yfz450 cases
i have an 05 yfz450 quad. just threw the chain, and cracked the case. my buddy has a set of cases off an 06. one guy is telling me they will fit, and another is telling me that 04-05 is different than 06-07. before i rip this motor out, does anyone know for sure?
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yfz450 cases
anyone?
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yfz450 cases
I think they changed the CC's somewhere in that time frame, but i don't think that would affect the case any. So i think it would work.
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yfz450 cases
i know for a fact it's the exact same piston
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yfz450 cases
the mounting bolts look like thay match up with the frame too. i'm just afraid the guts won't match up
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yfz450 cases
As far as I know they are the same
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yfz450 cases
<div class="FTQUOTE"><begin quote>Originally posted by: markymark116
i know for a fact it's the exact same piston</end quote></div> Yamaha upped the displacement from 439cc to 449cc in '06. I would think they did that through bore but, it is possible the stroke is different. Either way that is something to watch for. |
yfz450 cases
just look it up on an OEM page and see if when you go to order the cover if it has the same Part #.
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yfz450 cases
If its the same piston, then the stroke is different, and that could cause you some issues
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yfz450 cases
Yamaha increased the displacement in 2006 by stroking the crank by 1.4 mm- All the 2004/2005 parts will fit in the 2006 and later cases- you can also install the 2006 and later crank and piston ( same as the 2004/2005) into the 2005 cases-Yamaha has superseded the 2004/2005 case numbers with a 9999 series number which are the same as the 2006 and later cases- I just bought a new set of cases from MR Cycles for $258.00- Make sure you do the 2007 oil squirter mod which will save your crank and rod on the 2004/2005- I found out the hard way -$1500 worth of parts later!!!
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