HYOSUNG COMET 125 Service Manual page 111

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
If the tester reads under 14.0 V or over 15.0 V, check
the magneto no-load performance and regulator /
rectifier.
CAUTION
When making this test, be sure that the battery is
full-charged condition.
Pocket tester : 09900 - 25002
Standard charge
MAGNETO NO-LOAD PERFORMANCE
Disconnect the three lead wires from the magneto
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 67 V or over 99 V the magneto
is faulty.
Standard NO-load perfor-
mance of magneto
and .
14.0 15.0 V (at 5,000 rpm)
67 99 V (at 5,000 rpm)
Regulator
Rectifier
Battery
IG. switch
DCV