Re: 1963 mercury 100hp tower of power no spark
That motor has 2 sets of points, 2 coils, and 2 ballast resistors it is possible that the points are dirty here is a wiring diagram
to help troubleshoot any power supply issues
and here are 2 pages that describe the distributor
,
I would test for power at the coil + side before tearing apart the dist.
Are you sure this is a 1963 year?