Low Voltage At One Coil


Information and questions on GL1200 Goldwings (1984-1987)
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pappajim0719
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Location: Whitney,TX
Motorcycle: 1979 GL1000 full dress

Low Voltage At One Coil

Post by pappajim0719 »



Key On voltage measured at the coil connector, using the same Black/White hot wire as Positive

Yellow/Blue voltage is 12.5
Blue/Yellow voltage is 0 also probed wire at the ICM, it was the same.

When cranked, Y/B jumped to 16+
B/Y increased to 6

WHY?


Jim
Ride like everyone on the road is trying to kill you, or one of them will.

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WingAdmin
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Re: Low Voltage At One Coil

Post by WingAdmin »

It's by design. The engineers knew the voltage would be low when the bike was being started, because a lot of power is going into cranking the engine, so they have the bike boost the coil voltage during the start cycle.

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