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  1. #1
    haleyscomet's Avatar
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    RXP-X running lean

    I've got the mods listed below. Running very lean, how do I get it to run more rich? I have other issues to work out also but need to address this before I have to put another motor in. I don't know what my AFR's are, sorry.


  2. #2
    Orlando Shark's Avatar
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    How do you know that you are running lean if you don't know what your AFR's are?

  3. #3
    Eric Ocman's Avatar
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    Rrfpr and add fuel bro.

  4. #4
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by ImAShark View Post
    How do you know that you are running lean if you don't know what your AFR's are?
    +1

  5. #5
    Sturm215's Avatar
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    Quote Originally Posted by troyheb View Post
    +1
    13 psi with 50lb injectors i'm willing to bet it's not lean...

  6. #6
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by Ocman View Post
    Rrfpr and add fuel bro.
    +1
    If you are lean thats the way to go.

  7. #7
    mac_man_luke's Avatar
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    Quote Originally Posted by Sturm215 View Post
    13 psi with 50lb injectors i'm willing to bet it's not lean...
    +1 id bet rich...

  8. #8
    Eastside Powersports Slow 91's Avatar
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    Quote Originally Posted by ImAShark View Post
    How do you know that you are running lean if you don't know what your AFR's are?
    Color of the plugs maybe? you NEED a RRFPR and a way to monitor AFR's or its going to cost you a motor.

  9. #9
    Orlando Shark's Avatar
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    Quote Originally Posted by Slow 91 View Post
    Color of the plugs maybe? you NEED a RRFPR and a way to monitor AFR's or its going to cost you a motor.
    Yeah but that's if he does it correctly, if he lets it idle and then checks his plugs then the reading will be false.

  10. #10
    MSRXP's Avatar
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    I'm with the others.... How do you know you are running lean without a way to tell you that you are running lean. If you have 50's with that setup, I don't think you are lean at all. You are probably around 10-10.4. Losing speed being fat also increasing your engine temps.

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