Control box now sorted. It was, as expected, dirty contacts. When I did it last year, I just set the gap so that it looked right and worked. Since then I have acquired a copy of the tech book, so this time it has been set properly with a feeler gauge to get the correct gap. A lot smaller than I had before.
Worked out well with testing it too. Wife wanted to go down the farm where the Timber Tractor is to visit the relatives. So spend a bit of time giving her a lift down, say hi to Aunt and Uncle, and get to test control box on the truck. Everybody happy.
Spent the afternoon m