jetting issues when i add my pipe

1 reply to this topic
  • cj7mudder

Posted July 31, 2007 - 09:11 PM


I just bought a 2000 wr400 and was wondering if anybody would know what the jets I would need when I add a FMF powercore 4 pipe would be or any suggestions? The bike is stock right now.

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  • clark4131

Posted August 01, 2007 - 07:06 AM


Check the Jetting Database in the Performance Index...SC


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