Thermostat Removal/Installation - Polaris 1999 Sportsman 400 Service Manual

COOLl:'olG SYSTEMS 211
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•
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o
T IIE RMOSTAT
Rem oval/In stall ati on
The thermostat is located in the cylinder head un-
der the coo lant outlet housing.
I. Drain the cooling system as described in Chapter
Three.
2. Place a shop cloth under the coo lant hose con-
nectio n at the
thermostat
cover. So me
residual
cool-
ant may drain out.
3. Loosen the cla mp on the coo lant hose (A, Figure
44), detach the hose from the thermostat fitting.
NOTE
Thejh l/lJI\'iJlg photographs are
Sl lO U'1l
with the engine removed fro m tile
f rame to better illustrate the steps.
4. Remove the two bolts securing the thermostat
cover (B, Figure 44).
5. Usc a rubber mallet and lap the cover to loo sen
the gasket, then remove the cover.
6. Withdraw the thermostat (A, Figure 45 ) from
the cavity in the cylinder head.