Spark Plug - HYOSUNG Comet650 Owner's Manual

◉ ◉ AIR CLEANER OIL DRAIN PLUG
Inspect the plug ① and drain water and oil
at the periodic maintenance interval.
The air cleaner oil drain plug ① is located
beneath the air cleaner case.

SPARK PLUG

Remove the carbon deposits periodically
from the spark plug with a piece of hard wire
or pin.
①
Readjust the spark plug gap to 0.7�
0.8mm (0.028 � 0.032 in) by using a spark
plug gap thickness gauge.
PLUG REPLACEMENT GUIDE
Hotter type
Standard type
Colder type
● ● Do not over torque or cross thread
the spark plug or the aluminum
threads of the cylinder head will be
damaged.
Do not allow contaminants to enter
the engine through the spark plug
holes when the plug is removed.
● ● The standard spark plug for these
motorcycles has been carefully
selected to meet the vast majority of
all operational ranges. If the spark
plug color indicates that other than a
standard spark plug be used, it is
best to consult your Hyosung dealer
before selecting an alternate plug or
heat range. The selection of an
improper spark plug can lead to
severe engine damage.
64
0.7~0.8mm
(0.028�0.032 in)
CR7E
CR8E
CR9E
CAUTION