97 seadoo GTI shut down wont start, spark, fuel all good

[mact18]

I either have one or two issues. The ski was running great and then about 3/4 throttle it just shut down hard. No sputter, nothing. Would not restart. Kept turning over, but absolutely nothing.

Got it on the trailer and made it home. Found the fuel filter was clogged. I still dont think this would cause the engine to shut down so quickly. Anyone have an opinion on this?

After cleaning out the fuel filter, it seemed like it was going to start. I hooked up the water hose to it, to get it to run and flush the salt water out. I forgot about starting motor first and turned the water on and flooded the motor. I read everything on here as far as what to do with that. I am pretty sure I have all water out now. I bought new spark plugs. I have good spark. I checked all connections. I tried a little starter fluid, it almost seems like there is a sensor or something that is shutting it down.

I looked at all these forums and it seems like people have this issue when its been sitting. Mine was running great and I was on the water the first time it shut down. I am not sure if I have the same issue or if its just now from the water in the engine.

 

[Coastiejoe]

You could have had two issues, but you have to figure it out as you now have residual water in the engine.

The metal inside the block is basically like new and unprotected. It rusts over night when water hits it. If nothing else, spray some oil in the cylinders and crank it over so the walls have some lubrication on them.

Also, you should never use starter fluid on a 2-stroke as there will be no oil (lubrication) going to the motor. A lean condition is one of the most deadly things that happens to 2-strokes.

Mix some fuel/oil into a spray bottle and use that instead of starting fluid.

 

[Minnetonka4me]

Sounds bad. More than likely something took out the rotory valve. The only way to fix a motor with a ground up brass gear is to take the motor completely apart. You can check it by taking the airbox off and stick a wire down the carb and into the intake area then spin the motor by hand and feel for the valve to hit it.

A spritz of starter fluid isnt the end of the world. Most have an upper cylinder lube built into them. Almost a nessisity when you have a wet motor.