Perio
d
ic maintenance an
d
a
d
justment
7-11
7
4. Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.
TIP
The sponge material should be wet but
not dripping.
5. Insert the sponge material into the
air filter case.
NOTICE:
Make
sure that the spon
g
e material is
properly seate
d
in the air filter
case. The en
g
ine shoul
d
never
b
e operate
d
without the spon
g
e
material installe
d
, otherwise the
piston(s) an
d
/or cylin
d
er(s) may
b
ecome excessively worn.
[ECA15622]
6. Install the air filter case cover by
installing the screw.
7. Install the seat.
EAU41222
Cleanin
g
the spark arrester
The spark arrester should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10981
Always let the exhaust system
cool prior to touchin
g
exhaust
components.
Do not start the en
g
ine when
cleanin
g
the exhaust system.
1. Remove the tailpipe by removing
the screw, and then pulling it out
of the muffler.
2. Tap the tailpipe lightly, and then
use a wire brush to remove any
carbon deposits from the spark
arrester portion of the tailpipe and
inside of the tailpipe housing.
Recommen
d
e
d
oil:
Yamaha foam air filter oil or other
quality foam air filter oil
1. Tailpipe
2. Screw
3. Muffler
1
2
3
UBSL10E0.book Page 11 Wednesday, April 6, 2022 10:26 AM
