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  1. #1

    Join Date
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    Water box failure 2004 GP1300R

    Just found (well hopefully) the problem on my ski where it would not pull past 1/2 throttle and would top out at 50. Well it would pull past this for say 2 seconds but would then bog down to about 50 MPH.

    2004 GP 1300R with all the normal sort of mods, VF3, 3 deg key, heads, 2005+ pump, EFI controller D plate, etc etc.

    Well as there were no error codes assumed that the problem was mechanical so checked compression and pulled the heads which were all good. So now the brain had to think a bit so pulled the exhaust and was wondering if it was a blocked exhaust. But as the ski had a D plate I could think what it could be. So I put my hand in the water box to check it and turn my hand uck black with 200 hours worth of oily carbon. From the pic you will see what I found.

    Has anyone seen this problem before?

    Looks like it was blocking the water box once the exhaust preasure got up and the lump of tubing worked its way to the outlet in the water box.

    The ski gets ridden in rough coastal waters, so has a hard life.


    One good thing is that I've had the Jetworks mod on for approx 150 hours and 4 years so the water box doesn't get flushed from salt water and no visable bad corrosion.

    Cheers

    Kev
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  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    My 03 did the same thing.

  3. #3
    Happily Self-Employed WFO's Avatar
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    I had an 03 with that too

  4. #4
    vomitspot's Avatar
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    now that that piece is out can you still run the box or will you need a new one?
    i think i have a 1200r box out back if you need one
    jason

  5. #5
    Hydrotherapy's Avatar
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    kev give me a shout if you get stuck for replacment,i was holding a 03 1300r back for a mod i was going to do and pretty sure i have one tucked away...
    but if i were you i would get a 1200 box fitted

  6. #6

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    which box is better 1200 or 1300? whats the difference?

  7. #7
    Mike xsockguyx's Avatar
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    Quote Originally Posted by vnmous50 View Post
    which box is better 1200 or 1300? whats the difference?
    here's a good thread on the differences
    http://www.greenhulk.net/forums/show...aterbox&page=2

  8. #8
    holy cow! hope the 08's don't do that

  9. #9
    vomitspot's Avatar
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    1200 box going in my 1300 now

  10. #10
    Hydrotherapy's Avatar
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    Quote Originally Posted by vomitspot View Post
    1200 box going in my 1300 now
    with a d plate and free flow you cant beat it

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