I'm pretty new to jet skis, this 88 JS550 is my first. Just the other night I tried to start it and had no spark. I checked the stater specs and it was way off so I took the flywheel off, and where the flywheel sits on the crank, there was some damage. It almost looks like a really crappy welder tried to weld the two together, or some sort of electrosis happened. The seal is fine, so it wasn't caused by it getting too hot. I have no idea how this occurred, so if anybody has any knowledge about this I'd really appreciate a reply.