Right found that, I gave the lot a good spray with electrical contact solvent, with no avail.
Found the starter motor, and the ring tongue was corroded to F!ŁK so I tried to undo it only to snap it off! Am hoping the corroded contact was the cause of the troubles.
This is what I mean.
Would this corrosion have caused it not to start? Also why only a negative contact on the starter motor?
Richie K