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Assemble
the
cylinderhead.
10
mrn
flange
nut
..........
4
pcs.
Washer
.................
4
pcs.
NOTE: Install the intake and exhaust
valves.
On the
intake side there
is
a
stem
seal.
NOTE: Insert the push rod. (Exhaust
is
on the side
of
the
gear case.) Pay attention to the
valve
facing,
UP-
ward or downward, and direction
of
intake and ex-
haust.
NOTE: Install the rocker arm
to
the cylinder.
It
is
advisable to insert the rocker shaft before clamp-
ing the head.
(See
Fig.
47
.)
NOTE: Clamp the head to the cylinder.
Apply "Three Bond
#I
21
5"
to two pieces
of
the stud
bolt (on the side of the rocker
shaft)
and upper and
reverse
surfaces
of
the
washer, and then tighten
the
nuts.
[Tightening torque:
350
kg-cm]
.
Tightening of the nuts
is
to be done in three rounds,
I.
e.:
1
st
round
...............
100
kg-cm
2nd round
...............
200
kg-crn
3rd round
...............
330
-
350
kgcm
NOTE: Fasten tightly the plate (push rod sleeve).
6
mm
nut
...............
4
pcs.
(See
Fig.
48.)
15)
Adjust
the
valve
clearance.
NOTE: Turn the flywheel by hand
to
the compres-
sion
at
TDC (top dead center). At TDC
the
camshaft
cranking pin stands vertically.
NOTE: Adjust the
valve
clearance to anywhere be-
tween
0.07
-
0.10
mm (both intake and exhaust),
when the engine
is
cold.
(See
Fig.
49.)
Fig.
47
I
DECOMPRESSiON
\,
ADJUSTING
SCREW
Fig.
49
-
25
-