I am currently starting a restoration, the wiring harness is melted. I have no key for the switch. Is it possible to get it re-keyed?? Where can I find a new/old one? A wiring diagram would be great. Also the engine code A160E-1001797 and frame CA160-1001783 do not match...does this mean an engine swap? I am pretty new to all this and any help would be great. Thanks.