Maintenance & Technical > KX250 / KX125
New bottom end feels stiff
reklessj:
Easiest way to post video is through YouTube
RoostDaddy:
Is the crank centered in the cases? If you are off one side or the other there will be resistance and will not turn easlily.
BLACKBEARD:
Ok this might help...
When I tighten the case screws, the crank has more resistance.
When screws are loosened the crank turns freely.
sandblaster:
I'd check the crank to case clearance on both sides.
If it is centered I would split the cases and take a good look at how well my bearings are pressed in.
If they are not completely pressed in then you could be rubbing and not see it.
BLACKBEARD:
Ok... so the RH crank seal was pressed all the way against the bearing.
When I pulled the crank back out, I tried turning the bearing with my finger and it was seized. As soon as I pulled the seal off it was free.
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