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04 yfz 450

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Old Nov 14, 2006 | 08:31 PM
  #11  
buck183's Avatar
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Default 04 yfz 450

Originally posted by: ajd187
Originally posted by: azdave
You need the YZF needle with the clip in the 5th position (from top), a 45 pilot jet and at least a 172 main jet. Just did all this on my little brothers 06 and the bike flat rips! Pretty easy to do and the needle is only 10 bucks......
Wow that sounds rich to me. I'm running that setup with my 04 with a cam mod but only a 165 main. And I have to run with the airbox lid off (or baffle out) or it runs like complete crap.
I'm running a 178 main.

 
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Old Nov 14, 2006 | 10:47 PM
  #12  
azdave's Avatar
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Default 04 yfz 450

172 is the low end of the scaled with the lid off and baffle removed with cam mod. Most bikes run 180 plus with full exhaust..... this is at aprox 1500 ft above sea level.
 
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