Engine Lower End; Engine - Polaris 1999 Sportsman 400 Service Manual

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CHAPTER
FIVE
ENGINE LOWER END
II
Thi
s
chap ter cove rs
serv
ice
and overha ul pro
ce-
dur
es
for
the lower
end engine components. Speci-
fication
s
are in Table
I and
Ta
ble
2 at the
end
of the
chapter.
One of
the most important aspect
s
ora success
ful
engi
ne
over
haul
is prepa rati
on.
Read a
ll oft he
pro
-
ce
dures
before starting
and
review the
info rmat ion
in Chapte r
One regardin g
tools
and
method s. The
accurate
use
of
preci
sion measur
ing
eq uipment
is
vita
l
to a
successful
ove
rhaul.
Before
remo
ving
the
eng
ine
and disassembling the c
ran
kcase,
deg rease
the eng ine
and
frame.
Have
all
the
nec essary hand
and
speci
al
too ls ava
ilable.
Ma
ke
sure the wo
rk
a
rea
is
clean and
well
lit.
Identify
and stor
e
ind
ividu al
parts
and assemblies
in appropria te
storage
co
nta in-
ers
(Figure 1).
References
to the left
and
righ t
sides
refer to the
position
ofthe part
s as viewed
by
the rider
sitting
on
the sea
t
faci ng for
ward.
not
ho w the
engi ne
may
sit
0
11
the
wor
kbench.
ENG
I NE
Th
e following procedure describes remova
l
and
installat io
n.
I
f service work
requi
res
o
nly
the rc-
moval of
a
top
end
co
mpone nt
(Chapter Four),
lea ve the engin e
in the
frame
and
disassemble
the

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