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  1. #1

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    Would a damaged pump vein cause excessive engine vibrations on 00' GPR 1200?

    Our 00' GPR is vibrating badly where the exhaust pipe meets the water box (that black rubber coupling) while idling and sounding like something rubbing but when at throttle the noises go away. I was thinking maybe the intermediate shaft or bearing somewhere in the rear... took it all apart tonight and found one of the pump veins has broken piece off of it.... before I remove the exhaust and look for other problems I thought I'd ask everyone on here first... should I keep looking or could this be my answer? Thanks!

    I've got photo's but can't seem to find the right picture button on this computer jiggy thing....
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  2. #2
    Nothin' runs like a Deere IowanGPR's Avatar
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    how does the prop look? can't see any damage from the pics you showed.

    how does it run in the water?

    how do the splines on the shaft look?

  3. #3

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    Prop is new, about 3-5 hours on it. As far as the shaft splines... well, its a 10 year old ski... I replaced a shaft last year on our other 1200lt and this one definately has some wear on it when compared to that. I'll get a photo or two and post them. The grease in the intermediate shaft looks dried out too... is there a special grease for this?
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  4. #4
    crashhard's Avatar
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    splines look good, mount mounts ok? if its that bad, check all the exhaust mounts.

  5. #5

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    Yep, I gotta agree... It can't be this easy!!! Crash, Whatcha got as far as the pump stators go? I got this 00' gpr off an ole boss man who liked to play in the salt water... I can't afford gas to go that far so I stay in the lakes round here.... figure I'll keep the new parts longer too..

  6. #6
    crashhard's Avatar
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    I have a few, nothing crazy with corrosion. Can get it shipped out asap. If you want it with the shaft ready to go, let me know. Thanks

  7. #7
    305coco's Avatar
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    i highly doubt the vibration has anything to do with the busted pump vein, ive had worst and didnt notice untill i removed the pump..
    check all the bolts that hold the pipe down

  8. #8
    Moderator OsideBill's Avatar
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    I agree with the others check all the stinger pipe mounts and the u-pipe mount while your at it.

  9. #9
    Haven't fallen yet. MJE's Avatar
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    I'm willing to bet the vein is causing excessive vibration...I'll play devil's advocate here.

    Bad motor mounts/exhaust mounts would be the 2nd thing I'd look into.

    cavitation = gay

  10. #10
    o uncola o's Avatar
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    How does it run out of the water? If it is still vibrating, it is not the pump vein.

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