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mxbrewski

Yoshimura head porting

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

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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...

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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

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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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