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  1. #1

    Kawasaki 650 water jacket block-off plate

    I had a water leak in the exhaust, so I took it apart and discovered that there is a very thin metal plate that apparently "blocks" the water flow between the smaller holes.
    I can't figure out why this is in there, it seems to me that better water circulation would occur if it wasn't there.
    Anybody have an answer?
    Here is a picture of the manifold and the metal plate I found in there.
    Click image for larger version. 

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  2. #2
    I am not sure what u mean by "a water leak in the exhaust"...Thats called a "gasket"...Water should flow thru the exhaust!

  3. #3

    I didn't explain thouroughly...

    Quote Originally Posted by Mulefoot View Post
    I am not sure what u mean by "a water leak in the exhaust"...Thats called a "gasket"...Water should flow thru the exhaust!

    The water leak was around one of the rubber flanges.
    That is why I took this piece off and discovered the metal plate.
    My inquiry is regarding the water flow being blocked by no corresponding holes in the metal plate.
    I don't understand why it is like this.

  4. #4
    .
    Last edited by Mulefoot; 05-10-2012 at 07:40 PM.

  5. #5
    steve45's Avatar
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    That looks like a factory gasket. Kawasaki uses small orifices in the gaskets to control water flow, but I don't see one here. If you take it out, you'll probably flood the exhaust system with water and it will probably flow back into the cylinders.

  6. #6

    Gasket

    Quote Originally Posted by steve45 View Post
    That looks like a factory gasket. Kawasaki uses small orifices in the gaskets to control water flow, but I don't see one here. If you take it out, you'll probably flood the exhaust system with water and it will probably flow back into the cylinders.
    Oh crap! Glad I got an answer.
    I was going to make a gasket with holes in it.
    Could have ruined my engine.
    Thanks a lot

  7. #7
    steve45's Avatar
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    You might buy a new gasket to be sure, I'm sure that it should have at least a small hole in it.

  8. #8
    Yeah it should have a hole.

  9. #9
    john zigler's Avatar
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    NO! it should NOT have any holes.

    water flows into your exh manifold, into your cyls, up to the head, then is injecjted back into the head pipe ( from the hose from the head).

    you do not want any holes in the exhaust gasket.

  10. #10
    steve45's Avatar
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    Good to know! Some of the others have small holes, but I haven't worked on a 650.

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