Yamaha YFZ 50 Owner's Manual page 95

1. Air filter element
5. Squeeze the excess solvent out of the air filter
element and let it dry. NOTICE: Do not twist
the air filter element when squeezing it.
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6. Check the air filter element and replace it if
damaged.
7. Apply Yamaha foam air filter oil or other qual-
ity foam air filter oil to the element.
TIP
The air filter element should be wet but not drip-
ping.
8. Insert the air filter element into the air filter
case.
9. Install the air filter case cover by hooking the
holders onto the air filter case. NOTICE:
Make sure that the air filter element is
properly seated in the air filter case. Never
operate the engine with the air filter ele-
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