07 KX85 Part 2: Bottom End Rebuild and Reassembly

Part two of the 09 KX85 project.
In this video we dive into splitting the cases and installing new crank bearings and seals, a new crankshaft, and replacing the top end on this engine.
This was necessary due to a poorly installed crank seal by a previous owner as well as my breaking the transmission side of the crank shaft during removal of a reverse thread nut.
My mistakes definitely made the project more difficult, but I’m happy we ended up doing the full rebuild and giving the next owner of this bike a much better engine build.

[@jayloncohen4636]

I have a 1998 kx100 engine that needs to be rebuilt

[@charleighsgarage306]

Its really not as difficult as many people think. If you grab a case splitter off of amazon, do plenty of research, and take your time, it should turn out good.

[@jayloncohen4636]

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