Spark Plug Inspection - HERO SPLENDOR+ PROGRAMMED FI Manual

SPARK PLUG INSPECTION

Recommended spark plugs:
NGK-CR7HSA, BOSCH-UR4AC,
Federal Mogul-P-RZ9HC
For most riding conditions this spark plug heat
range number is satisfactory. However, if the
vehicle is going to be operated for extended
periods at high speeds or near maximum
power in hot climates, the spark plug should
be changed to a cold heat range number,
consult Authorised
Hero MotoCorp
on this if required.
C lean any dirt around the spark plug base.
•
D isconnect the noise suppressor
•
and remove the spark plug
of spark plug box wrench provided in the
tool bag.
2
(1) Noise suppressor cap
Visually inspect the spark plug electrodes for
•
wear. The center electrode should have
square edges and the side electrode should
not be eroded. Discard the spark plug if
there is apparent wear or if the insulator is
cracked or chipped.
workshop
cap (1)
(2) with the help
1
(2) Spark plug
Make sure that the spark plug gap is
•
0.6-0.7 mm using a wire-type feeler
gauge. If adjustment is necessary, bend the
side electrode carefully. Make sure the plug
washer is in good conditions.
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
•
spark plug wrench to compress the washer.
If you are reusing a plug, it should only take
1/8-1/4 turn after the plug seats.
! !
Do not remove the spark plug and test for
•
spark on the vehicle by cranking the engine
as this could lead to fire or explosion
Install a dummy spark plug in the cylinder
•
head and test for spark.
Never use a spark plug with improper heat
•
range.
Always use resistor type spark plug.
•
32
30
0.6-0.7 mm
CAUTION