Thanks again guys. I love a good mystery - NOT. Checked ignition switch, as predicted, when in "run" position, M and G have continuity. Put it back in and it started first go. I think the cutting out was because I had the idle too slow and I was on a slope, maybe fuel was missing the pickup. The fact the starter wouldn't turn over was a separate thing. And now it's working just fine without touching anything else means there's nothing to find at present. I hate intermittent electrical problems. I have also added some data to the wiring diagram so I know whats what in future. May assist others too (please review to ensure I have it right). Thanks again Doug
