Good Morning
Thanks to The Mighty Gryphon for reply and comment.
I have posted a photo of Big Red and the Control Switch and harness.
The problems are the switch itself and the connector under the tank to the main harness and in the wires between the switch and the connector.
I am stripping harness to locate and replace burnt wiring.
I will need to replace the Control Switch and Switch sub harness.
I will look at further comments.
Thank you
Appreciate all feedback