5.
The screen can be cleaned using a non-flammable
solvent and stiff wire brush.
Note: If any part cannot be thoroughly cleaned, it must
be replaced.
6.
To install insert the spark arrester into the exhaust
outlet while aligning the holes in the arrester
flange and outlet for the retaining screw. Then
install the screw.
7.
Reinstall the cylinder and air filter covers.
Spark Arrester
Exhaust Muffler
Maintenance Interval
The muffler should be inspected and cleaned after each
JOO hours of use.
Muffler Maintenance
[M30BK-S]
I.
With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover.
2.
Twist the high tension lead boot on the spark plug
back and forth a couple of times to loosen the
boot, then pull the boot off of the spark plug.
3.
Loosen the knob and lift off the cylinder cover.
4.
Remove the spark arrester (see spark arrester
maintenance), Clean the muffler with a stiff brush.
IMPORTANT: Don't use solvent for deaning
inside of muffler, because of the catalytic con
verter in
muffler.
Ile careful not
to
allow
any dirt
or debris to
fall into
the exhaust port, as this can cause engine damage.
5.
Reinstall the spark arrester and tail onto muffler,
then reinstall and tighten the two socket head
screws.
6.
Reinstall the cylinder cover and the air filter cover.
[M42BK]
1.
With the engine at ambient (room) temperature,
loosen the knob and remove the air filter cover.
2.
Loosen the knob and lift off the cylinder cover.
3.
Withdraw the spark arrester using a suitable pair
of pliers.
Note: Do not crush or distort the spark arrester
flange during removal.
4.
Remove the three socket head screws holding the
muffler body from cylinder.
5.
Clean exhaust port of cylinder, exhaust outlet of
muffler and spark arrester with safety solvent and
stiff brush.
IMPORTANT: Ile careful not to
allow any
dirt
or debris to fall into the exhaust ports, as this
can cause engine damage.
6.
To reassemble the muffler body to the cylinder,
apply Removal Loctite to the three socket head
screws, then reinstall and tighten the three screws.
7.
Reinstall the spark arrester onto the muffler body,
then reinstall and tighten the screw.
8.
Reinstall the cylinder and air filter covers.
Muffler Body
' Removal Loctite
-US-38-
