Update.
Today I pulled all connectors off and after a few tries put them back I got the motor working again. No clue how or why though. Possibly poor connection other than at the POD?
After that as usual I had to wiggle the red POD connector to get lights working correctly. Now short road tested, needs a front bulb, the control box cover fitting and it's ready for the grandchildren to race me on. Sneakily I have only fitted a used car battery I had so I SHOULD be faster, excess weight permitting!!!