Reply To: 1936 Evinrude Sportfour Imperial, testing the solid state cutout relay

[Buccaneer]

From what I read, the resistor in an ignition system is sized taking
in consideration the total resistance of the coil and the resistor.
The original resistor, as strange “stacked” affair that went through
the bottom of the electrical gear pan, via insulators, was in sad
shape, but it tested at around 2 ohms resistance.

I first tried a 1.7 ohm automotive resistor, and the running volts at
the coil “Bat” connection was 10.37 volts, using a digital meter.

On this last test, I used a 3 ohm resistor and an old analog volt meter,
and it read about 11 volts.
I think I should test the voltage on the outlet of the coil’s primary
and see what’s actually going to the points.

Prepare to be boarded!