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  1. #1

    Exclamation Impeller fits too tight in pump on 1988 650sx should I sand the impeller or pump?

    Hello, I've got an 88' 650sx that I bought last week. After tearing everything down, I find that nothing was turning because the pump was locked.

    I sanded down the inside of the pump to ensure there is no corrosion there....looks clean. The impeller is a Solas KA-SC-A and it fits so tightly in the pump it cannot spin freely.

    I CAN fit the impeller completely down into the pump but it's just such a tight fit it can't spin freely.

    This is how the ski came to me, is it possible that's not the right impeller?

    The pump does not have a plastic wear ring like some skis.

    Should I sand down the impeller or the pump?

    Any suggestions would be great.

  2. #2
    Apparently the pump actually has a stainless liner on the inside, I thought it was all one piece. Over time, corrosion of the aluminum will swell the stainless liner, causing it to choke down on the impeller. They are replaceable. Problem solved!

  3. #3
    steve45's Avatar
    Join Date
    Feb 2008
    Can you get a replacement liner? Not available from Kawasaki, to my knowledge.

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