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SPARK
PLUG
CLEANING AND AD JUSTMENT
The
NGK
C 7HS
or
ND
U-
22
FS
plug is
used as
standard
equipment on
this
model.
Servici
ng
of
the spa
rk
plug is
as
fol
lows.
·1. Detach the
high
tension
cord from the
spnrk
p
lug and
r
emove
th
e
spark
plug with the special
wrench
provided
in 1he
tool
kit.
2
lnspccl
the
elec1
rodcs and center porcelain
or
lhe
spark
plug
for
deposits,
errodcd
electrodes, or
·carbon fouling.
If
the
spark plug deposits
are
heavy,
or
the
electrodes
appear 10 be erroded
excessively, replace
the
spark
plug
with a
new o ne.
If
th
e
spark plug
is
carbon or
wet fouled,
the
plug
ca
n somet
imes
be cleaned
w
il
h a
stiff
wire
such
as
a pin
.
3.
AdJUSI
1hc
spark
p lug
gap
I
to
0.02-1
0.028 inch
(0.6
0.7
mm).
The
gap
can
be measured with a
thick-
ness
ga
uge.
The
adjustment
,s
made
by
bending
th
C'
nega
li
ve
(grounded)
electrode
·
4.
When
installing the
spark
plug,
do
not
over tighten.
Note:
1.
Never
use
,1n im pro
per
hea
l
ra nge spark
plug.
'2.
D
o
no1
,1
t1empl
to
dry
or
rernovc
soo
t
from
lhe
spark
plug by
burning.
28
,
Spa,k
plug gap
i
Neg.u1ve electrode
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