Yes I have a pretty decent meter that I use for work.
I have 12v AC across the thick yellow wire and ground which is expected.
When I then connect the ground and yellow to the bulb I get nothing.
I can then connect the bulb straight to a small quad battery and it lights up straight away on both low beam and high beam ?. But the AC voltage on the bike will not light the bulb.
Yeah your right rev the engine and it gives way more AC voltage and even with a very high rev I seen 25V.
So really the AC should light my bulb and probably be flickering but still light it ? I have literally measured voltage all the way to the bulb and then as soon as I connect to bulb connector no voltage ?. Possibly not enough power to light the bulb .. I read that the white wire is higher out put so possibly I can draw higher current to even light the bulb
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