You will need to replace it, with a new one.
Cracked spark plug bro.promise
Could be a cracked head!
Depending on the model there should be a cover above the throttle handle. The spark plug should be under that cover.
Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.
blown head or cracked block
It's probably The spark plug well gaskets. You need to remove valve cover and replace the gaskets for the spark plug wells and valve cover. it's a easy repair. It's probably The spark plug well gaskets. You need to remove valve cover and replace the gaskets for the spark plug wells and valve cover. it's a easy repair.
Probably the coil for one of the cylinders, or the wire going from the coil to the spark plug if your coil isn't directly above the spark plug. Also a spark plug with cracked porcelin can cause what you are describing.
On the top of the valve cover under the plastic engine cover. Each spark plug will have a electrical connection on top of it that needs to be removed to get to the plug.
valve cover and spark plug tube gaskets. they come together in a kit
spark plug cover:)
One or more spark plug wires could be going bad. The porceline insulator on a spark plug could be cracked.
if the oil is at the spark plug base the valve cover gasket is leaking. if the spark plug electrode is covered with oil the engine needs rings