Weird electrical problem
Long story short, while turning the engine over on the starter of my old CBF there's no spark, but when you stop cranking there's a big healthy looking spark just at the point the engine stops spinning.
All the cables and connectors, switchgear, etc appear good. A known good spark plug didn't make any difference. The battery is a little tired so I tried a larger fully charged one. The voltage at the starter motor appears ok and there doesn't appear to be anything draining the battery beyond the lights when the ignitions on.
My prime suspects are the ignition switch or something to do with the CDI ... any thoughts?
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