I have an 97' Sea-Doo GSX that I just bought from this guy. Its not running like it should though so I am wondering if you guys can help me out. I just took it to the lake today and when I first got on it, it was going 45 mph. As the day went on it was only reaching speeds of 35 mpgh. I was watching the rpm gauge and it was very speratic. I don't know what the problems and I was wondering if you could give me some advice on what it might be. Also, I am trying to find some aftermarket preformance parts for it, but I have no clue what to get. Thanks for the help.