2004 YZ125 - 53.94 or 54mm piston?

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9/5/2017 10:55 AM
Edited Date/Time: 9/5/2017 10:56 AM

Not sure where I find the info for the model YZ125 cylinder I have pertaining to the proper piston size? Are there any links out there with this info? The cylinder looks to be stamped with an "A" on the side of it.

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United States of America

9/5/2017 1:11 PM

You measure the bore of the cylinder and find the piston that gives the clearance specified in the service manual. Unless you know the history of that cylinder since it was brand new, you dont want to rely on stampings.

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2009 Kawasaki KX450F
2009 Kawasaki KX250F
2002 Suzuki GSXR 600

9/5/2017 5:08 PM

Thanks Acidreamer.

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United States of America

9/5/2017 7:12 PM



Hope this helps ?
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"Performance Matters"

9/6/2017 1:12 PM

F1 Moto wrote:



Hope this helps ?

Very informative video Steve! Thanks

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United States of America