differences between CR250 motor and 250r motor??? [Archive]

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R-Crazy

01-26-2003, 05:03 PM

what are the differences?????

dave

jb400exxx

01-26-2003, 05:08 PM

the 250R probably has a counter balancer, i think. not really sure. if your thinkin about puttin a cr250 engine in your 300ex frame you can make it work but it will vibrate a lot. there was something like that in one the the magazines a while back.

cjpoole1

01-26-2003, 05:10 PM

about 10 years of technology

jb400exxx

01-26-2003, 05:11 PM

the newer CR250's have a powervalve wich helps in the lower RPM's.

joeroadking

01-26-2003, 10:07 PM

everything, 250r is counter balanced cr is powervalved

jb400exxx

01-27-2003, 08:59 AM

i thought so, i'm smart!:)

racin 400

01-27-2003, 02:31 PM

a cr250 motor is gonna go in my R frame when i get it.Or i just gonna put a yz426:blah

R-Crazy

01-28-2003, 06:59 AM

i would never put it in a 300 frame, but maybe a custom Ficsher, Arens, or Herrmann frame!!!!!i saw it in a mag (probably ATV sport) and i like it.

dave

ThorChick

01-28-2003, 10:26 AM

Originally posted by racin 400
a cr250 motor is gonna go in my R frame when i get it.Or i just gonna put a yz426:blah

Go with the YZ426 swap, you'll be happier with the result, especially for MX.