Jetting Help Please for a 2007 WR450F


3 replies to this topic
  • bruceal

Posted March 02, 2009 - 11:12 AM

#1

Can someone please tell me how to jet a 2007 wr450f? The bike is stock except I removed the spark arester. Also, which jetting kit is best? I also made the bike street legal with a lighting kit etc. Thank you, Bruce

  • jams229

Posted March 02, 2009 - 03:31 PM

#2

I recommend the JD jet kit. I have tried everything else, and the JD is the easiest to get right the first time.

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  • bruceal

Posted March 03, 2009 - 04:37 AM

#3

Great, thank you. What about a full exhaust system or a slip-on, or just modifing the existing muffler? What is the best thing to do there?

  • thumperjp

Posted March 03, 2009 - 06:24 AM

#4

Great, thank you. What about a full exhaust system or a slip-on, or just modifing the existing muffler? What is the best thing to do there?


What for? only make noise??

Here is another jetting.
http://www.yamaha-mo...0/1/detail.aspx




 
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