Crankcase Breather Valve / Hose - Polaris 2014 Sportsman 570 EF Service Manual

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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.

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.

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.

Make sure lines are not kinked or pinched.

5. Reinstall the valve and hose clamps.

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

9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual

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