3/8/2016 6:03 AM
I would voltage drop test the wires coming from the key switch, starting with the start wire that runs to the start probe on the solenoid. Then I would check my ignition wire coming off the key switch to see if it has power. I would run VDT, on the entire run circuit. If you feel it's a safety switch issue then voltage drop testing is the fastest and easiest way to find your issue. Just start at the beginning of system/circuit you feel is the problem and go until you find where your voltage drop is. You can only have three possible faults, open-circuit, shorted, or high resistances/corrosion. You can also start at the Battery where you know you have volts and work from there back through the start system. I can't tell you where your problem is, but I can tell you that if you can voltage drop test you will locate your problem quickly without taking anything apart. You may need some back-probing pins, but making some out of small paperclips will work just fine.
Regards,