Yoshimura head porting


5 replies to this topic
  • mxbrewski

Posted December 01, 2012 - 10:46 AM

#1

Anyone had the Yoshimura head porting done to their 2010-2013 YZ450F. I read that it had positive reviews on MXA and Motorcycle USA.

  • galligar

Posted December 02, 2012 - 03:01 PM

#2

Go through Dr. D the same guy does it just on the side, a little cheaper than yosh, at least it was in 08 .

  • mxbrewski

Posted December 03, 2012 - 07:23 AM

#3

Dubach no longer lists porting on his website, but thanks for the reply.

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  • eazrider

Posted December 05, 2012 - 11:33 AM

#4

I had mine ported by Short Block Charlie in Tempe AZ...He flowed rthe head stock, and after his port work. Graphs showed between 8-11% increase in flow across the RPM range. More flow =more power. I noticed more bottom end and mid range...

  • STR8SHOOTR

Posted December 06, 2012 - 02:32 AM

#5

Anyone had the Yoshimura head porting done to their 2010-2013 YZ450F. I read that it had positive reviews on MXA and Motorcycle USA.

Be careful of who does the porting, I've read many times where they lost power from a porting job that wasnt up to par.

Edited by STR8SHOOTR, December 06, 2012 - 02:33 AM.


  • mxbrewski

Posted December 07, 2012 - 05:52 PM

#6

Thank you for the replies! I would only have Yosh, Pro Circuit, or Ron Hamp do the porting. But thanks for the recommendation, I am more interested in Yosh at this time due to the posted reviews.





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