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124
16.
Apply
clean
engine
oil
to
the threads
and
to
the
underside
of
the
four
cylinder
block
base
boll
flanges.
Install
the
four bolls
and
tighten
finger-tight.
17.
Use a
piece of wire
to
pull
the cam shaft
chain
up
through
the
top of the cyli
nder
block
chain
cav-
ity.
Pull
up
on the
cams
haft chain and
make sure it is
properly meshed with
the
crankshaft
drive
sprocket.
18.
Rotate the cranks haft
until
the piston
is
at
bot-
tom
dead
center.
Reattach
the
chain
to
the exterior
of the
eng
ine.
19.
Tighten
each of the fou r
cy
linder block
base
bolls
(Figur e
101)
in
a
crissc
ross
pattern to the
torque specification listed
in
Tab le
3.
20.
Install the two 6
mm
bolls
(Figu
re
97)
onto
the
right-hand
side
of the
cylinder
and
tighten to the
torq ue
specification
listed
in Ta
b le 3.
2
1.
Co
nnec t
the coolant hose
onto the
cy
linder
inlet
fitting.
Move the
clamp
into
position
and
tighten the
screw (B
,
Figure
95
)
securely.
22.
Install
both
externa
l
oil
pipe
s
to
the
cylinder
block and
crankcase. Install
the banj o boll and
new
sca ling
washers
(Figure
119) at
each
end of
the
oil
pipe
. Refer
to Figure 120
and
Figu re
121.
Tighten
the banjo
bolls
to the
torque
specification
listed in
Ta
ble
3.
23.
Insert
the
camshaft
front
chain
guide
(Figure
98)
down through
the camshaft chain
tunnel. Make
surethe
lowerend
seats
correctly
inthe guide
recess
in
the
crankcase (Figu re
122)
and
into the
recepta-
cle at the
top (Figure 123) of
the cylinder block.
24.
Install
the
cylinder
head , rocker
arm
assembly
and
cy
linder
head
cover
as described
in
this
chapter.
P
ISTON
AND (' ISTO N RI
NG S
The piston
is
made ofan aluminum
alloy.
Th
e
pis-
ton pin is made of
steel and
is
a
precision
fit
in
the
piston pin bo
re.
Th
e
piston pin
is
held
in
place
by a
clip
at
eac
h end
of the
bore
in
the
piston.
Pis Ion Removal
I. Remove the
cylinder head cover,
cy
linder
head
and
cy
linder block
as described
in
this
chapter.
2.
Befo re remo ving the piston,
hold
the
rod
tightly
and
rock the piston
(Fig
ure
124) to det
ect excessive
cl
earance between the
piston.
piston pin
and
co
n-
necting rod.
Do not
confuse
the no
rmal
sliding
mo -
tion
of the
piston
on the pin
with
rocking
motion.
Any
perceptible
rocking motion
indicates
wear
to
C
lI APT E R
FOU R
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