sondes oil

The wire going to the wlectric choke to that choke control is supposed to be black...

Could that gray wire be the one that's supposed to go onto the top of the oil sending unit in the other picture??? And the black one is somewhere, not showing in the picture most likely coming off the choke...

Could very well be. A picture showing a larger area would certainly help. I suspect he's gone for night as it's 12:45 in the morning there in France. Reckon he'll be back.