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CHUCK
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    I’ve always believed that if,  when the flywheel is up-side-down on the table….if you place a typical screwdriver against the magnets and it grabs and holds it….your magnets are OK.

    Have you check the points for insulator-block breakdown?  When then are dis-connected do they read zero or close ohms when closed …..and when they are open do they read “open”. ?

    Is your spark plug wire new and/or in good condition?  Did you ohm-test that?

    Do you have access to a Merc-o-Tronic or Stevens coil tester?  Ohm testing a coil is good but not entirely conclusive.