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  1. #1
    Hockey369's Avatar
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    Cavitation Issue

    I just started to take apart my ski to change my impeller since it was cavitating alot when i accelerate from a stop til about 10mph. My question is do you think the wear ring needs to be replaced also. Here are some pics of what it looks like.

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  2. #2
    mrbtd's Avatar
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    measure the gap between the liner and the prop with a feeler gauge

  3. #3
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    Quote Originally Posted by mrbtd View Post
    measure the gap between the liner and the prop with a feeler gauge
    +1, the maximum tolerance for this measurement is in the service manual.

  4. #4
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    On my 99 xll i had to install a pump plug kit to eliminate the cavitation...
    what kind of ski do you have?

  5. #5
    Hockey369's Avatar
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    I have a 99 GP1200, its in my sig. I bought a feeler gauge last night but didnt have a chance to use it. I found the clearance info in the manual...thanks for the help.

    By the way, should i see a difference between the solas j prop and the xo prop? When i bought the ski i was told everything was stock, but i found out it had a shredmaster ride plate and now just found out it has a solas j prop

  6. #6
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    The J prop is too big for a stock motor.

  7. #7
    Hockey369's Avatar
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    Do you think i will see some top end improvement with the xo over the j? I was surprised a couple weekends ago, my gp1200 with the shredmaster plate and with out anything in my sig cuz im yet to install them (in the process now), took my buddy's 07 RXP on the top end. Granted I only had a few gallons of gas left and he had probably a half tank. Im pissed I forgot my GPS that day

  8. #8
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    Something had to be wrong with his RXP, or your ski is as fast as mine. The J prop is a good prop for a ported motor, but will pull the RPM's down too much on a stock motor. The XO is the best for a stock GP.

  9. #9
    Hockey369's Avatar
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    Yea, i was thinkin something was up with his RXP. Mines no where near as fast as yours...although someday i hope it gets close. I was hangin with im all day long and our last long stretch back to the launch i was pulling on him, not by much at all though, but enough to get a boat ahead over about 1/2 mile. Lets hope this xo prop will give me something more, im looking to hit around 65 if possible before i do much to the motor....not sure if its possible though

  10. #10
    DAGO RACING CREW 97GPSLEEPER's Avatar
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    Get a baseline GPS number on it now. Shimming the plate and filling holes and a few other things will gain a few mph. I would like to see how fast a stock motored GP1200 can go.

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