How do you change a spark plug on a suzuki jr 80?

To change the spark plug on a Suzuki JR 80, first, ensure the bike is turned off and cool. Remove the spark plug cap and use a spark plug socket and ratchet to unscrew the old spark plug from the cylinder head. Before installing the new spark plug, check the gap with a feeler gauge and adjust it if necessary. Finally, screw in the new spark plug by hand, then tighten it securely with the socket, and reattach the spark plug cap.