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  1. #1
    100 MILES OF HEAVEN AND I AM SMACK IN THE MIDDLE KEYZBUM's Avatar
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    What pump to upgrade with??? gp1200r

    i read alot about "HO" pumps on the older gpr's for an upgrade..
    What year pumps,from what models??
    I did a lot of serching and reading about shaft length and I am lost
    Is there any year that would be a swap or do i need to swap shafts around with any model pump???
    i found a blown-up 03 fx140 in the driveway today ,,and the pump looks like the "good" ones i see for sale any thoughts????
    thanks guys
    mattman


  2. #2
    Moderated
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    if you want an HO pump you will need to use 2005 gpr spec pump part as thats when yamaha released the HO pump.

    i also reccomend getting the 2 inch spacer (2004 onwards i think) for the pump as well as it helps with hookup and improves top end slightly as well.

    you will need to get a 30 inch drive shaft as well as a few other bits.

    i think itzmunch has 2 HO pump setups for sale at the moment in the classifiedes section, pm him as they seem the right price.

  3. #3
    Moderator OsideBill's Avatar
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    Buy an 05 and up pump stator section and the tail cone for it, A new set of seals and then press your shaft out and press in the new housing. simple as that. no need to worry about driveshafts.

  4. #4
    Quote Originally Posted by OsideBill View Post
    Buy an 05 and up pump stator section and the tail cone for it, A new set of seals and then press your shaft out and press in the new housing. simple as that. no need to worry about driveshafts.
    +1 they work fine without the spacer.

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