Winterize Jet Ski
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  1. #1
    PWCToday Newbie
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    Winterize Jet Ski

    Good Morning,

    I have a 97 Kawasaki Jet Ski that I am going to winterize for the first time. I want to make sure that this is the port I use to winterize with marine antifreeze. I have posted a picture. Any help would be appreciated. Thank you.Jet Ski.jpg

  2. #2
    Frequent Poster
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    Re: Winterize Jet Ski

    yes that's it

  3. #3
    PWCToday Newbie
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    Re: Winterize Jet Ski

    ok, Thank you.

  4. #4
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: Winterize Jet Ski

    No need for antifreeze on your Kawasaki.....

    Take the rubber cap off, and blow here with the air compressor while the engine is running. Rev the engine a little as well to blow water out of the water box. Monitor engine temp with your hand on the block, not letting it get too hot. Keep blowing/blipping the throttle, then kill with fogging oil in the carb(s).

    Done.....
    RCJS also doing business as WATCON
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  5. #5
    PWCToday Newbie
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    Re: Winterize Jet Ski

    Thank you for the response. Why no antifreeze? Everything I have seen is that people use antifreeze when winterizing their Jet Ski. It doesn't matter how old the ski is.

  6. #6
    PWCToday Regular guy48065's Avatar
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    Re: Winterize Jet Ski

    Blowing it out is a little tricky & a bit more work. You don't want to pressurize the jackets with 100psi so regulate it down to 20-30. Antifreeze is a shortcut and "safer" for the inexperienced.

    I use the same cheap little regulator & a few fittings to blow out my garden hoses, pressure washer, irrigation lines, and summer cottage plumbing all at once about this time of year.
    96 & 97 1100Zxi

  7. #7
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: Winterize Jet Ski

    Quote Originally Posted by LunatikOCR View Post
    Thank you for the response. Why no antifreeze? Everything I have seen is that people use antifreeze when winterizing their Jet Ski. It doesn't matter how old the ski is.
    You can use antifreeze, I am just saying it is not necessary. 98% of what you put in will come right back out on the ground. Your cooling system mostly drains on its own, and does not hold much water. You can blow it our clear, with the air compressor. It is quick, and easy. No need to regulate as guy below says......

    I am guessing you are watching video's on you tube from unqualified people who don't know what they are doing.....
    RCJS also doing business as WATCON
    608-743-1305 9am to 5pm CST m-f
    email watcon@watcon.com

    Please visit our web site

    new parts / products / services www.watcon.com
    thank you

    Please check out and like WATCON on Facebook

  8. #8
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    Re: Winterize Jet Ski

    pull ruber hose off bottom of chamber, its a rare chamber and they freeze crack a lot
    Last edited by jrddillon; 10-25-2020 at 07:17 PM.

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