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  1. #1
    Xl760 on the water/ gp760 in shop for paint
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    1995 Tigershark Cavitating

    Just wondering if there is anything I can do to stop my vintage shark from cavitating out of the hole. Before my riding season was over I replaced the wearring and removed a small ding in the impeller, I checked the clearance between the impeller and wearring they are well within tolerance but the ski still cavitates out of the hole and any speed under 5 mph at WOT.


  2. #2
    thesepaperwings's Avatar
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    May 2007
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    Do you have any mods? If the pump is where it should be then maybe an impeller with a lower leading edge.

  3. #3
    Xl760 on the water/ gp760 in shop for paint
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    Yeh ski is pretty much stock, the only thing that isnt is the .5 over when rebuilt. Maybe it is just how these things are, I was thinking about getting an aftermarket impeller.

  4. #4
    Tigershark u know u want 1 cucchiara3000's Avatar
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    You might need a new impeller or you might need a new wear ring. Is there a noticabe gap between the impeller and the ring.

  5. #5
    Xl760 on the water/ gp760 in shop for paint
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    Thats what I thought might be the problem tollerences being to great, but by the manual everything seems to check out ????? I did notice some wear on the stator but I didnt think it would be enough to cause this condition.

  6. #6
    Moderator Snoman's Avatar
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    Check your driveshaft bearing..If the seals are starting to go it will let air into the bearing causing it to cavitate..

  7. #7
    Xl760 on the water/ gp760 in shop for paint
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    Will do I never thought of that. Thanks

  8. #8

    Join Date
    Dec 2006
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    Charlotte, NC Lake Wylie
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    You can exchange your impeller for $25 with SBT for a reconditioned one. If yours is bent it will cause it to cavitate.

  9. #9
    Team RTYD burton9010's Avatar
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    Apr 2008
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    First I would check to make sure your pump is sealed in there good. I know on my old kawasaki 440 this was the problem. I also know that this is a common problem with tigersharks. Your best bet would be call impros and tell them what you have they they will hook you up with a good prop.
    impros.com

  10. #10
    bowsniper's Avatar
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    My Neighbor has a 94 Daytona. It just wont get on plane. Yu hear it rev up and nothing Justa lil spray out the back to get going like 5 mph. Thats it.had motor rebuilt,carb, impellor isnt perfect , So I filed it ever so carefully on the edgewhere it usally gets hit by rocks,lol and looked ok, wear ring tol is unknown but will check that along with proper sealing of the pump. any ideas???? could it really be the sealing of the pump? i hope so. my buddy possibly didnt seal it at all.
    Is there any sealant that is reccommended for this application?

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