why do cb points spark?
I've been doing a quite a bit working on the elecrics of the bike over the past week. Although I've learnt quite a bit from the Haynes (UK) motorcycle electrics book, I have a question.
Current goes through the primary winding of the coil, and then this circuit is broken when the points open, causing the secondary winding in the coil to generate voltage which then produces a spark at the spark plug. But why does there need to be a spark at the points when they open?
cheers,
Doug
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