I wouldn't think that kill switches are a common problem. I would cut that toggle switch out, and plug the kill switch back in. Does the stock headlight switch still work? Even though the headlights and kill switches are on the same piece on the handlebars, they run off two seperate circuits. So, if the headlights work with the stock switch, but the kill doesn't work, you either have a bad ground, or you need a new switch. If you need a new kill switch, I have one in the for sale section.
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