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  1. #1

    does anyone have tried the r&d r4 reflash?

    i am having a problem. i have a fx sho 2008 with a b1 riva impeller and the ski is running extremly lean with fuel presure in 55 psi


  2. #2
    isa alnoaimi's Avatar
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    is the vacum line connected to the FPR ?

  3. #3
    yes i have it connected to the vacum

  4. #4
    isa alnoaimi's Avatar
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    what reflash are u using ?

  5. #5

  6. #6

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    I have had the R2 and the R3 with my FZS and both ran lean on top end with proper fuel pressure. I am using a power commander to get the A/R's inline. Both flashes run excellent though!

  7. #7
    Water4fire's Avatar
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    What fuel pump? Mine had issue's until I added the walbro.

  8. #8
    isa alnoaimi's Avatar
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    check ur fuel pump also ur FPR
    if they are good
    then you have to talk to R&D
    talk to glenn , he's a good guy and will help you

  9. #9
    the fuel pump is oem. i think i will have to use a power shot fuel tuner. plus the fpr that i all ready have

  10. #10
    right now with the b1 impeller and the r4 reflash and the problem tha i am talking the machine is running 76 mph at 8300 rpm . i am thinking when i resolve the lean problem in wot i will try to go to 8650rpm

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