Garry, thanks for the reply. Some of the EBay listings state
that the Champion 506 is a "Resistor" style plug.
Is that a "no no" for old magneto outboards?
I found this Champion Chart. The non resistor equivalent
is shown as D6, the "coldest" in the group.
It’s frustrating looking for D6 or D9 plugs, as they
always show up with the non-resistor number 506 or 509,
listing D6 or D9 as equivalents. Of course EBay doesn’t
show the actual number on the plug you’d be buying 🙄
The chart also shows three different "reach" plugs….
not sure what’s needed for the PO.
Attachments:
Prepare to be boarded!