2006 YZ450F jetting help

2 replies to this topic
  • obond008

Posted August 28, 2010 - 11:42 AM


I need some help with jetting my 2006 YZ450f. I live in Utah and ride mainly at 5000 to 6000 feet. I'm running White Brothers head back exhaust. Need to know what main, pilot, and how many turns out on fuel screw. Any help would be great.

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  • grayracer513

Posted August 28, 2010 - 11:53 AM




  • obond008

Posted September 14, 2010 - 11:07 PM


Okay, went from a 170 mj, 48 pj, and 2.25 on fuel screw to 168 mj, left pj, and went to 1.5 on fuel screw bike bogged out when going from on the throttle to off to back on. I'm going to try going back to original jetting except for the fuel screw leaving it at 1.5 and changing from the tusk screw to the R&D fuel screw to see how that runs. Will post results from that test.

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