2004 Challenger 2000 w/ 240 EFI Mercury - Need direction on issue

[spideyred]

Some background....about a year ago the oil level was low and the alarm went off. Filled oil tank with new oil and it seemed to fix the problem. Then had a few friends over and my son was not watching the tow rope and it got sucked up. I pulled to boat out of the water and took care of the rope.

Since then the 4 beeps every 2 minutes has been going off.
It won't reset. Oil level is good. Oil reservoir is good as well.
I checked the fuel water separator no water.

If I throttle full the engine sputters and coughs and the solid alarm comes on until I put it back in neutral.
I can gradually get the boat up to about 15 mph but any faster and the solid alarm comes on or engine begins to sputter again.

I have a friend that is a car mechanic and we have tried to research this problem. We think it is the fuel injectors.
I have replaced all of the spark plugs and some junk did come out when I turned it over without the plugs in.
I currently am running a can of seafoam through with new gas. I pumped 12 gallons of OLD gas out of the tank.

I need some help determining if it is the injectors. And if so...where can I find the diagram to have me and my friend do this ourselves.

Thanks
JG

 

[biffdotorg]

Try bouncing this off the guys in the Merc Forum. Much more help for your boat there.

Mods may be able to move your thread.

Good luck,

 

[spideyred]

Excuse my ignorance. Where can I find the Merc forum you are referring to?

 

[biffdotorg]

Excuse my ignorance. Where can I find the Merc forum you are referring to?

You are in the 4-tec forum which includes all the newer 4-stroke SeaDoo boats.

http://www.seadooforum.com/forumdisplay.php?62-Mercury-Powered-SeaDoo-Sport-Boats

Is for the Mercury powered SeaDoo boats. We all float around, but that forum will be more concentrated help for you from folks that may not frequent this forum as anything engine related does not apply.