YZ400-426-450f parts interchange

1 reply to this topic
  • Kawturbo1

Posted October 06, 2006 - 03:32 PM


I just acquired a 99' YZ400f.I was wondering if the 426 or 450 cylinder would fit on the 400.And what other parts are interchangeable.The bike I have had the piston hit a valve.I haven't got it apart yet to see exactly what is wrong with it.But any help would be great.

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  • redrocket190

Posted October 06, 2006 - 06:24 PM


http://www.powroll.com/index.htm These folks will stroke your 400, and put a 426 cylinder on it for 442cc. The parts list shows what you could use to simply make your 400 a 426...


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