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  1. #1
    DARTHSPEED's Avatar
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    Tuning after D-plate??

    On a 2000 gp1200R. I have searched but cannot find any info on tuning the carbs after a D-plate install is neccassary. The ski ran perfect prior to this mod and only doing the mod to increas reliablity as mentioned here. I just installed the Rive D-plate and the instructions says that the carbs may need to be adjusted and the tamper cas need to be rempved. Anyone have experience if the carbs will need adjusted. The only mod made was the D-plate and soon to be a free flow exhaust tube from Riva.


  2. #2
    i will get all the rest i need when im dead corkycat's Avatar
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    send osidebill a pm, he is the man but do a full search first.

  3. #3
    philip_gpr's Avatar
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    you shouldn't have to touch the carbs

    a free flow is not needed on a stock ski, it makes the ski louder and it actually slows you down

  4. #4
    DARTHSPEED's Avatar
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    OK, pm osidebill and waitin reply. Why would the free flow slow the ski down. Is it because of too little back pressure. I just didn't want any issue with detonation.

  5. #5
    philip_gpr's Avatar
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    Is it because of too little back pressure

    yes, with a stock ski it is very hard to improve on the exhaust system as delivered by Yamaha

    even adding a D plate slows the ski down a bit - but in this case it is worth making the change to reduce the temperatures inside the hull by removing the cat

  6. #6
    DARTHSPEED's Avatar
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    Somwhere I read that the install of the d-plate could help with top end speed. If it doesn't; oh well at least I won't have to worry about it melting down.

  7. #7
    May the 2 Stroke Live On
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    When you pulled that thing out, did it look like mine?..btw also got my plate from riva and i did remember the item about messing with the carbs..however to quote osidebill, i thought he said something that the 66v carbs have stood the test of time and man..someone help me on this i seem to remember bill saying that in one of his posts but set me straight either way..Can it result in a lean condition by pulling your cat con and replacing with the dplate..just using the stock intake plenum
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    Last edited by Ragu66V; 04-01-2009 at 01:59 PM. Reason: to elaborate

  8. #8
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    Quote Originally Posted by Ragu66V View Post
    When you pulled that thing out, did it look like mine?..btw also got my plate from riva and i did remember the item about messing with the carbs..however to quote osidebill, i thought he said something that the 66v carbs have stood the test of time and man..someone help me on this i seem to remember bill saying that in one of his posts but set me straight either way..Can it result in a lean condition by pulling your cat con and replacing with the dplate..just using the stock intake plenum

    No you dont need to rejet because you put a d-plate in, but you should rejet because they run lean to get through emmissions (doent matter if the cat or d-plate is installed)....

  9. #9
    DARTHSPEED's Avatar
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    My cat looked perfect, but why wait until it fails.

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