125-200cc Can I run 2011-2013 144 kit on 2007?

I tried searching can someone help me out on whether I can run the 144 kit from a 2011-2013 125 on my 07?? I want to say the motor hasnt changed that much right?

Thank You!!

I think you need the updated power valves to go with the new cylinder. The older ones were squareish, the new ones are oval shaped if I remember correctly.

I don't remember when that change was though.

Later,

I think mines oval shaped, I just picked up about 7 used cylinders mostly 125 and a bunch of used fmf pipes as a parts package, Ill be keeping most of it but parting with some of it

You happen to get a gnarly pipe that would fit an 04 cr125? I'm putting a2012 144 on my 04. Let me know how yours goes if you get yours done first.thanks

Will do, it looks to me like there shouldnt be any issues. I didnt get a gnarly just some fmf powercore 2 silencers

Ok cool thanks

How can I tell the difference between a 125 and 144 head? Are the heads very different on the 144s or not?

Edge of the squish band will measure 58mm diameter, 125 will measure 54mm. A 125 head can easily be machined out to 58mm.

Perfect thank you!