Yamaha GRIZZLY 660 YFM66FGW Owner's Manual page 115

ECB00440
CAUTION:
Do not twist the sponge material when squeez-
ing it.
7. Check the sponge material and replace it if
damaged.
8. Apply a quality foam air filter oil to the sponge
material.
NOTE:
The sponge material should be wet but not drip-
ping.
9. Pull the sponge material over the air filter ele-
ment frame.
10. Insert the air filter element into the air filter
case, and then install the air filter case cover
by hooking the holders onto the air filter case.
NOTE:
Be sure to connect the breather hose to the air filter
case cover.
1. Breather hose
11. Install the seat.
NOTE:
The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of unfiltered
air entering the engine.
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