Milkyish Substance on Spark Plugs
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  1. #1
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    Milkyish Substance on Spark Plugs

    I pulled the plugs today and noticed a milkyish substance on the plugs. It’s obviously oil mixed something. Is this serious? What typically causes this? Any insight is greatly appreciated.
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    Last edited by roush611; 09-28-2018 at 09:39 PM.

  2. #2
    PWCToday.com Is My Home Away From Home SxiPro's Avatar
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    Re: Milkyish Substance on Spark Plugs

    fuel mixed with water. better get that fired up and dry your internals.

  3. #3
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: Milkyish Substance on Spark Plugs

    I'd guess head gasket.
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  4. #4
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    Re: Milkyish Substance on Spark Plugs

    Shucks... looks like I’ll have to go for a ride tomorrow

  5. #5
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    Re: Milkyish Substance on Spark Plugs

    You also still have your oil injection hooked up I’d get rid of that and run premix

  6. #6
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    Re: Milkyish Substance on Spark Plugs

    Quote Originally Posted by Mythenand View Post
    You also still have your oil injection hooked up I’d get rid of that and run premix
    How often do the oil injectors really go bad? Not having to premix is really nice. That’s really the only reason to go oil block off right?

  7. #7
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    Re: Milkyish Substance on Spark Plugs

    Yeah I’ve seen so many skis sit in the hot sun the oil tank builds up pressure and the motor fills up with oil when I️ get most of my sitdowns for cheap that’s what the problem is also do you have the crankshaft block off done

  8. #8
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    Re: Milkyish Substance on Spark Plugs

    Quote Originally Posted by Mythenand View Post
    Yeah I’ve seen so many skis sit in the hot sun the oil tank builds up pressure and the motor fills up with oil when I️ get most of my sitdowns for cheap that’s what the problem is also do you have the crankshaft block off done
    Negative... I have never heard of that before. I’ll check into it

  9. #9
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    Re: Milkyish Substance on Spark Plugs

    If you ever look into doing a 750 swap and look for a donor 750 ski I’ve had about two this past year with their motors full of oil which caused high compression I️ pulled them drained them smoked like hell at first but still ran good.

  10. #10
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    Re: Milkyish Substance on Spark Plugs

    Don’t mind, the dude is a child.

    Motors full of oil don’t have compression as oil does not compress. Additionally oil tanks are supposed to build pressure just as the fuel tank does, that’s why there is a one way check valve. Stop talking out your a$$ and go back to Facebook and learn the correct information.

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