I purchased an almost new Craftsman Snowblower for our son. It had the light glass installed in the console and two wires going into a block under the gas tank but no harness or bulb socket. Sure it was robbed from the unit when Sears went down in Canada. I ordered the socket and bulb and made up a double harness to the light. When I use the two wires coming out from the connector to the light the engine won't start. Unhook the light and it starts without any problem. Am I only to use one of those wires under the gas tank and ground to the frame??? Please help before the white stuff arrives.