need help YZ400 dead spot

1 reply to this topic
  • pro800x

Posted June 21, 2005 - 05:48 AM


I just purcheed a 98 YZ400f, It starts fine but when you are shifting it has a dead spot, or when idling and floor it, it falls on its face, if you ease into it its fine. My buddy has one and his is very responsive. anyone have any ideas??? thanks.

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  • MattyH

Posted July 14, 2005 - 08:20 AM


jet it. and possibly check to see if the accelerator pump on the carby is still there or at least intact and functioning properly


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