You are correct, it is a four post relay. One is a hot wire, one goes to the starter, one to the key switch and one to ground except mine doesn't make ground. If I put a jumper wire on it to ground, key start works normally, I agree the problem is in the safety switch circuit. Problem is that all the wiring is in looms . Even have tail lights and turn signals all in the same loom. Book wiring schematic is just a "stick" drawing and doesn't show actual locations and current flow. Took today off, will hit it again tomorrow. Thanks Mark
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