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1. GENERAL INFORMATION ZING125
POOR CHARGING (BATTERY OVER DISCHARGING OR OVERCHARGING)
Undercharging
Inspection/Adjustment Symptom Probable Cause
Start engine and test
limit voltage between
battery terminals
Normal voltage Voltage does not Dead battery
increase Faulty battery
Measure resistance
between AC generator
coil terminals
Faulty coil
Normal Resistance too high Broken pink and yellow wires
Connect battery (+) wire Shorted pink and yellow wires
to regulator/rectifier
coupler red wire and
battery (-) wire to engine
ground and test voltage
Normal voltage No voltage Broken red wire
Check regulator/rectifier
coupler for loose
connection
Normal Abnormal Faulty regulator/rectifier
Poorly connected coupler
Faulty A.C. generator
Overcharging
Inspection/Adjustment Symptom Probable Cause
Connect battery (+) wire
to regulator/rectifier
coupler black wire and
battery (-) wire to engine
ground and test voltage
Battery has voltage Battery has no
with ignition switch voltage with ignition Broken black wire
"ON" switch "ON"
Check regulator/rectifier
coupler for loose
connection
Normal Abnormal Poorly connected coupler
Faulty regulator/rectifier
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