Recommended spark plugs:
NGK-CR7HSA, BOSCH-UR4AC
Ÿ Clean any dirt around the spark plug base.
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 workshop Hero MotoCorp
on this if required.
Spark plug inspection
Ÿ Disconnect the noise suppressor cap (1)
and remove the spark plug (2) with the help
of spark plug box wrench provided in the
tool bag.
1
2
(1)Noise suppressor cap (2) Spark plug
BRAND: Hero 4T plus
GRADE: SAE 10W 30 SL Grade
(JASO MA2).
2. Savita Oil Technologies Limited.
Manufactured by :
Ÿ 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.
Engine oil
Use hero genuine engine oil or recommended
grade oil.
1. Tide Water Oil Co. (India) Ltd.
3. Bharat Petroleum Corporation Limited.
Ÿ With the plug washer attached, thread the
spark plug in by hand to prevent cross-
threading.
Ÿ 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.
OIL CAPACITY : 1.05 litres
0.6-0.7 mm
Ÿ 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.
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