I believe I had old gas in my waverunners, when I took them out, I would get up to 35MPH and the F-I error would come up. The wave runners would slow down to an idle and wouldn't go any faster until I shut them off and then they were fine up to 35MPH again. I went home and drained all the gas. I then put fuel injector cleaner in the tank and then filled them up with 93 octane. One wave runner ran better and the problem only happened a few times all day but it still doe's happen. The other one doe's it every time I hit 35MPH. Can anyone help?