I have a Murray mower date code 0184 with a 12.5 Briggs. I can't find any wiring schematics. The ignition switch was bad and the terminals were corroded. My son had removed the solenoid to use on another mower. I put it back but am not sure it's right. The yellow kill switch wire from the seat has a terminal that looks like it should go on the solenoid. I tried to us an ignition switch from an older Murray, but the wiring is different and looks like the pos. and negative. Are reversed on the switch. If anybody knows how the loops are run, I could probably figure it out, but I can't even tell how to bypass everything just to check out the engine. Any help?