Yesterday I was out boating and everything was going great. I had started and stopped the motor severl times over the course of the day. Towards the evening I stopped for a while and when I went to start it again it just made a whirling noise. The starter was not engaging the flywheel. I tapped on the starter lightly with a hammer and it started right up the next try. I have a 1985 Evinrude VRO 90 hp motor. Was this just a fluke or will it keep doing this, do you think? I haven't had it do it again but I haven't started it too many times since. Is there something dirty that I can clean? Is the starter on its way out and needing replaced? If so, can it be rebuilt or do I need a new one and where would I get it?<br /><br />Thanks,<br />Dave Alfstad