Things You'll Need
Instructions
Remove the old string from the yo-yo. After a while, strings become so twisted that the yo-yo will not function properly.
Untwist the end of the new string that does not have a loop knotted in it and hold the two strings apart to make a gap big enough for the yo-yo to fit through. Set the yo-yo in the gap so that the string rests on the axle. Release the string and let it twist back together. This connection allows the yo-yo to "sleep" at the end of the string.
Make a slip knot in the other end of the yo-yo string. New strings have one end knotted into a loop, but the loop does not adjust to your finger. Grasp the yo-yo string about 2 inches from the loop and push it through the loop to make another loop. Put your finger through that loop, which adjusts to your finger size.