TOHATSU MFS 4C Owner's Manual page 61

1
1. Propeller
2. Thrust holder
3. Washer
4. Propeller nut
5. Split pin
6. Tighten the propeller nut to specified
torque, and align one of grooves to
propeller shaft hole.
Propeller nut torque:
12 N·m (9 ft·lb, 1.2 kgf·m)
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
2
3
4
5
ENOF00450-A
ENOF00084-D
INSPECTION AND MAINTENANCE
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.
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
in). If the gap is different, replace the
spark plug with a new one
Use spark plug NGK DCPR-6E.
1
2
1. Electrode
2. Spark gap (0.8–0.9 mm, 0.031–0.035 in)
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10
ENOF00085-0