Will a 97mm piston fit in a stock 2007 yz450f


3 replies to this topic
  • Family Man

Posted January 31, 2009 - 04:11 PM

#1

I think the stock size is 95mm. I am wondering if a 97mm will fit stock or is a cyclinder bore/ re-sleeve required?

  • grayracer513

Posted January 31, 2009 - 04:30 PM

#2

Seems like it should. Check Luke's Racing to see if they offer a BB kit for your 450 using a 97mm piston. They bore and replate stock cylinders for their kits, so if they offer one, it's doable. Check their prices while you're there. You might decide to go that way.

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  • Family Man

Posted January 31, 2009 - 05:12 PM

#3

So a 97mm piston should fit in the stock cylinder?

  • Family Man

Posted January 31, 2009 - 05:29 PM

#4

Allright it looks like it will fit in stock cylinder but you have to bore it out.





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