I'm not great with electrics but I know the basics!!
Before I stripped everything I checked the wiring. I have a Pazon EI. I did the spark test by touching the two wires going to the pickup together, no spark with switch in run position.
Unplugged the switch & jumped between yellow/white & white on the connector block & did the Pazon test & got spark.
So, stripped everything (L.A.B.'s pics really helped)
Starter switch was not too bad but cleaned it all up & gave the contacts a sanding.
Same thing with the kill switch, cleaned contacts & the tiny copper 'bridge' pushed by the spring. I can see now why people either bypass this setup on put a relay in!!
Plugged the switch back in & did the Pazon spark test & it's working, one small thing off my list!!
While doing this testing realised my battery is dead!, tried a smart charger and it reads 12.5v but the second you put a load on it, it dies!!
I had a Yuasa YTX20A-BS which fit the battery tray, no stock in Ireland so I'll need to find a UK supplier, Tayna seem to have a few options, any other suppliers worth trying?