F20EI F25EI F30EI
Maintenance
Greasing
grease A (water resistant grease)
grease D (corrosion resistant grease;
lor
propeller shaft)
Cleaning
and
adjusting
spark
plug
，
1
‘
'1'1
啊
I~II~
【帽
When
removing
or
installing
a
spark
plug
,
be careful
not
to
damage
the
insulator. A
33
damaged
insulator
could
allow
external
sparks
,
which
could
lead
to
explosion
or
fire.
The spark plug is an important engine com-
ponent and is easy to inspec
t.
The condition
01
the spark plug can indicate something
about the condition
01
the engine. For exam-
ple
,
il
the center electrode porcelain is very
white
, this could indicate
an
intake air leak
or
carburetion problem in that cylinde
r.
Do not
attempt to diagnose any problems yoursell
Instead
, take the outboard motor to a
dealer. You should periodically re
move and inspect the spark plug because
heat and deposits will cause the spark plug
to slowly break down and erode.
1I
electrode
erosion becomes excessive
,
or
if carbon and
other deposits are excessive
, you should re-
place the spark plug with another
01
the cor-
rect type.
I Standard spark plug:
DPR6EB-9
Before litting the spark plug
, measure the
electrode gap with a wire thickness gauge;
adjust the gap
to
specilication if necessary.
2
1
j.
Spark
plug
gap
2.
Spark
plug
1.
0.
mark
(NGK)
Spark plug gap:
08-0.9
mm (0.031
-0
.035 in)
When litting the plug
, always clean the gas-
ket surface and use a new gaske
t.
Wipe off
any dirt from the threads and screw in the
Maintenance
spark plug to the correct torque.
Spark plug torque:
18.0 Nm (13.3 ft-Ib) (1.84 kgf-m)
NOTE:
1I
a torque-wrench
is
not available when
you
are filting a spark plug, a good estimate
01
the correct torque is 1/4 to 1/2 a turn past lin-
ger-tigh
t.
Have the spark plug adjusted to the
correct torque as soon as possible with a
torque-wrench
Checking
fuel
system
，?‘
.'I'I~l:I~IIN
帽
Gaso
Ji
ne
and
its
vapors
are
highly
flam-
mable
and
explosive. Keep away
from
sparks
, cigarettes,
flames
,
or
other
sources
of
ignition.
，?‘四土，
1:1~
1I~['帽
Leaking fuel can
result
in
fire
or
explo-
sion.
• Check
for
fuel leakage regularly.
•
If
any
fuel leakage
is
found
,
the
fuel
system
must
be
repaired
by
a qualified
mechanic.
Improper
repairs can make
the
outboard
unsafe
to
operate.
Check the fuel lines for leaks
, crack,
or
mal-
lunction.
1I
a problem is lound, your
dealer
or
other qualilied mechanic should
r
白，
pair it immediately.
34
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