CHAPTER FOUR
ENGINE
The
Suzuki LS650 Savage is equipped with an
ai
r-
coo
l
ed.
4-
stroke, single cylinder engine with
a single overhead
ca
msh
af
l.
The
cy
linder head
incorporal
es
a pair
of
dual i
nt
ake and dual exhaust
va
lves with a single r
ocker
arm operating each sct
of
va
lves. Each valve has it own adjuster.
Th
e
camshaft is chain-driven from the sprocket on the
right
-ha
nd
cnd
of
the
crankshaf
l.
To
make
sta
rling
easier
for
the
large
di
sp
la
cement s
in
gle, the exhaust
va
lves are
ope
ned
s
li
ghtly during the beginning
of
the starting cycle
via an automatic decompression
syStem. This
aUlOmatic system is integrated with the starting
system and req
uir
es
no rider input. The system
does require rouline adjustment to maintain the
correct amount
of
freeplay and
is
covcrcd in
Chap
t
er
Three
.
Thi
s chapter provides complete service and
overhaul proccdur
es
including inf
orma
ti
on for
rcmoval, disasscmbl
y,
inspection. service and
r
eassem
bly
of
th
c enginc. Although thc clutch.
transmi
ss
ion and internal gearshift mechanisms arc
located within the engine. the clutch is
covered
in
Chapter Five and the transmission and internal
gearshift
me
chanism is covered
in
Chap
ter Si
lt
to
simplify this materia\.
Rcfer to
Tabl
e J
sp
ecifica
ti
ons
and
to
for
co
mplcte
Tabl
e 2
fo
r
e
ngine
tor
quc
specifications.
Table
J and Table 2 are located at
the
end
of
this chapter.
Before starting any work. fe-read
Chap
ter One
of
this book. You will do a better
job
with this
informa
ti
on fresh in yo
ur
mind.
Throughout the
teltt there is frequent men
ti
on
of
the
ri
ght-hand and left-hand s
id
e
of
thc cngine.
Th
is
refe rs to thc cngine as it sits
in
thc bikc's
frame.
not
as it sits on yo
ur
workbench.
Th
e
"righ
t-
" and " l
eft-hand"
side refers to a rider
sitting on the scat
fa
ci
ng
fo
rward.
Thr
oughout
th
e engine chaptcr thcre is r
efe
ren
ce
made to
one
specific seal
ant-
Th
ree-Bond No.
1216
. This
is
the only type
of
sealant spccified
by
U.S. Suzuki and is available from m
OS
t Suzuki
dealers.
It
is a hardening type
of
seal
am,
but it
retains its elasticity
even when subjected to engine
heat.
Other
types
of
sealant. even th
ose
manufac-
tured
by
Thr
ee-Bond . will eventually
become
brittle and there will be an oil leak.
ENGINE PRINCIPL
ES
Figur
e I explains how the engine works. This
will
be
help
fu
l when troubl
es
hooting
or
repairing
the eng
in
e.