[tevake]

Paul, that is such a good idea. It would have taken lots of the challenge and risk out of the tow.
Well I have switched out the coil and coil wire. Plus had a good look at the green wire, which seems to be in good shape. so far no go.

I guess its time for the book now Milt. I've just put new batts in my multi meter. And will spend some time reading up on these matters electrical to see where to look next.

Cheers Richard