SBT Jetski Engines, Parts & Accessories

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  1. #1
    Joined
    Dec 2007
    From
    ohio
    Posts
    1

    Default winterizing Seadoo jet boat w/ 720

    I am a new 2001 Seadoo Jet boat owner with twin 720 Rotax engines. I winterized them, but am not sure if I did it correctly for I have been told 5 different ways. The part I am worried about is the antifreeze part.

    This is how I did it. I pulled the inlet hose off the head and put a funnel and hose on it. Then started engine and poured a gallon of antifreeze through it.

    Will this work? I was told I had to crimp different hoses off and about 4 other ways. Now I am concerned I did not do it correctly. Any info greatly appreciated.

    I was also told I could hook up a garden hose to a spot above the engine on the side and also pour the antifreeze in instead of removing the hose to the head.

    Thanks Rick

  2. #2
    Joined
    Mar 2003
    From
    SBT
    Posts
    21,551

    Default Re: winterizing Seadoo jet boat w/ 720

    Rick, antifreeze in the water jackets around the cylinders is the main concern. By adding it in with the funnel the first way you did it is good.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

  3. #3
    Joined
    Jul 2020
    From
    France
    Posts
    9

  4. #4
    Joined
    Jul 2020
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    France
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    Default Cryptocurrency News

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  5. #5
    Joined
    Dec 2020
    From
    Hong Kong
    Posts
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    Default Where is Administration shopsbt.com?

    Where is moderator?? I'ts important. Thanks.

  6. #6
    Joined
    Jul 2020
    From
    France
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    Default All about mining

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