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  1. #1

    Join Date
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    cavitation..?? my turn.

    Whenever I holeshot, my rpm's bounce of the rev limiter a few times and the ski acts like a car with a slipping clutch. Once it starts moving it comes back fine and no other problems I can notice. Doesn't matter if I am in a straight line or a turn or whatever, whenever I go full throttle from a stop this happens. It is an '06 with original prop and wear ring but they look fine. My '05 looks much worse and it doesn't have any issues. Called dealer for advice and asked about engine alignment and they said that will positively not cause that. It could only be a wear ring. I have checked the mounts and they all look fine. The engine was out recently for a rebuild. I have read a few threads where people talked about cavitation and they were not able to get full rpms, but mine definitely bounces off the rev limiter 5 or 6 times before it starts moving.

    Thoughts?


  2. #2
    check the wear ring and another thing check your prop maybe a rock hit it and vent one of the wing and thats whats causing it if is not that check your alignment

  3. #3

    Join Date
    Mar 2013
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    Original wear ring I'd say the chances are quite high that is your issue. It can appear in good shape from naked eyed when its still installed, but the clearance span on it is very tight and hard to visually see it worn unless its really worn bad.

  4. #4
    From the time you nail the throttle, the motor bounces off the rev limiter a couple of times and then settles into a steady pull at say 7500 - 8000 rpm should take about 1.5 sec. I see it all the time on the loggers.

    My ski will do it in the early spring and in the fall. Durring the summer it skips the rev limiter a little.

    Hope this helps

    Andy

  5. #5
    twokexlv6coupe's Avatar
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    I don't think your eye is calibrated to measure .006"

    More often than not, cavitation is from excessive prop/WR clearance, and/or other problems with the prop/WR.

  6. +1 by:

    tpd

  7. #6
    Got Boost? psycho rxp's Avatar
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    Any mods done ?

    Change the wear ring first, and report back with RPMs

    Guessing original carbon seal, And bellows too?

  8. #7
    myown1manarmy's Avatar
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    Pull your pump and inspect your wear ring and prop your clearance should be about 1mm I think is specs

  9. #8

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    Quote Originally Posted by psycho rxp View Post
    Any mods done ?

    Change the wear ring first, and report back with RPMs

    Guessing original carbon seal, And bellows too?
    Yep, all original! I just ordered everything.

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