Air Filter Element - Polaris 1999 Sportsman 400 Service Manual

74
A ir F ilter Element
Remove and repla ce the air filter at the interva l
indicated in Table
I.
Repl ace the ele ment imm ed i-
ately
if it
is damaged or starting to deteriorate.
Th e air filter remo ves du st a nd abrasive parti cles
before the air enters the carburetor and the engine.
Without the air filter, very fine particle s could enter
into the engine and cause rapid wear of the piston
rings. cylinder boresand bearings. They also might
clog small passages in the carburetor. Neverrun
the
ATV without the c lement insta lled .
I. Place the ATV on level gro und and set thc park -
ing brake.
2. Remove the scat as de scribed in Chapter Fifteen .
3. Thoroughly cle an any road debri s from the area
surrounding the air filter air box cover.
4 . Unhook the spring clip sec uring the air filter air
box cover and remove the cover
(F igure
S-I).
5. Loo sen the clamp screw (A, Figure 55) and rc-
move the air filter element (13, Figu re 55) from the
air box.
6. Place a clean shop cloth into the opening in the
air filter air box to prevent the
entry
of debris.
7. S lide off' the foam pre-filter, or pre-fi lter sleeve
(A, Figure 56) from the air li lter e lement (13, Fig-
ure 56) .
NO TE
If
the air fi lter element is extremely
d irty or
if
there art!. allY holes ill the
el-
ement. wipe oul the interior of the air
box with a shop rag dampen ed
ill
cleaning so/re nt.
Remove
a llY
debris
that may have passed tbrougls a bro-
ken
elem ent.
8. Ge ntly tap the air filter eleme nt to loosen the
tra pped dirt and du st.
C IIA PTER T II REE
®
t
B
NOTE
Clea ning
the airfitter
element is not
recommended . Replace the air fi lter
eleme nt
if dirt)' or damaged.
9. Thoroughly and carefu lly inspect the filter e le-
ment (Figure 57). Ifit is tom or broken in any area.
replace the air filter element. Do not run the ATV
with a damaged clement as it may allow dirt to enter
the engine. If the c lement is good, it can be used until
replacement
is
required.
10. Clean the foam pre-fi lter. or pre-filter sleeve,
with warm water and mild soap.
Wash seve ral
times