Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums - View Single Post - Motor Swap
Thread: Motor Swap
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Old 07-13-2009, 02:31 PM   #13 (permalink)
yamaha4life127
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Join Date: Aug 2007
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yfzracer, i dont think i follow that idea, also im not too sure if the 426 cylinder will just bolt right up, also are the main bearings the same and whatknot. you must check with a dealer or online part lookup and make sure the part numbers are all the same. in addition to that you shouldnt need a new crank or anything just the side case with the onewayclutch and all the gears right?
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