Page 1 of 1
Differences in CRF 250 Heads
Posted: Tue Aug 27, 2013 9:06 am
by Bigbird
What are the differences between a 2005, 2006, and 2007 CRF 250R heads? And... when were there significant changes in head design?
Re: Differences in CRF 250 Heads
Posted: Tue Aug 27, 2013 1:47 pm
by crfsonly
The changes were primarily port changes. They are completely backward and forward compatible with the 2004-2009 CRF250R series. The best porting of the three you mentioned is the 2007. They continued to make porting improvements beyond 2007 and reduced the stem diameter of the 2008-2009 heads.
Posted: Tue Aug 27, 2013 4:54 pm
by Bigbird
Thanks once again.
Posted: Tue Aug 27, 2013 4:55 pm
by Bigbird
Thanks once again.
Posted: Wed Aug 28, 2013 10:36 am
by crfsonly
you're welcome. let me know if you have further questions.