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Maintenance
Cleaning
and
adjusting
spark
plug
The
spark
plug
is
an
important
engine
compo-
nent
and
is
easy
to
inspect.
The
condition
of
the
spark
plug
can
indicate
something
about
the
condition
of
the
engine.
For
example,
if
the
center
electrode
porcelain
is
very
white,
this
could
indicate
an
intake
air
leak
or
carburetion
problem
in
that
cylinder.
Do
not
attempt
to
di-
agnose
any
problems
yourself.
Instead,
take
the
outboard
motor
to
a
Outboards
dealer.
You
1.
Spark
plug
gap
should
periodically
remove
and
inspect
the
2.
Spark
plug
part
number
spark
plug
because
heat
and
deposits
will
3.
Spark
plug
I.D.
mark
(NGK)
cause
the
spark
plug
to
slowly
break
down
and
erode.
1.
Remove
the
spark
plug
caps
from
the
Spark
plug
gap:
0.9
–1.0
mm
(0.035
–0.039
in)
spark
plugs.
2.
Remove
the
spark
plug.
If
electrode
ero-
sion
becomes
excessive,
or
if
carbon
and
other
deposits
are
excessive,
you
should
4.
When
fitting
the
plug,
wipe
off
any
dirt
from
the
threads,
and
then
screw
it
in
to
the
correct
torque.
replace
the
spark
plug
with
another
of
the
Spark
plug
torque:
correct
type.
WARNING!
When
remov-
25.0
Nm
(2.55
kgf-m,
18.4
ft-lb)
ing
or
installing
a
spark
plug,
be
care-
ful
not
to
damage
the
insulator.
A
TIP:
damaged
insulator
could
allow
exter-
If
a
torque-wrench
is
not
available
when
you
nal
sparks,
which
could
lead
to
explo-
are
fitting
a
spark
plug,
a
good
estimate
of
the
sion
or
fire.
correct
torque
is
1/4
to
1/2
a
turn
past
finger-
Standard
spark
plug:
BR6HS-10
tight.
Have
the
spark
plug
adjusted
to
the
cor-
rect
torque
as
soon
as
possible
with
a
torque-
wrench.
3.
Be
sure
to
use
the
specified
spark
plug,
EMU28991
Checking
fuel
filter
otherwise
the
engine
may
not
operate
Check
the
fuel
filter
periodically.
The
fuel
filter
properly.
Before
fitting
the
spark
plug,
is
a
one
piece,
disposable
type.
If
foreign
mat-
measure
the
electrode
gap
with
a
wire
ter
is
found
in
the
filter,
replace
it.
For
replace-
thickness
gauge;
replace
it
if
out
of
spec-
ment
of
the
fuel
filter,
consult
your
Outboards
ification.
dealer.
67
Содержание F8A
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Страница 72: ...Maintenance FPW8A FPW9 9A 66 ...
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