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  1. #1

    2006 gp1300r dplate question

    I was given a R&D dplate, but have been reading that the Riva works better on the 1300. I know I can have the r&d opened up like the Riva, but how necessary is it to do that? What kind of difference am I going to notice between the two? Thanks for any imput that you guys can give.


  2. #2
    Moderator OsideBill's Avatar
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    You will get higher RPM's wit the Riva, the difference if you measure from the largest part of the radius to the flat is .100" so you can remove that from the flat area and have the same thing, or find someone to trade with.

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    WATER WOODY's Avatar
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    The R&D opens to 0.210 to match the opened RIva.

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    Moderator OsideBill's Avatar
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    Quote Originally Posted by WATER WOODY View Post
    The R&D opens to 0.210 to match the opened RIva.
    Talking stock ones here Woodster. I agree on a ported 1300 you want to open it more.

  5. #5
    Quote Originally Posted by WATER WOODY View Post
    The R&D opens to 0.210 to match the opened RIva.
    Dohhhh, maybe 2.100 Woody?

  6. #6
    (I agree on a ported 1300 you want to open it more.)

    I dunno Bill, my 1390 has the stock little bitty one in it = 84.4
    I tried several oversize plates, the smaller i went the happier my motor was.
    As EVERY ski/engine combo is different, results may be different also..
    Testing, Testing...

  7. #7
    Moderator OsideBill's Avatar
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    Quote Originally Posted by rossnemo View Post
    (I agree on a ported 1300 you want to open it more.)

    I dunno Bill, my 1390 has the stock little bitty one in it = 84.4
    I tried several oversize plates, the smaller i went the happier my motor was.
    As EVERY ski/engine combo is different, results may be different also..
    Testing, Testing...
    I went back to a stock Riva in the ported 1300 it revved a little better but lost some bottom end.

  8. #8
    I just got the r&d plate out of the package, and it measures a 2.068. For best results on a stock gp1300r with a power filter, will be to cut it to 2.10?

  9. #9
    WATER WOODY's Avatar
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    You guys kill me .

    Yes,i have tested my non ported 06' with a stock R&D D plate against an opened R&D D plate.


    RPM was the same ,so was the speed.Ok,with the opened D plate the ski had better throttle responce and pulled a little harder.Tests were done on a Sat. morning and Sunday morning (the next day) at the same time,same temps,same fuel level etc......

    As Ross stated,every ski is different,you must test your own.

  10. #10
    WATER WOODY's Avatar
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    Quote Originally Posted by OsideBill View Post
    Talking stock ones here Woodster. I agree on a ported 1300 you want to open it more.
    Oh ok,a stock Rivs vs stock R&D....Better hole shot and mid on the Riva,but better speeds with the R&D.

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