How do you clean egniton coil on Briggs and stratton engine?

Remove the shrouds then you can do it in two ways .If the coil is already set right you can pull the fly wheel and sand or wire brush the face of the coil .You can remove the coil and leave the fly wheel in place.You will have to pull the spark wire off the spark plug ,remove the bolts holding the coil in place (move the magnet so it is away from in front of the coil first) ,lift coil remove wire off spade connector .Then you can clean the coil with a wire brush or sand paper (you need to clean the face and the fly wheel face and make sure you wipe so no dirt is left) the you reverse the removal and reset the coil if you have a manual it will give you proper coil gap. If not you can use a thick peace of paper to gap it.