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  1. #1
    sweetbats's Avatar
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    Sponson Leak repair

    Tried searching, but did not find what I needed.

    I've been fighting a leak for a few months. I replaced carbon ring, pump shoe, re-sealed most holes and re-aligned motor after aligning pump shoe.

    2 sets of questions:
    1) Sponson leak when 05 RXP is sitting still. 1 drop every 10-15 seconds.
    Will running at speed, turning, etc, cause that leak to either gain volume, frequency or both?

    2) what are the instructions for removing sponson bolts and resealing them? Do the nuts inside the hull stay in when you remove the bolts or do they require a socket on them?

    Thanks as always!


  2. #2
    SJL Custom's Avatar
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    There are brass colored studs through the hull that those nuts on the inside attach to. The silver bolts on the outside that hold the sponson are what you want to take off. They apply silicone around the studs that go through the hull from behind the sponson.

  3. #3
    sweetbats's Avatar
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    SJL, thanks for the reply.

    Does anyone have knowledge on the leak volume as I mentioned in the original post?

    thanks!

  4. #4
    Having Fun jp1300r's Avatar
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    You know some guy put a picture up a while ago that was a broken sponson stud. So if you have one of those break, you could have a bigger leak when turning instead of just sitting in the water.

  5. #5
    SJL Custom's Avatar
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    The brass colored studs that go through the hull are pretty thick and would not snap before one of the smaller silver ones on the outside. My hull would fill up just under the supercharger inlet in a 18hr span. That's with 4 leaking. It doesn't get any worse when riding because the sponsons are usually out of the water

  6. #6
    Having Fun jp1300r's Avatar
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    I could find the picture, but it was a broken sponson stud. Believe it or not.

  7. #7
    Having Fun jp1300r's Avatar
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    Found the pictures of the broken sponsons stud. There is lots of water pressure on the sponson esp when turning. Not saying this is his water leak for sure, but is possible.
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  8. #8
    Bob 1tommygunner1927's Avatar
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    Remove the sponson after unbolting the 5 silver torx bolts. Remove the factory applied silicone and re-silicone around the brass stud, re-attach sponson. I had the same problem and the bilge pump would turn on about every 30 minutes or so and pump out about a gallon of water. Leak fixed.....
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  9. #9
    sweetbats's Avatar
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    Thanks, 1tommygunner. I sure hope this solves my problem. I am running out of options! Thanks.

  10. #10
    David 1 FAST VE's Avatar
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    Thats what happened to me years ago and it leaked quite a bit!

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