HYOSUNG Aquila 250 Service Manual page 115

5-9 ELECTRICAL SYSTEM
◉ INSPECTION
� CHARGING OUTPUT CHECK
Start the engine and keep it running at 5,000 rpm.
Using the pocket tester, measure the DC voltage
between the battery terminal � and �.
If the tester reads under 13.5 V or over 16.0 V, check
the AC generator no-load performance and regulator /
rectifier.
CAUTION
When making this test, be sure that the battery is
full-charged condition.
Standard charge
Pocket tester : 09900 - 25002
� AC GENERATOR NO-LOAD PERFORMANCE
Disconnect the three lead wires from the AC gener-
ator terminal.
Start the engine and keep it running at 5,000 rpm.
Using the pocket tester, measure the AC voltage
between the three lead wires.
If the tester reads under 72V the AC generator is
faulty.
Standard NO-load perfor-
mance of AC generator
13.5�16.0 V at 5,000 rpm
72�99 V at 5,000 rpm
Regulator
Rectifier
Battery
IG. switch
DCV