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View Full Version : 400ex/CRF250???


Reaster00
03-02-2007, 05:55 PM
I am looking to build a hybrid and I want to go with a 250 dirtbike engine. How hard would it be to put a crf250 engine in a 400ex frame? Also anyone know if i could use a 04 subframe on a 01 frame?

Does anyone have pictures of one done like this?
brian350rx
03-02-2007, 06:39 PM
check this one out - extremely nice. On ebay - Item number: 280086921756
Reaster00
03-02-2007, 06:55 PM
i had seen that...he has been trying to sell that a long time...nice looking quad but it might take a while to find a buyer to pay that...id buy one but i am interested in building my own...im in a engineering class at a vocational school and am thinking about designing a custom frame off of a 400ex geometry stock frame...
416exmx
03-03-2007, 03:21 PM
Everyone thought it was such a great idea and everyone said how they would love to have one. I have had a TON of intrest in the quad. I have had even more compliments on it. If you are interested in the motor, I'll sell you the motor, carb and wiring. Im going to drop a CRF450 back in it.

http://www.imagestation.com/picture/sraid225/pe6baa30dcd8dbf8eb7e781219b8fe35e/ea7366b5.jpg
http://www.imagestation.com/picture/sraid225/p2f58b717d6017ccd323d970e5cb46c69/ea7366a6.jpg
http://www.imagestation.com/picture/sraid225/p36693abf610ee2763e9208b2d7f92829/ea7366a1.jpg
heath720
03-03-2007, 04:06 PM
416exmx what is it like to ride that thing? i have thought about doing it but dont have much $$$. does it have good power?
Reaster00
03-03-2007, 05:23 PM
im definetely interested...how much...also how many hours are on the motor and is there any work done to it...and that is another thing i wanted to know what is the power comparable to?
416exmx
03-03-2007, 06:43 PM
Originally posted by Reaster00
im definetely interested...how much...also how many hours are on the motor and is there any work done to it...and that is another thing i wanted to know what is the power comparable to?

Motor has around 10hrs on it. The carb is new. The power compares to a built 400. Make me an offer on the motor, carb and wiring. farmbig_01@hotmail.com
Slimyslipknot
03-08-2007, 10:02 PM
Okay...umm i might be a noob here... but why would you want to put a CRF250 motor in it when you could put a 450 motor in it... if anything.. your 400 would be faster then a 250 in there.
Project300EX
03-09-2007, 10:02 AM
Originally posted by Slimyslipknot
if anything.. your 400 would be faster then a 250 in there.


Umm no. The stock 250 will be about like a built 400.