Yellow and orange are the colors and these follow the Kelvin scale of determining voltage by color. Warm colors like yellows and reds as well as oranges are signs of a weaker spark output and this is not enough to engage the engine on your Briggs and Stratton engine. Briggs and Stratton lawn mower parts demand the very best.
Blue is What You Want to See
While the color blue is normally reserved for down and out days and moods when it comes to the fire that is needed to engage the Briggs engine, blue is the one! Briggs spark plug issues come in all shapes and varieties. We only wanted to speak to you a little bit about a quick way to determine if it is indeed a spark plug issue or something else that is keeping you from mowing the lawn today? Maybe the game is on and you just cannot seem to get that blue spark?