HYOSUNG 2010 ST7 Service Manual page 193

7-9 ELECTRICAL SYSTEM
MAGNETO NO-LOAD PERFOR-
MANCE
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 volt-
age between the three lead wires.
If the voltage is under the specified value, replace the
magneto with a new one.
Standard NO-load perfor-
mance of magneto
Pocket tester : 09900-25002
Tester knob indication : Voltage (
▣ ▣ REGULATOR / RECTIFIER
Disconnect the regulator / rectifier couplers.
Measure the voltage between the terminals using the
pocket tester as indicated in the table below.
If the voltage is not within the specified value, replace
the regulator / rectifier with a new one.
①
①
②
0
③
0
④
0.4∼0.7
0.4∼0.7
⑤
0
Pocket tester : 09900-25002
Tester knob indication : Diode test (+ )
Over 70 V (at 5,000 rpm)
Unit : V
Tester probe
② ③ ④
0 0 0
0.4~0.7
0 0
0.4~0.7
0 0
0.4~0.7
0.5~1.2
0.4∼0.7
0 0
0
)
⑤
②
①
④
③
⑤