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2. GENERAL INFORMATION VITALITY 50
POOR CHARGING (BATTERY OVER DISCHARGING OR OVERCHARGING)
Undercharging
Inspection/Adjustment Symptom Probable Cause
Start engine and test
limit voltage of battery
terminals
Voltage does not Dead battery
Normal voltage
increase Faulty battery
Measure resistance
between AC generator
coil terminals
Faulty A.C. generator coil
Normal Resistance too high Broken yellow wire
Loose connector
Connect battery (+) wire
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
Faulty regulator/rectifier
Normal Abnormal
Poorly connected coupler
Faulty A.C. generator
Overcharging
Inspection/Adjustment Symptom Probable Cause
Connect battery (+) wire
to regulator/rectifier
coupler green wire and
battery (-) wire to engine
ground and test voltage
Battery has voltage Battery has no
with ignition voltage with ignition Broken green wire
switch "ON" switch "ON"
Check regulator/rectifier
coupler for loose
connection
Normal Abnormal Poorly connected coupler
Faulty regulator/rectifier
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