YES A magneto indeed has a coil inside, how else you think it steps low voltage up to several thoudand volts necessary to arc current across a spark plug gap DUHHHHHHHHH
Its visible in the picture El Toro posted with its visible Wico lettering.....
It doesnt look like a typical tall thin can coil thats used on coil distributor ignitions, its more circular (actual windings) and has an iron core that goes through its center. It has a low voltage primary winding in the points circuit and a high voltage secondary winding whose output goes to the distributor rotor and eventaully via plug wires to the plugs.
If its a Wico X mag you see it if you remove the cap and its HV output button/terminal is obvious and where the caps lil springy contactor mates up.
If a mag is working correctly the spark should be a brigh visible blue and NOT any faint thin wimpy yellow spark.
Typical mag problems are burned or incorrect gapped points or a bad condensor or a bad coil.
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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