So I have an older mower and recently I tried to start it. The starter was bad and I replaced it. then I went to try to start it again and saw smoke from under the cowling. lifted it and saw that the green primary type wire was melting the casing off. I pulled the battery out. Since then I have replaced the ignition switch and the melted ground wires and cannot get the mower to turn over or even click. so it has a new battery, new switch, new ground connection from the ignition and it grounds to two locations. I'm at a loss as to where to check next. Any help would be appreciated.