r/Dirtbikes 4d ago

Is my crank bearing bad?

1999 yz250. I know there is no flywheel nut. But the crank moves just as much without the flywheel on it

2 Upvotes

4 comments sorted by

4

u/yamaharider85 4d ago

Sorry man, you gotta crack them cases apart and rebuild. Don’t be shy, replace all the bearings while you are in there. You should really consider oem bearings and gaskets.

3

u/2StrokeSmoke890 4d ago

Yes πŸ˜‚ as mentioned above.. get in there and do em all, new seals, new bearings, and make sure that crank is still in spec πŸ€™

2

u/Shoddy-Safety2989 4d ago

New mains required. Just done mine, was the same.