I know this is an old thread but I purchased a 2008 Seadoo Utopia 205 with the two 4 tec engines. I get the loud beep on starting the second engine. The engines run fine without any issues. I am thinking that maybe this may be related to the battery voltage being drawn down when starting the second engine causing the currently running engine's module to complain.
Has anyone found out anything else about this?
Thanks