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6. 7
PERIODICAL
ADJUS
(c)
ec_::e ·-e
engine
speed which
has
gone up
i- -
·
o
'he
specified RPM by regulating
the
'!-·
-
le
stop
screw.
ldl
Ai
his
thrott le
st
op scr ew setti ng
, r
echeck
t he
carburetor
adiustment
by manipulat ing the air
scr ew.
lei
After the idling
adiustment
has
been
co mp
let
ed,
check th
e
carbur et
o
r
by snapping
th
e
thr
o
ttl
e
and also c heck the thro
tt
le response.
The ai
r
scr
ew
shou
ld be
,78
to
7(
t ur
n
of
t he
specified
setting.
(Note)
A
ll
ad iustment sho uld be
ma
de
after th
e engine
has
attained
operating
t
emperature
.
B.
LUBRICATING
The
purpose of
lubricat
ion
is
to
prevent dir
ect
sur
face to surface
contact
of the
movi
ng
parts
by
providing a
film
o
f
oi
l
between
th
e surfaces and
t
here-
by, red ucing friction
and preventing wear.
It
also
serves
to
coo
l t
he parts
from the
heat pr
oduced
by
fr
iction
.
Furth er,
t
he
lubr
icant
penetrat
es between
the
piston
and
cylinder
to
for
m
a
n o
il
film which
act
as a seal
t
o
maintain
t
he
cylinder
pressure.
1. PARTS NOT REQUIRING PERIODIC OIL
CHANGE OR LUBRICATION
There are
some parts which only
require
lubrication
w
henever
the pa
rts
are
disassembled
for
repair
or
r eplacement.
Steer
ing stem
stee
l ba
lls
a
nd
cone
ra
ce}
Thro ttle
g rip
G
r
ease
Main stand
2.
ENGINE OIL CHANGE
Change· o
il
at
300
km (
185 mil
driving
and
at
every
1
000 km 1620
mi
l
th
ereafter.
1.
Oil Change
a
.
Remove
t
he
oil
cap
and
drain
t
he engine
com-
plete
ly o
f
o
il
by
unscrewing
t
he
p lug
at
the
bo tto
m
of
t
he
engin
e.
(Fig.
6-
28,
6-
29)
(Note)
The
o
il
shou
ld be drained
whil
e the
engine is
still
warm
.
b. The proper
o
il leve
l
is
indicated by the
oil
between
t
he
leve
l
markers
o
n
t
he
gaug
e when
checked
without scr ewing t
he
cap
down.
(Fig.
6-
30)
O
i
l
capacity
0.8
.e
(
1.7
U.S.
pt,
1.4
Imp ptl
After
overhau
ling the
engin
e,
fi
ll
crankcase
wit
h
0
8
.e
(
1
.7
u.s.
p
t
)
of
o
il
how
eve
r
during
o
il
·
1.4
Imp
pt
'
'
changes
r
efill
acco
rding t
o
th
e
level
gauge.
Figure 6-
28.
Removing
drain bolt
·figure
6-
29.
O
il cap
Oil
level
sz..e
f
igure 6-30.
Oil le
,
el
gauge
93
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