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switchin motors
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Posted by: Motomanvin329

i was thinkin about gettin a 4 stroke motor for my R. Would this be possible to get a yz426f or a crf450 motor into the stock frame and how much work will this take to do this? let me know and if anyone has a motor

Posted by: rodenberg35

nope it wont work, I tried. you gotta use a 400ex frame. I guess you could use the r frame but you need to be a master fabricator. I built alot of stuff and I didnt want to mess with it

Posted by: zedicus00

please dont cut up a stock R frame to do sumthing like that. iether get a used aftermarket hybrid chasis or start with like a 400ex frame or sumthing.... less work plus you wont hav to cut up and destroy a piece of history.

Posted by: Motomanvin329

now would i b able to get my a arms and swing arm on a 400ex frame and my other racing parts to be switched over to the 400ex frame?

Posted by: nwi45

Yeah, I'm with Motomanvin329. Would all my aftermarket R parts fit on a 400 frame?