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'05 YZ450F Motor in a '04 YZ450F Frame

4 posts in this topic

Hi All,

First post.

I've come across a 2004 YZ450F with a blown motor (the piston cracked through case). I've also located a 2005 YZ450F engine that would, ideally, be transplanted into the '04s body. Would it work without modification?

Thank you

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