Spark Plug; Air Cleaner Oil Drain Plug; Plug Replacement Guide - HYOSUNG GV 650 EFI Owner's Manual

◉ AIR CLEANER OIL DRAIN PLUG

�
Inspect the plug ①
at the periodic maintenance interval.
The air cleaner oil drain plug ①
beneath the air cleaner case.

SPARK PLUG

Remove the carbon deposits periodically
from the spark plug with a piece of hard wire
or pin.
and drain water and oil
is located
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 this
motorcycle has been carefully select-
ed to meet the vast majority of all
operational ranges. If the spark plug
color indicates that other than a stan-
dard 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.
54
0.7~0.8mm
(0.028�0.032 in)
CR7E
CR8E
CR9E
CAUTION