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Thread size of fuel screw 450x?
  • YOLO Racing
    Posts:9
    Joined:Sun Jan 30, 2011 2:25 pm
    Thread size of fuel screw 450x?

    by YOLO Racing » Wed Feb 09, 2011 6:15 pm

    Does anyone know what the thread size is of the fuel screw, 2007 CRF450X?
    The threads on the carb are messed up and the new fuel screw does not want to go in... I would like to tap the boss if I can figure out the size.

    Thank you in advance!

    Ross
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    Aspired
    Posts:161
    Joined:Mon May 15, 2006 8:34 pm

    by Aspired » Tue May 17, 2011 7:09 pm

    Does the stock one go in? Just checking if maybe the new fuel screw is the issue and not the carb.

    I can't help with the tap number that would be required but if no one else knows I would bring the fuel screw to the hardware store and find the nut that fits it and then a tap that fits the nut.

    Hope someone know more
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    The best suggestion - Make sure you have a manual!
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    motosicko
    Posts:1348
    Joined:Tue Sep 25, 2007 7:20 am

    by motosicko » Wed May 18, 2011 8:45 am

    M6 x 0.5 pitch
    "There are old racers
    and there are bold racers,
    but there are no old, bold racers who don't walk funny."
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    Aspired
    Posts:161
    Joined:Mon May 15, 2006 8:34 pm

    by Aspired » Wed Jun 08, 2011 10:18 pm

    motosicko wrote:M6 x 0.5 pitch


    And someone does - NICE!
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    The best suggestion - Make sure you have a manual!
  • YOLO Racing
    Posts:9
    Joined:Sun Jan 30, 2011 2:25 pm

    by YOLO Racing » Mon Jul 11, 2011 9:54 am

    Thanks for that, ordered one and it cleaned up the boss nicely.
    Waiting for a new fuel screw, going to give the RD flex jet a go

    Cheers,
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