That is tbe starting point for setting points on the older kohlers. you need to locate the timing mark on the flywheel and line it up with the small inspection hole in the side of the blower housing. you can either use a multimeter to set the correct timing by small adjustment in the points to find the moment you lose continuity when the timing mark lines up with the center of the inspection hole or mark the timing mark and use a timing light while making adjustments to the points when timed fully tighten the point screw then install the cover.