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  1. #1

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    Water in hull 300x

    Hi there!
    I always have some(alot of) water in my hull after each ride, while my friend have the same ski and has nothing. Where shall i start looking, it only "fills up" when driving not when the engine is off. Is it possible to see anything if i remove the sadle and plastic at the back and run it in water?

    Any tip/tricks?
    Kawasaki ultra 300x


  2. #2
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    Front hood latched but not latched tight maybe? Adjust the pin down a bit if its loose

  3. #3
    nicjak's Avatar
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    split hose check all the water hose connections on the oil cooler, head and s/c

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  5. #4
    "just sayin".. jetdave56's Avatar
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    Most important..

    Is it hot or cold water?
    If it's hot then one of the output line hoses that has cooled the engine or oil cooler is leaking or an exhaust leak damage hose or loose clamp..

    If it's cold it's probably not a cooling line depending on the leak as you would might have gotten a overheat warning but check cold hoses anyway , so your bilge area might just have debri and check the bilge hoses clearness and tiny vent hole on bilge white spit pipe and debri on the bottom of the hull that be obstructing water from traveling back to the bilge..

    I notice no matter how much rough it is and how much water goes over the top of the ski,she is pretty bone dry other than a 1/2 inch in the valley under the engine..

  6. #5
    nicjak's Avatar
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    the internet wont find your leak but i can assure you, you will have one. check all the hoses and exhaust manifold/collector gaskets they usually only leak under high pressure so dry the hull out remove your seat and base, find some flat water and ride it. ive had split hoses on the oil cooler/head and gasket leaks on multiple skis some leaks are hard to find. some have used go pros in the hull to find leaks.

  7. #6

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    Also check your shaft coupler/bearing assembly. I've seen a few with cracked rubber, and water quickly gets in. Usually easy to diagnose by putting garden hose water in your hull and looking for water coming out where the shaft exits the hull above the intake grate..

  8. #7

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    Thx alot for helping me! The water is hot, and i get some saltdeposits in top of the engine, so i suppose its coolingwater from engine. What hooses are those? I dont have any leaks when filling up the hull.

    Is the coolingwater (out) from the IC Hot?

  9. #8
    Aussiepauly's Avatar
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    As Corey said check all hoses and the exhaust riser gasket, I just replaced this gasket last week which was leaking and also a hose split/melt (hose from rear of engine to front of oil cooler, goes under intake manifold) only 40 hours on the ski another mate with same hours had the same problems
    Last edited by Aussiepauly; 06-26-2015 at 03:29 AM.

  10. #9
    fx160's Avatar
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    Take the seat off and go for a ride
    It may be easy to spot
    It may not

  11. #10
    Take the time to smile sirbreaksalot's Avatar
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    Concrete boat ramp.... Leave ski strapped to trailer and run the ski up to load it up.... This way you can pressurise the system.... Have the tail section off so you can see the leak .

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