will i need to rejet????????????????

2 replies to this topic
  • racingo

Posted May 12, 2005 - 02:17 PM


i just purchased a 04' yz450f, i am putting a fmf factory 4 full exhaust system on it and also a twin air air filter. just wondering if i will need to rejet to make everything work well together???????

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  • Batman

Posted May 12, 2005 - 06:59 PM


I put my Akrapovic full system on and it runs awesome with stock jetting/stock air filter . I believe that FMF has jetting info on their website though .

  • racingo

Posted May 12, 2005 - 07:22 PM


thanks!!! ill check that out

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