I just came into a 1990 Sea Doo GT. It was last run on Lake Erie back in August by me. This has been a fresh water-only ski.<br /><br />It was cold-blooded back then, but once it was warm, it was ok. I just looked at the spark plugs and they are pretty dirty, so thats easy. It also made a funny noise, kind of a deep mixer kitchen mixer noise (impeller?) when running. <br /><br />In the next couple months, I'll be going thru it mechanically to get it ready for the Summer. Anything I should pay attention too?