I got the ski this year used. I noticed it missed at little at first when started and running at slow speeds. First time out she was fine and I rode her for 2 hours. Next time out after an hour she started missing and died. the problem got worse and finally it would barely run and kept dying. 3rd time out I encounter the same problem. After an hour of running good, the ski starts missing a little, then a lot and won't run. I find if I let her sit for an hour she'll run fine again for 30 mins then it starts dying again. I've replaced the plugs but I'm thinking it might be a coil or spark plug wire problem. Maybe something is getting hot and causing the misfire. Anybody have an idea what could be causing the problem??

 

sure sounds like the coil isbraking down try to check the spark when it shuts down on you good luck

 

I thought it might be the cooling system so I cleaned it out this past weekend. The jet ski gave me a code this weekend. eng9 popped up on the screen and that code isn't in my service manual and I can't find it on the web. anybody know what that code means?