Okay so I have a 90 SN 650 and when i went to start it up today it sounded like the starter wasn't engaging. It wasn't turning over the motor just kind of spinning or atleast that is what it sounded like to me. After a few minutes it decided to work and started right up. Worked perfectly when I put it away last and never gave me a bit of problem. So whats the deal? Is this something I should worry about or maybe a normal problem?