EdLennon

~SPONSOR~
May 10, 2000
61
0
Hi all,

Does anyone happen to know what year range of cylinder will work on a 2003 RM125 engine?

My son's piston broke at the wrist pin and shattered into a bunch of little pieces.

Thing that sucks is that it is/was an Eric Gorr modded 144 motor. That thing was wicked. It only has 33 hours on the complete engine rebuild, so I was rather shocked the piston gave.

I don't know if someone like PowerSeal can fix the cylinder (it would need to be welded in several places), but it would be nice to retain the 144 cylinder and porting.

If you guys have any info (and I'm sure you do), I would greatly appreciate anything you can pass along.

A close by mx'er has a cylinder from a 2000 RM125, but I don't know if it will work or not. The power valve setup has an external "adjuster" looking thing that the 2003 does not have, but everything else looks the same.

Thanks for all your help,
Ed
 

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