1
. GENERAL INFORMATION
1-25
Dead battery
Faulty battery
Faulty A.C. generator coil
Broken yellow wire
Loose connector
Broken red wire
Faulty regulator/rectifier
Poorly connected coupler
Faulty A.C. generator
Overcharging
Broken green wire
Poorly connected coupler
Faulty regulator/rectifier
NO SPARK AT SPARK PLUG
Replace with a new
spark plug and inspect
again
Inspection/Adjustment
Connect battery (+) wire
to regulator/rectifier
coupler red wire and
battery (-) wire to engine
ground and test voltage
Symptom
Probable Cause
Inspection/Adjustment
Symptom
Connect battery (+) wire
to regulator/rectifier
coupler green wire and
battery (-) wire to engine
ground and test voltage
Normal voltage
Battery has voltage
with ignition
switch “ON”
Normal
Voltage does not
increase
Battery has no
voltage with ignition
switch “ON”
Resistance too high
Normal voltage
No voltage
Normal
Abnormal
Measure resistance
between AC generator
coil terminals
Normal
Abnormal
Check regulator/rectifier
coupler for loose
connection
Probable Cause
Check regulator/rectifier
coupler for loose
connection