Just bought my 2006 Seadoo Utopia 205 with twin 155's. They told me an oil change was done and the boat was used for 10 hours before I bought the boat and I used it maybe 2 hours. The oil looks like it hasn't been changed in two years. Ok that's not the big challenge. Just did an oil change on both engines. It went fairly smooth. Now when I start the engines, engine 1 or the right engine.... the check engine like it on. Wasn't on before. Oil level is good and nothing else was done to the boat yet (spark plugs). Can anyone shed some light on this. I checked everything and no wires got pulled, everything is as it should be. Sorry for the rambling and thanks for your help.