Page 89 - Manual Oficina Polaris Sportsman 570 2014 a 2016

MAINTENANCE

CRANKCASE BREATHER VALVE / HOSE
The breather valve is on the hose that runs between the
engine and air box. Be sure breather line is routed prop-
erly and secured in place.

2

NOTE
Notice the hose adapter used in the engine breather
hose assembly.

1. Remove the left side panel.
2. Remove the hose clamps from the valve and pull the
valve out of the hoses.
3. Inspect the valve for debris. Blow gently through the
valve to check for clogging. Replace a damaged or
clogged valve.
NOTE

ETX vehicles use an In-line breather filter. Service life is
extended when the foam air box pre-filter is in place
and maintained properly. Never operate the engine
without the pre-filter.

4. Check the hoses for cracks, deterioration, abrasion,
or leaks. Replace as needed.

CAUTION
Make sure lines are not kinked or pinched.

5. Reinstall the valve and hose clamps.
CAUTION
Operation of your vehicle without a breather valve can
cause engine damage. Always reinstall the breather
valve after removing it for service.

6. Install the left side panel.

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 2.23
© Copyright Polaris Industries Inc.