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MAINTENANCE
n Foam Oil Breather Element
The foam oil breather element absorbs small amounts of liquid to pro-
tect sensors within the intake system from damage due to oil ingestion.
Check the element before each ride. Clean or replace the breather ele-
ment at each engine oil change. Clean the element if the snowmobile has
been tipped on its left side three times, either during service or while
riding, as oil may leak into the element.
The foam oil breather element is located
inside the airbox.
1. Open the hood.
2. Release the airbox cover retaining
clips and remove the cover.
3. Remove the foam breather element.
4. Wash the foam element in soapy
water, then rinse thoroughly and let
dry.
NOTE: If soap and water are not readily
available, remove as much liquid
as possible by pressing the foam
element in paper towels or a simi-
lar absorbent material.
5. Reinstall the dry foam element, or
install a new foam element.
NOTE: Always replace a foam element
that is brittle, cracked, crumbling
or otherwise damaged. For best
performance, routinely replace the
foam element with every other
engine oil change.
6. Reinstall the airbox cover. Secure all retaining clips.
CAUTION
Operating the snowmobile with a clogged foam oil breather element can
result in severe engine damage. Always clean or replace the element as rec-
ommended.
FS Element
FST Element