Maintenance & Technical > KX250 / KX125

New bottom end feels stiff

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BLACKBEARD:
I just put new bearings and new seals in.

After I put the seals in and tightened the cases, the crank didn't move as freely as I thought it should.
Could this be because I didn't grease the seals??
As always anything helps, and thanks in advance.

umberto:
Is it a 250 or 125?  What year is it?  What did you use as far as replacement parts?

Foxx4Beaver:
there should be next to no resistance when you try to spin the crank....if you feel resistance, or hear anything scraping or dragging, chances are, you'll have to open it back up and find out where things went wrong.
with new bearings, that thing should turn smoothly, and easily with the cylinder off.
you can try to post a vid, but without actually being there and feeling it for ourselves, it's kinda hard to give an accurate answer.

BLACKBEARD:
It's an 03 with new rod bearings crank bearings and new seals.

BLACKBEARD:
It's a 125.
I don't hear or feel anything throughout the whole rotation, just really really stiff. I don't know how to post a video, I'll try to figure that out later.
For now I will be tearing it back apart tonight to figure this out.

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