Fuel Hose Inspection; Fuel Filter Replacement; Steering System And Front Suspension Inspection - Polaris 1999 Sportsman 400 Service Manual

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LUBRICATION,
MAII\TEI\ANCE A;IlD TUI\E·
UP
79
5. On models so equipped,
remov
e
the
plug
and
wash
er
(F
igu re
70) at
the base
o
f
the
muffl
er.
Drain
out any
re sidue.
Install
a
nov . . . .
wa
sher and
tighten
the
plug
securely.
Fuel
Host:'
Inspection
Inspect
the
fuel
hoses
(Fig
ure
7
1)
from
the
fuel
tank
to the
fuel shutoff
valve
(A), the
fuel
pump (B)
and
the
carburetor.
Replace
any
hoses
that
are
cracked
or starting to
deteriorate.
M
ake sure
the
small
hose
clamps
are in
place
and secure.
WARNING
"oJ
damaged or deteriorated [
uel
line
presents
(J
vel)' dangerousfire
hazard
to
both
tire
rider and
tire
ATV
Fuel
Filte
r
Rep lace me nt
An inlinc
fuel
filter
is
located between the fuel
pump
and
the
carburetor,
The fue
l
filter traps
parti-
d
es that
might
otherwise
enter
the
carburetor.
Min-
ute
particles can
cause
the
float
valve
and
fuel
inlet
needle to
stick or
clog o
ne of
the
je
ts.
I
.
Remove
the fro
nt
fender
as
described
in Chapter
Fin een.
2.
Disconnect
the
negative battery
cable
as
de-
scribed in
this
chapter.
3.
Tum the fuel
valve
to
the
OFF position.
4. Place
several
cloths
under the
fuel
filter.
as gaso-
line
still
present
in the fuel
line
will drain
out
once
the
fuel
filter
is
removed.
5.
Below
the len
side
o
f
the
carburetor,
loosen one
of
the
clamps securing the
fuel
filter
(F
igure
72) to
the
outlet
hoses.
6. Disconn
ect
that
hose a
nd
plug
it to
stop
the
Ilow
of
gaso line,
7. Disconn ect the
othe
r fuel line
from the
fuel
filter
and
plug
it.
8. Remove
the
fuel
filte
r.
9.
Position
the new
fuel
filter
with
thearrow point-
ing
in the direction of fuel
flow. Insta
ll
both
fuel
hoses
and tighten
the
clamps
securely.
10.
Turn
the
shut-off
valve
to
the
ON
position and
check
for fuel
leakag e.
I
I.
Install the
front
te nder
as
deser
ibed
in
Chapter
Fifteen.
Steeri
ng
System and
Front Suspension
l
nsp ectl on
Check
the
steering system
and
front
suspension at
the
intervals
listed
in
Table
1
following
any
hard
spill
or
collision
or
if a
problem
with
opera tion is
suspected.
I.
Park
the
vehicle
on
leve
l
ground
and
set
the
parking
brake.
2.
Visually inspect
all
components of
the
steering
and front
suspension for
obvio
us
problems.
Pay

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