Shindaiwa AHS242ef Owner's/Operator's Manual page 18

Maintenance (continued)
135 Hour Maintenance
Engine Cover
Screws
Muffler and spark arrester maintenance
If the engine becomes sluggish and
low on power, check and clean the
spark arrester screen.
WARNING!
Never operate the unit with
a damaged or missing muffler or
spark arrester! Operating with a
missing or damaged spark arrester
is a fire hazard and could also dam-
age your hearing.
18
Engine Cover
Muffler
Cover
Screw
Muffler
gasket
1. Remove the spark plug boot.
2. With a 3 mm hex wrench remove the
one muffler cover screw, three en-
gine cover screws, the engine cover
and muffler cover.
3. With a cross-head screwdirver
remove the five screws holding the
spark arrester screen and cover to
the muffler.
4. Remove the screen and clean it with
a stiff bristle brush.
Muffler Cover
Muffler
screws
Muffler
Gasket
Spark arrester
Spark arrester
screen
5. With a 4 mm hex wrench remove the
three muffler bolts and the muffler.
6. Inspect the cylinder exhaust port for
any carbon buildup.
7. Gently tap the muffler on a wood
surface to dislodge any loose car-
bon.
8. Reassemble the spark arrester, muf-
fler and engine cover in the reverse
order of disassembly.
IMPORTANT!
If you note excessive carbon buildup, con-
sult with an authorized Shindaiwa servicing
dealer.
Screws
Outlet
cover