SOHC.co.uk Forums > CB350/400
400/4 Battery not charging
Bryanj:
Try red on meter to black at reg and black from meter to neg on battery, if this is close to battery voltage, with engine running, connect white and black at reg together and see if battery volts climb ifthe volts on black wire not close to battery you have a switch or loom promblem.
More to follow
THUNDERDOWNUNDER:
With ignition off battery reading was 12.77 volts .Then meter red to Black on regulator wire With ignition on I got 12.49 volts .I then joined black to white regulator wires and ran engine to 4000 revs only getting 12.39 volts not increasing!
Bryanj:
Right, with ignition on if you connect black to white ar reg is there a small spark showing current flow and or does alternator cover go magnetic enough to hold something like a feeler gauge?
THUNDERDOWNUNDER:
Connected black and white wires from regulator . Started engine and couldn’t see a spark and feeler gauge would not hold to generator cover .
Bryanj:
I would sugest removing sprocket cover and following the green and white wire from regulator to field, one of them is broken somewhere
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