I have a small 1500 watt Coleman Powermate generator. It is a 120 volt ac & 12 volt dc unit. The receps are missing and all I have is wires coming out of the generator windings. The one white and the one black are 120 volt ac. Then I have two orange wires. I assumed that this was the 12 volt but there is no voltage across the two. Does this mean the dc is not working or am I testing this wrong ? Thank you for any help.