Had my engineering mentor down with me .. Good Mr Fleming …
he took me back to first principles of solenoid connections and also we stepped through the initial test wiring I had created.
Turns out I had missed a wire ! So checked it all through, drilled the bulkhead for an additional earth wire .. Located a suitable chunky bolt on the back of the engine and attached earth cable. Ran it through new grommet end hole and secured along the way.
Temp attached started cable and flicked mains on and pressed the starter ! Bingo .. We have life and a quarter turn of the prop !
now to push on with instruments connectivity