Symptom: Battery cannot charge Diagnosis procedures
Yes No
Wire from connector to
battery is broken.
Set multimeter on 0V~20V DC voltage, measure the
voltage between lead wire terminal from connector to the
battery (usually a red or red/white wire) and the ground.
Wire from magneto to rectifier or wires
among rectification regulators are not well
connected or broken.
No voltage display Voltage displays
Check with an Ohmmeter if rectifier or
rectification re
ulator fails.
Battery cannot charge
Resistance is less than standard.
Charging coil is shorted.
Resistance is infinitely great. Resistance meets the standard.
Charging coil or its
output wires are
shorted.
Disconnect connectors of magneto lead wire tied to the cables of the whole motorcycle.
Measure with an Ohmmeter between out-put wires from charging coil
Connect connectors of magneto lead wire harness to the
cables of the whole motorcycle; break off connectors of rectifier
or re
ulator to cables of the whole vehicle.
Measure with an Ohmmeter on the resistance in the connectors
between output wires from charging coil, and check if the result
is in accordance with the resistance of the char
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