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96 seadoo, did i burn it up?

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sdngs

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need help or direction

Every winter when i winterize it i add a small amount of pink antifreeze to the heat sending unit opening (not sure what it's called, the center unit on top of the engine)

Bad luck starts here. Replaced the plugs, did a great warm test run in the driveway with the use of the garden hose, just as Ive done many years over. My daughter took it out on this great holiday and returns within 30 minutes or so. The thing was running like a dog and could barely get up to any kind of speed.

After some quick checking, one thing was very obvious the hull was full of water and the heat sending unit was lost in the bottom some where. I guess i forgot to tighten the unit..ugh!!

I finally got it driven up on the beach drained the warm to hot water, found and replaced the heat sending unit. It never ran good after that, it went from running good at times, to like a dog, to the point it wouldn't even start.

Finally got it home after a couple of hours and the first thing i checked was the plugs fully expecting the cylinders to be full of water, which none was to be found. Could that have been because of the time to get it back in the driveway?

Today i charged the battery all day, started, it ran for maybe 2/3 minutes the died. Checked the plugs right away, cold and wet. But i had no water shooting out of the plug openings when turned over without the plugs.

Could i have overheated this thing without the heat sending unit in it and causing something to burn up or crack? Or are the new plugs totally smoked?

Where do i start looking and checking? compression check?

help..

One other side note, the thing wouldn't start on the initial press of the button. It would sound like when i filled the cylinders with water. (fixed that issue long time ago, never leave the garden hose on with it running) It would start on the second or third try.
 
Well... that sucks.


Unfortunately... yes.. you could have overheated the engine. And, yes... let's start with a compression check.

Since the engine has been run... it should have purged out most of the water. Also, open the electrical box(s) and make sure everything inside is dry.
 
I'll pick up a compression gauge today and get back with you all!!

afraid, very afraid..

thanks!
 
Checked the compression 145/150 psi each side... now what about water in the lower end of the engine? Being the hull was full of water im sure that water probably went in the intake/carb.

I know how to get water out thru the spark plugs openings w/o plugs in. How would a drain the water out from the lower end of the engine?
 
Keep cranking it over with the plugs out, and be sure to hold the throttle open, I noticed when mine was swamped that helped push more out. Most importantly you need to get it running and warmed up to evaporate all the water that you cant get out from just cranking.
 
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