2. PERIODIC MAINTENANCE
2-7
SPARK PLUG
In case of serious wear or burn to electrode or burn to insulator by spark plug or damage to thread etc, please replace
it with new spark plug
In case of carbon deposit, please use proper tools for cleaning.
Spark plug gap
Use clearance gauge to measure clearance of spark
plug.
In case of exceeding designated range, then adjust the
gap.
Spark plug gap: 0.7-0.9mm
Spark plug heat range
Check the spark plug heat range by observing the
electrode color. If the electrode of the spark plug is
appearing wet or dark color, replace the spark plug with
a hotter type one. If it is white or appearing glazed,
replace the spark plug with a colder type one.
Standard type: DCPR8E / NGK
Colder type: DCPR9E / NGK
Hotter type: DCPR7E / NGK
CAUTION
THROTTLE CABLE PLAY
Before starting the engine, check the gas pedal to be sure it is operating correctly. Make sure the gas pedal fully
returns to the idle position as soon as it is released.
Check the free play and adjust if needed. Press the throttle to make sure it moves smoothly without sticking and
snaps back automatically when it is released Check to see that the gas pedal operates correctly. It must operate
smoothly and fully spring back to the idle position when released. Have a dealer repair if necessary for proper
operation.
Check throttle pedal free play: 3 - 5mm
In case of out of range: → adjustment
Remove left and right seats, gear shift handle and
engine shield.
In order to avoiding damaging cylinder cap thread, firstly use hands to tighten spark plug and then use
spark plug wrench to tighten cylinder cap with designated torque.