Suzuki 2 Strokes

I was messing with a spare coil pack today getting ready to put new plug caps on. Upon removing the old caps, I discovered that 2 of the wires are stranded and one has a single larger wire. So someone has replaced something in the past. Also a dead give away, there is no epoxy where the wires enter the coils. Not even a trace and no signs of scraping. I assume with these screw on plug caps you would want the stranded type wire. Stranded or solid?

Stranded is correct. Solid is fine for household wiring but is not designed for motorcycle use.