The magneto on these was first used in about 1950 and still installed on small 1990 models.----Used on 1.5 / 2 / 3 / 4 / 5 / 5.5 / 6 / 7.5 / 10 / 18 / 20 / 25 / 30 / 33 / 40 hp motors.----A simple reliable unit.----Points MUST open at the correct time to get maximum spark.----If coils are not...