K&N jetting

2 replies to this topic
  • phixeous

Posted December 26, 2006 - 07:58 AM


When you guys put on a k&n fillter do you change the jetting and what do you change it to on a YZ450F 2006. Thank for your info.

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  • 642MX

Posted December 26, 2006 - 08:03 AM


It shouldn't affect the jetting, but you may need to give the fuel screw an adjustment. Keep that K&N oiled well. Lots of people on here have seen them pass dirt into the carb. :thumbsup:

  • twenty34

Posted December 26, 2006 - 07:03 PM


any increase in performance?

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