TOHATSU MD 40B2 Owner's Manual page 85

6. Tighten the propeller nut to specified
torque, and align one of grooves to
propeller shaft hole.
Propeller nut torque:
25 Nm (18 ft lb, 2.5kgf
-
7. Install a new split pin into the nut hole
and bend it.
ENOM00087-A
Spark plugs replacement
ENOW00087-0
WARNING
Do not reuse spark plug with damaged
insulation, or sparks can leak through
crack, potentially leading to electric
shock, explosion and/or fire.
Do not touch spark plugs immediately
after stopping engine as they will be hot
a n d c o u l d c a u s e s e v e r e b u r n s i f
touched. Allow motor to cool down first.
ENOW00929-0
CAUTION
Use only the recommended spark plugs.
Spark plugs which have an different heat
range may cause engine damage.
If the spark plug(s) is fouled, has carbon
build up, or is worn, it should be replaced.
When reusing spark plugs, remove dirt
from the electrodes and adjust spark gap
to specification.
m)
-
ENOF00084-D
INSPECTION AND MAINTENANCE
1. Stop the engine.
2. Remove the top cowl.
3. Remove the spark plug caps.
4. Remove the spark plugs by turning it
counter-clockwise, using a 5/8" (16
mm) socket wrench and handle that is
provided in tool bag.
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 re 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 with referring specifica-
tion (See page 13)
1
2
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.
85
ENOF00085-0
10