Pilot Screw Setting, 2002 YZ426F

2 replies to this topic
  • mgoodwin9

Posted February 03, 2011 - 11:56 AM


I took my carb apart last nite but didn't check the pilot screw setting in advance. Can someone tell me the factory setting? I could at least start there. And how do you determine where it should be set?
Thanks, Mike

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  • grayracer513

Posted February 03, 2011 - 12:27 PM


The factory pilot screw setting is listed as 1.25-2.0 turns out on your bike.

You set it this way:


And verify it like this:


  • mgoodwin9

Posted February 03, 2011 - 01:21 PM


Thanks for the help

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