The WEN 56180 is a compact 1800 watt generator. Because of its small size, you will need to remove the tank in order to change the spark plug.
Begin by removing the fuel hose from the shut-off valve under the tank.
SHUT OFF gas first, then slide the hose to the left to remove it from the valve. It sometimes helps to use a screwdriver tip to loosen the hose from the spigot.
With the hose removed, it is time to remove the rear brace of the generator frame.
Remove the two screws and pull the brace towards you.
Once the brace is removed, locate the four screws that hold the tank to the frame.
Now remove the screws and set them aside.
Lift the tank out of the way and remove the spark plug boot.
Remove the spark plug with the Wrench provided OR a 13/16″ spark plug wrench.
Clean the tip of the plug with a wire brush or replace it with an NGK brand BP6HS plug.
Gap to 0.028 to 0.031 inches.
Reinstall the plug. Begin hand-tightening with your fingers to make sure you do not cross-thread the plug. Snug up the plug with the wrench. Do Not over-tighten.
Reattach the tank. Line up the four holes in the corners of the tank. and tighten the four screws.
Reattach the rear brace with the two screws on the back of the brace.
Reinstall the hose on the shut-off valve.
Keep your tools in a safe place with your Owner’s Manual so you’re ready to go the next time.