Can weak spark cause misfire?
Can weak spark cause misfire? The engine will be weak, the unburned fuel will foul the spark plug, and the exhaust will pop. If the mixture is excessively lean, the engine will misfire since the fuel molecules in the intake air are too far apart. What does a gap on a spark plug mean? A spark plug gap is the distance between the end of the electrode and the base of the spark plug. If your spark plugs aren’t properly gapped, your engine may not burn fuel properly. What should the spark gap be on an outboard motor? The recommended...