Operating instructions

SPARK ARRESTOR MAINTENANCE
NOTE: The exhaust can onHyflow in one direction: AWAY
from the engine. Pay chose attention when
disassemMing the muffHerso you can put it back
together correctHy. FaiHureto do so will damage
the unit and may cause serious personaH injury.
1. Remove air fiHterimuffHercover. Refer to Removing
the Air Filter/Muffler Cover.
2. Locate the muffHer, but do not remove it. Find the two
(2) screws on the bottom of the muffler (Fig. 29).
These two screws hoHdthe Spark Arrestor Hood
AssemMy and the spark arrestor screen to the
bottom of the muffler. Remove the two (2) screws
using either a torx #20 or flat Made screwdriver.
3. Using a small fiat Made screwdriver, carefully pry up
the spark arrestor screen from the recessed hoHe,
taking care to notice that the "raised" part of the
spark arrestor screen is inside the recessed hoHe.
Remove the spark arrestor screen from the muffler.
4. CDan the spark arrestor screen with a wire brush.
Replace it if it is damaged, or if you are unable to
clean it thoroughly.
5. Reinstall the spark arrestor screen by putting the
"raised" portion of the screen inside the recessed
hole of the muffler. Make sure that the spark arrestor
screen fits flat against the muffler.
6. Place the spark arrestor plate on top of the spark
arrestor with the "raised" side up and the opening
facing towards the engine (Fig. 29).
7. Place the spark arrestor hood on top of the spark
arrestor plate with the "raised" side up and the
opening facing AWAY from the engine (Fig. 29). Verify
that the exhaust will be directed AWAY from the
engine.
Mumer
Engine
Recessed Hole
Spark Arrestor Hood
Assembly Incmudes:
Spark Arrestor Plate
Spark Arrestor Hood
and Screws
Spark Arrestor
Screen
Spark Arrestor
Plate
"-- /
Spark Arrestor
Hood
"\
?
Screws
Fig. 29
8. Replace the two screws you removed in Step 2 and
tighten them securely.
9. Reinstall the air filter/muffler cover.
_, _N G: If the exhaust
deflector assembly is
not tightened securely, it could fall off causing
damage to the unit and possible serious
personalir_ury,
CARBURETOR ADJ USTMENT
The idle speed of the engine is adjustable through the air
filter/muffler cover (Fig. 30).
NOTE: Careless adjustments can seriously damage your
unit. An authorized service dealer should make
Check Fuel Mixture
Old and/or improperly mixed fuel is usually the reason
for improper unit performance. Drain and refill the tank
with fresh, properly-mixed fuel prior to making any
adjustments. Refer to Of and Fuel Information.
Clean Air Filter
The condition of the air filter is important to the operation
of the unit. A dirty air filter will restrict air flow and
change the air/fuel mixture. This is often mistaken for an
out of adjustment carburetor. Check the condition of the
air filter before adjusting the idle speed screw. Refer to
Air Filter Maintenance.
Adjust _die Speed Screw
If, after checking the fuel mixture and cleaning the air
filter, the engine still will not idle, adjust the idle speed
screw as follows:
1. Start the engine and let it run at a high idle for a
minute to warm up. Refer to Starting/Stopping
Instructions.
WARNING: The cutting
attachment may spin
during idle speed adjustments. Wear
protective clothing and observe all safety
instructions to prevent serious personal injury.
\
Id_e Speed Screw
\
\
\,
Fig. 30
15