HYOSUNG 2010 ST7 Service Manual page 190

▣ ▣ IGNITION COIL RESISTANCE
INSPECTION
● Remove the fuel tank. (Refer to page 5-2)
● Disconnect the ignition coil read wire.
Measure the ignition coil resistance in bolt the prima-
ry and secondary windings. If the resistance is not
within the standard range, replace the ignition coil
with a new one.
IGNITION COIL / PLUG CAP RESISTANCE
Primary
0.52 ~ 0.64
Secondary
6.4 ~ 7.8
Pocket tester : 09900-25002
Tester knob indication : Resistance (Ω Ω )
SPARK PLUG
CARBON DEPOSITS
Check to see if there are carbon deposits on the spark
plug.
If carbon is deposited, remove it with a spark plug
cleaner machine or carefully use a tool with a pointed
end.
SPARK PLUG GAP
Measure the spark plug gap with a thickness gauge.
If the spark plug gap is out of specification, adjust the
gap.
Spark plug gap
Thickness gauge : 09900-20806
Ω (
Terminal - Terminal)
㏀
(Plug cap - Terminal)
0.7 0.8 mm
(0.028 0.032 in)
ELECTRICAL SYSTEM 7-6
0.7 0.8 mm
(0.028 0.032 in)