Spark Plug - HERO DESTINI 125 Series Manual

SPARK PLUG

Refer to the safety precautions (page 48).
Recommended spark plug.
Champion-RG8YC (Federal Mogul)
Remove the center cover (page 35).
•
Disconnect the noise suppressor cap (1)
•
from the spark plug.
Clean any dirt around the spark plug base.
•
1
(1) Noise suppressor cap
Remove the spark plug using the
•
wrench plug provided in the tool kit.
Inspect the electrodes and center
•
porcelain for deposits, erosion or carbon
fouling. If the erosion or deposit is heavy,
replace the plug. Clean carbon or wet fouled
plug with a plug cleaner.
Check the spark plug gap using a wire-type
•
feeler gauge. If adjustment is necessary,
bend the side electrode (2) carefully.
2
(2) Side electrode
With the plug washer attached, thread the
•
spark plug in by hand to prevent cross
threading.
Tighten a new spark plug 1/2 turn with a
•
wrench plug to compress the washer. If you
are reusing a plug, it should only take 1/8-
1/4 turn after the plug seats.
Reinstall the noise suppressor cap.
•
! !
Never use a spark plug with an improper
•
heat range. Severe engine damage could
result.
The spark plug must be securely tightened.
•
An improperly tightened plug can become
very hot and possibly damage the engine.
64
0.8-0.9 mm
WARNING