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Thread: 15f cavitation

  1. #1

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    15f cavitation

    i installed the riva rpm kit on my 05 15f 100 hrs put the 14/21 prop now have cavitaion from the holeshot . is that prop to tall ? i ordered the worx grate for it to try and let it get more water from the holeshot will it help ? seems to get good top end gps 66 so ? am probably going to send in mystock prop to impros to get repitched if the grate dosent help ?


  2. #2
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    did you get the cone on right, and the pump seal making a good seal?

  3. #3

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    i will check the cone to see how it looks how can i tell if the pump is not sealed good ? what will i be looking for ?

  4. #4
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Quote Originally Posted by skamm14 View Post
    i will check the cone to see how it looks how can i tell if the pump is not sealed good ? what will i be looking for ?
    Make sure you didnt kink the rubber gasket around the pump where it slides in to the shoe or has gobs of grease on it.

  5. #5

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    well after looking at all that it looks good i changed my intake grate last night went to the worx one. i noticed a bead of silicone in side of there so i smoothed that out .

    1 question when i grabbed my driveline to the prop it had a little play is that normal? if not im sure my pump bearings must be going out were is the best place to purchase and is there just a complete kit or will i need to purchase each piece seperatly ?


    thanx for all the info

  6. #6
    you can get a complete pump kit from atlantic jetsports for very little money im in the UK and i get all my parts from them .i found them very helpful

  7. #7

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    well thank you very much parts ordered.jet ski unlimited is sending them out. i bought a take off pump today so i will be riding soon as i can

  8. #8

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    well the bearings in my pump were starting to go so i installed the new pump fromm macc-racing (15f take off pump ) and well no cavitation now to rebuild the one i took off and all good thank you for all the help .

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