2003 gti le rfi one cylinder

[Tnorman211]

I bought a seadoo with a 787 earlier this summer. When I took it out it ran fine for a while then went through a no wake and when I went to take off it lost power almost like a limp mode. I was told it goes to one cylinder at idle so I assume it is getting stuck in one cylinder. It revs up to 3200 rpms and feels like it wants to go. Each time it does this is different. It could come out of it in 2 minutes or it could take as long as 15 minutes. I turn it off and on and try giving it full throttle and letting it sit idle. I am not an expert but would think the computer is not telling the other cylinder to fire after idling. Any where I should start looking for a fix or any thoughts would be greatly appreciated. Thank you

 

[etemplet]

Did you replace your spark plugs?
Check your battery voltage.

 

[Tnorman211]

I have not.. should I check the rectifier voltage

 

[etemplet]

Those are just 2 simple quick things to check and eliminate. These skis are sneaky. But yes you can check the rectifer output at the batter posts as well.

I'd love to understand HOW the ski runs on one cylinder at idle. I've read that it does. Is it cutting fuel. or spark I've hooked up my spark checker to both cylinders at idle and both are firing as far as I can tell. LOL I'll have to pull the plug wires on the next one I work on. I am always curious.

 

[Tnorman211]

Also don’t know if related but when I put the key in it beeps twice then a pause then 4 beeps

 

[etemplet]

If it keeps beeping 4 quick beeps over and over that is nomal. I got 4 long beeps on key insertion and a low voltage indication on an RFI. It doesn't mean it is the battery but that needs to be checked
. I had a wet computer that was causing the the beeps but mine didn't give 2 beeps first... I got 4.