Yamaha WR450F Owner's Manual page 58

PERIODIC MAINTENANCE AND ADJUSTMENT
with solvent, and then squeeze the
remaining solvent out. WARNING!
Use only a dedicated parts
1
cleaning solvent. To avoid the
risk of fire or explosion, do not
use gasoline or solvents with a
2
low flash point.
To avoid damaging the foam
3
material, handle it gently and
carefully, and do not twist or
wring it.
4
[ECA10511]
5
6
7
1
8
1. Air filter element frame
9
2. Sponge material
NOTICE:
[EWA10431]
4. Apply oil of the recommended type
to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.
TIP
2
The sponge material should be wet but
not dripping.
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
5. Pull the sponge material over the
air filter element frame.
TIP

Align the projection on the air filter
element frame with the hole in the
sponge material.

Apply the lithium soap base
1. Projection
2. Hole
3. Matching surface
TIP
Align the projection on the air filter ele-
ment with the hole in the air filter case.
6-15
grease on the matching surface on
the sponge material.
2
1
3
6. Insert the air filter element into the
air filter case. NOTICE: Make sure
that the air filter element is prop-
erly seated in the air filter case.
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10481]