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View Full Version : 400EX w/ CR250 Motor


Live2Ride300
12-19-2005, 04:01 PM
Anybody on here built one? I've got a good 400ex rolling chassis thats begging for it.

What are some of the problems associated with it? I know it will vibrate like heck.
ktmsxridr
12-19-2005, 04:03 PM
lets see some pics
Mxjunkie
12-19-2005, 04:03 PM
www.servicehonda.com


you can have them build one for you, you could use it as a guide line persay
Live2Ride300
12-19-2005, 04:05 PM
Originally posted by ktmsxridr
lets see some pics

Of the rolling chassis I assume?
Honda TRX250ex
12-19-2005, 04:07 PM
i heard thoes things haul ***
Hondadudeehhhh
12-19-2005, 04:07 PM
i would put a cr500 motor in it, but it would be kind of pointless if you didnt live by the dunes.
Mxjunkie
12-19-2005, 04:09 PM
I belive they have a shot of it, Dierwolf a old member on the site had a cr500 250r and he rubber mounted the motor to cut down on vibration, look up some of his posts it should be able to help you as well!
diangelo#67
12-19-2005, 04:40 PM
unless you put a counter balancer or flexx bars and alot of gussetts don't do it .....it'll vibrate your teeth out seriously
12-19-2005, 05:51 PM
I would call it a 250r! :D :macho
Live2Ride300
12-19-2005, 08:10 PM
Lol, there ya go!
MXRACER86
12-19-2005, 08:17 PM
Originally posted by diangelo#67
unless you put a counter balancer or flexx bars and alot of gussetts don't do it .....it'll vibrate your teeth out seriously

Im not saying that your wrong but I don't belive that it would vibrate alot! Why doesn't it vibrate when it is in a dirt bike??? So all of a sudden as soon as you drop it in a quad frame it starts to vibrate!!! Ya know what I mean! I have ridden a CR500 before and it don't vibrate at all!
TheFontMaster
12-19-2005, 08:34 PM
Originally posted by MXRACER86
Im not saying that your wrong but I don't belive that it would vibrate alot! Why doesn't it vibrate when it is in a dirt bike??? So all of a sudden as soon as you drop it in a quad frame it starts to vibrate!!! Ya know what I mean! I have ridden a CR500 before and it don't vibrate at all!

Because the dirtbike frames are more compact that makes them stronger. Also I think that it's something about the frame being more compact, and the front forks that really reduce the vibration.
Live2Ride300
12-20-2005, 06:19 AM
If the engine is mounted properly using some type of vibration absorbing mounts it should be tolerable.