Hello i have a 1998 gp1200 , it all started one day after a trip to mexico and had capsized and sucked water into the carbs some how. we got back to dock and all the carbs were wet . I had cleaned out the carbs and got it running fine. when I had gotten home I was flushing the system out one more time and then it started to rev out of control , nothing worked to kill the engine (kill switch and stop button would not shut it off) even pulling all the spark plug wires did nothing it ran like a diesel screaming. I took it to yahmaha and they just said get new carbs. I had a friend that could fix the carbs and noticed some rust he cleand it all out and we bought a carb rebuild kit that he did as well. I put them back in and it reved up fine but wouldent idle . I took the jet ski back to Ridenow to get it dialed in, Its started out great but suddenly then reves up like mad very inconsistant. dont know what to do and I know the carb are extremly clean.