Coolant Inspection - Polaris 1999 Sportsman 400 Service Manual

LU BRIC ATION, MAINTENANCE AND T UNE-UP 75
if necessary to remove all dirt and rinse in clean wa-
ter. Thoroughly dry the pre-filter prior to installation.
11. Install the pre-fi lter onto the air filter clement.
12. Inspect the air box (Figure 58) for any debris.
Thoroughly clean ou t the air box.
13. Install the air filter clement assemb ly onto the
II
airbox intake and tighten the clamp screw securely.
Make sure the clamp is seated correctly and that the
cla mp screw is tight (A , Figure 55).
14 . Inspect the air fi lter e lement cover gasket seal
(Figure 59) for damage or deterioration . Replace if
necessary.
15. Check the air intake holes (A , Figu re 60) in the
rear len side of the front fender for any debris that
may obstruct intake air now.
16. Install the air fi lter element cover and seal.
Make sure
it
is seated correctly and secure
it with
the six spring clips. Make sure the air intake tube is
positioned correctly within the rear portion of the
front fender (B, Figure 60).
17, Check the air box sediment drain as follows:
a. At the rear of the air box, place a rag under the
drain cap and remove it (Figure 61). Drain
out water and other debris co llected in the air
box .
b. Reinstall the
drain
cap and make sure the
clamp is in place.
18. Insta ll the seat as described in Chapter Fifteen.
Coolant Inspection
The ATV is equ ipped with a liquid cooling sys-
tem. The cooling system is small; even a slight leak
can cause the engine to overheat. Therefore, check
the coolant level and condition of the radiator and
hoses frequently.
WARNING
Ne ver remo ve the radiat or cap, ope n
the coo lant dra in or disconnect any
hose wh ile the engine is hot. Scalding
fluid
and steam
m(~y
be blown out
1111 -
derpressure and ca use se rious injury.
Check the following items once a year, or when-
ever troubleshooting the cooling system. lf the test
equipment is not available, have the tests
per forme d
by a Polaris dealership, rad iator shop or service sta-
tion.
I. Remove the front fender cover as described in
Chapter Fifteen.