TOHATSU MFS 40A, Owner'S Manual

Page: 73 / 358

INSPECTION AND MAINTENANCE
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5. Inspect the spark plug. Replace the
spark plug if the electrodes are worn or
i f t h e i n s u l a t o r s a r e c r a c k e d o r
chipped.
6. Measure the spark plug electrode gap
with a wire type feeler gauge. The gap
should be 0.8-0.9 mm (0.031-0.035
inches). If the gap is different, replace
the spark plug with a new one
Use spark plug NGK DCPR-6E.
1. Electrode
2. Spark gap (0.8–0.9 mm, 0.031–0.035 in)
7. Install the spark plug by hand and turn
it carefully to avoid cross-threading.
8. Tighten the spark plug to the specified
torque.
ENON00028-0
Note
z
Spark plug torque:
18.0 Nm (13.3 ft-lb) [1.84 kgf-m]
If a torque-wrench is not available when you
are fitting a spark plug, a good estimate of
the correct torque is 1/4 to 1/2 a turn past
finger-tight. Have the spark plug adjusted to
the correct torque as soon as possible with
a torque-wrench.
1
2
ENOF00085-0
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