Cleaning The Spark Arrester - Yamaha WR25RB Owner's Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
1 become excessively worn.
8. Place the holding clip in the origi-
nal position.
2
9. Close the air filter case cover, and
then install the screw.
3
10. Install the panel.
To clean the air filter check hose
4
1. Check the hose at the bottom of
the air filter case for accumulated
5
dirt or water.
6
1
7
8
9
1. Air filter check hose
2. If dirt or water is visible, remove
the hose, clean it, and then install
it.

Cleaning the spark arrester

The spark arrester should be cleaned
at the intervals specified in the periodic
[ECA10481]
maintenance and lubrication chart.
WARNING
Always let the exhaust system

cool prior to touching exhaust
components.
Do not start the engine when

cleaning the exhaust system.
1. Remove the spark arrester cap by
removing the spark arrester cap
bolts.
1
1. Spark arrester cap
2. Spark arrester cap bolt
2. Remove the tailpipe by pulling it
EAU45353
3. Tap the tailpipe lightly, and then
EWA10980
2
1. Tailpipe
2. Spark arrester
3. Gasket
4. Install the gasket, and then insert
5. Install the spark arrester cap by in-
7-20
out of the muffler, and then remove
the gasket.
use a wire brush to remove any
carbon deposits from the spark ar-
rester portion of the tailpipe and in-
side of the tailpipe housing.
1
3
2
the tailpipe into the muffler and
align the bolt holes.
stalling the bolts, and then tighten-
ing them to the specified torque.