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  1. #1

    250x motor lean problem.

    I have a 250x 07 with 1to1 pulley, 255/lp pump, full control, 16/21 Solas. I try any set in full control when check the spark plug is white, is very lean in a mid and end. Only in idle is reach. I need help anyone know how a possible problem is.


  2. #2
    Take the time to smile sirbreaksalot's Avatar
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    Quote Originally Posted by paul23 View Post
    I have a 250x 07 with 1to1 pulley, 255/lp pump, full control, 16/21 Solas. I try any set in full control when check the spark plug is white, is very lean in a mid and end. Only in idle is reach. I need help anyone know how a possible problem is.
    http://www.greenhulk.net/forums/showthread.php?t=57957

    read all good info, has been done many times with durability world wide

    Waz

    PS get a wideband unit/ even borrow 1

  3. #3
    I read JWilson result her problem is a good job and good inf. In my case today read the pressure gate in idle, cruse and top the pressure mantine are stady in 48-50psi. I understan a psi is not a problem. I test flow rate the pump are is correct.

  4. #4
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Do you have an AFR meter installed?

  5. #5
    I tested the pump with a calibrate cylinder and install a pressure meter in fuel line. Run and watch the sparkplug. Set the fuel control and watch the sparkplug.

  6. #6
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    Its best to get an AFR meter on these 4 strokes, reading plugs is a little different then with the Two Smokes................

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