Question about 2000 KTM SX 125
This problem sounds like your lower crankshaft bearing is worn.
the only way to be sure is to pull the top end to expose the rod and center it and see if it has noticeable movement up and down play.
If the crank needs rebuilding make sure you also replace the main bearings
and new seal kit,piston and rings Etc.
Posted on May 12, 2010
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Posted on Jan 02, 2017
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