Cleaning a bearing
Cleaning a bearing usally makes a yoyo less responsive. To clean a bearing use lighter fluid/ mineral spirit (others can work to)
1 put the substance into a non plastic glass ( remember it may damage plastic )
2 place bearing into the glass with the substance and let sit in the substance for 20-30 minute, it may help if bearing is un-shielded
3 let dry for about an hour before putting into a plastic yoyo it may damage the yoyo
i spin on a pencil or pen for the inside of it
also you can use to air compresser to get it out by blowing the air in their
4 put into yoyo and throw and have fun
good luck