This from wiki:
* Magnetron Electronic Ignition - This solid state ignition system, introduced by B&S in 1981, eliminated the ages-old points and condenser setup that had plagued many customers who had used a gasoline engine for years. This setup is also available in retrofit kits, but these are only compatible with B&S's external ignition engines produced since January, 1963. However, its rival Tecumseh had made a capacitor discharge ignition setup since 1968, for their cast iron engine models, expanding it to vertical shaft engines powering lawn mowers in late 1976 before the setup came full circle in August, 1984 for all of their engine lines. The Magnetron was actually born out of the Magnavac system, introduced by B&S in 1976.[12]


Yes, indeed, there is more to it than the flywheel magnet and coil.

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags