Ultra 260x Engine problem 2009. Blow engine ?

[Kawa260x2009]

Hi,
I need your help guys. I am trying to figure what to do with my jetski. Ultra 260x 2009. I try to search but did't find anything.

Here is my story.
Bought it at 92 hours.
Change the oil in it. And hit the water.
Was going perfectly. Until i hit 106 hours.

Was coming out of a calm river. Was cruising on flat water at 65 mph on the lake.
And the jetski slow down rapidly. And start to make a anormal sound. Sound seem to come from the engine. So i stop the engine. Wait 5 min. Hit the start button. Engine start back. But it was not easy for him to run. Was running really rought. With big noise coming from the engine. After 3 seconds. The engine as stop by himself.
So i ve got it tow to the shore at really low speed.
At the shore. We remove the spark plug. And try to start it back.
Starter was unable to have the engine turn. Look like a seize engine.
Now i am at home. I check inside the spark plug hole. And it seem that the #3 cylinder have a small amount of water on the top of the piston.
No anormal water in the hull.
No water in the intake reservoir.
No Alarms

Ive took it out. And put a bit of oil in the cylinder.
Try to crank it up without spark plug. And the engine turn. But. Really really slowly with a horrifle sound. Metal sound. I only done it for 1 second. Sound was soo bad. But i can see the pistons moving.
Any idee ?
What do i have to do with this ?
Engine is dead ? Is it the crank problem that many have ?
Do i have to Overhauling the engine completely ?
Who do you recommend ? Can a 4000$ budget can be realistic to have it fix with upgrade ? Im north of the border. And not much of kawa specialist over here Everyone has a BRP.

I am new in jet ski world
Thanks for the advise.

[nicjak]

Did you remove the sc belt. Could be just seized sc

[Kawa260x2009]

Like I said.. I am completely newbie to this.. so, I did't not check for the S/C Belt..

So thanks.. I will check that out tomorrow morning or tonight if I have time..

Easy way to remove it fast .. Cut it ? Anyway.. if the engine is damage or SC is seize.. I will have to change it.. ?

or should I go with this how to ? :
http://www.greenhulk.net/forums/showthread.php?t=170761

[nicjak]

just loosen the tensioner...

[Kawa260x2009]

Thanks Nicjak...
It was like you said... I lousse up the belt..
and the engine crank perfectly...

so now ... I will make some research on seize S/C.. and I have to find a shop that will fix that for me..
Its just the bearing ? need a Overhauling kit ?

thanks
Mike

[nicjak]

you need to remove the s/c and look at the lobes, if the coatings are peeling off it needs replacing as an assembly. if not replace the front pulley and tensioner bearing.

[Kawa260x2009]

This is where I stand right now..

I remove the exhaust pipe.. I move the engine forward.. Tensionner is out.. and I saw that it was crack from sometime now..

To be able to remove the supercharger from its possition.. Do I have to remove the exhaust manifold ? or shoud I be able to get to the supercharger bolt without removing more stuff ?