Open the hood for access to the engine compartment. Locate the four wires that are plugged into the front of the engine. The four wires will be evenly spaced.
Pull the first spark plug wire gently away from the engine. This will expose the end of the spark plug.
Place a 5/8-inch deep well socket over the sparkplug. Attach a socket wrench to the socket and loosen the spark plug from the engine by turning the wrench counterclockwise.
Pull the wrench, socket and sparkplug from the engine. The sparkplug will stick inside of the socket.
Pull the sparkplug out of the socket. Discard the old sparkplug.
Tighten the new sparkplug in to the cylinder by hand. Wrench tighten the spark plug with a socket wrench until the wrench can no longer turn.
Push the spark plug wire on to the spark plug. Push the wire on until it locks in place with a "click" sound.
Repeat this process to replace the remaining three spark plugs on the front of the engine. Replace spark plugs one at a time to avoid confusion on placement of the spark plug wires.