thank god for eBay..so much of this kinda stuff got ground up and sent to China back in 2005 during the scrap steel price hike..