kaw 650- what happens if pump not siliconed
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  1. #1
    PWCToday Regular
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    kaw 650- what happens if pump not siliconed

    Hi, Working on a friends '88 650 sx. Need to pull and replace pump a couple of times with water tests in between. I'm not going to go through all the crap of siliconing the pump in and then cutting it out for a 20 minute ride. What can I expect the ski to do because of no silicone. I'm assuming cavitation. Will it at least move a little? That's all I need for these test runs. Thanks.

  2. #2
    Resident Guru Masonboswell's Avatar
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    Re: kaw 650- what happens if pump not siliconed

    It will go, just really bad cavitation. If you have a rubber strip you could lay in there or some weatherstripping it might help.


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  3. #3
    Attention ***** PWCToday.com Is My Home Away From Home JonnyX2's Avatar
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    Re: kaw 650- what happens if pump not siliconed

    It may or may not even move. I have had extremely bad cavitation with just a small chunk missing...I can't imagine it without any sealant at all
    Quote Originally Posted by Firebird A/C&Heating View Post
    OMG.....Rules for 550 vintage ski class...550 ski riders do not conform to any kind of rules. That is why you are riding a 550 ski in the first place. Rules suck....
    PS...the rule book will be in my 550 pump
    Quote Originally Posted by WB1994
    Listen , stop your cryin' , its only an X2.

  4. #4
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    Re: kaw 650- what happens if pump not siliconed

    Wanted to update this thread. Took ski out with no silicone. Don't know why but smooth as glass and no cavitation. Had full power and ran great. Don't understand it but ain't complaining. Job done. Not touching it again.

  5. #5
    Resident Guru Masonboswell's Avatar
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    Re: kaw 650- what happens if pump not siliconed

    Nice!


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  6. #6
    Attention ***** PWCToday.com Is My Home Away From Home JonnyX2's Avatar
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    Re: kaw 650- what happens if pump not siliconed

    That is a very rare outcome, glad it worked out for you.
    Quote Originally Posted by Firebird A/C&Heating View Post
    OMG.....Rules for 550 vintage ski class...550 ski riders do not conform to any kind of rules. That is why you are riding a 550 ski in the first place. Rules suck....
    PS...the rule book will be in my 550 pump
    Quote Originally Posted by WB1994
    Listen , stop your cryin' , its only an X2.

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