In the hope of clairification .. your first post about spark plug wire. There are two kinds of SP wire, wire core and carbon core resistance “wire”. Use wire core for our outboard motors never resistance type… and the wire core is always multi strand copper.Never heard of solid wire core SP wire.
Ref Tubs photos… resistance across the primary winding should be about 1 ohm , like you found. The secondary winding being composed of thousands of turns of very fine wire will give a high resistance reading, typically in the range of 6,000 to 75oo ohms. If you are seeing no continuity ( “open”) that indicates that there is a break somewhere in that fine wire. and the coil is bad. Now, I have seen situations where a coil shows “open” but yet produces a spark. What’s happening in such a case is that the high voltage is jumping that gap in the wire within the coil winding. Such a coil will produce a spark for a while but will eventually fail… like when you are out in the middle of the lake.
Joe B
