SELVA MARINE Kingfish 25, Service Manual

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7
2. Check the spark plug. Replace if the
electrodes are eroded, there is carbon or
other deposits.
3. Check the spark plug gap
b
. Replace if
out of specification.
Checking the cylinder head anode
1. Check the anodes. Replace if eroded.
Clean if there is grease, oil, or scales.
NOTICE: Do not apply grease, oil, or
paint to the anodes.
Assembling the cylinder head
Do not reuse a gasket, oil seal, O-ring, or
valve seal, always replace it with a new
one.
1. Install a new valve seal
1
.
2. Install the valve
2
, valve spring seat
3
,
valve spring
4
, and valve spring retainer
5
in this order, and then attach the spe-
cial service tools
6
and
7
.
TIP:
Face the wide-pitched valve spring end
a
,
identified by the paint mark, toward the valve
spring retainer
5 .
3. Compress the valve spring, and then
install the valve cotters
8 .
Specified spark plug: DPR6EB-9 (NGK)
Spark plug gap
b
:
0.8–0.9 mm (0.031–0.035 in)
a
b
Valve spring compressor
6
:
90890-04019
Valve spring compressor attachment
7
:
90890-06320
E
1
a
5
4
3
2
6
7
E
E
Camshaft and valve