Yz125 parts compatibility

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10/20/2020 1:47 PM

Is the 05 engine any different from now other than a few small changes? I’m looking for a complete motor to bolt up to a 06 frame and all I can find is a 05. I have brand new 2015 cases I would like to use as well and wondering if I will run into any trouble swapping parts over.

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10/20/2020 7:27 PM

I think you'll be OK on both accounts.

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Powerband in every gear !

10/20/2020 11:17 PM

Should be fine to swap parts between the two, but be weary of 2005/2006 cases: These had a noted shift stop mechanism problem that could grenade the transmission/impact the cases themselves...


https://www.vitalmx.com/forums/Race-Shop,42/05-Yamaha-yz125-shift-stopper,1295044

https://www.vitalmx.com/forums/Tech-Help-Race-Shop,42/Yz125-problems,1329939

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