My wife has a very old SCAG mower that (despite buying her a new Cheetah) wants it repaired. Over the summer I rebuilt the old Koehler 18 Magnum and am in the process of reconnecting the wires. I have the diagram but I’m having problems trying to find where 2 black wires w male connector (below) with a black wire off the back all connect. They originate under the mower deck at the mower engage and neutral safety switch...i can send a pic if that helps...much appreciated...