I had a piston go on my bike 83 CR 250 piece of the skirt broke off . Looks like PO did the bottom end and reinstalled cylinder with broken sleeve witch led to the broken piston skirt .
To my question I split cases throughly cleaned bearings they spin smooth as silk with no play . Should I oil the bearing with something before I reinstall crank ? I know many say to replace bearings, but I cleaned them out real good with carb cleaner and compressed air . I did kill the bike as soon as I heard the rattle , so it didn't run for that long with the broken piston .
To my question I split cases throughly cleaned bearings they spin smooth as silk with no play . Should I oil the bearing with something before I reinstall crank ? I know many say to replace bearings, but I cleaned them out real good with carb cleaner and compressed air . I did kill the bike as soon as I heard the rattle , so it didn't run for that long with the broken piston .