Clean Air Filter; Replace Spark Plug - Craftsman 79481 - Professional 28cc 2 Cycle Gas Blower Operator's Manual

CLEAN AIR FILTER
A dirty air filter decreases engine per-
formance and increases fuel consump-
tion and harmful emissions. Always
clean after every 5 hours of operation.
Air Filter
Knob
Replace the spark arresting screen
every 50 hours of operation or if any
damage or breaks in the screen are
noted.
NOTE: Do not attempt to clean the
spark arresting screen.
1. Loosen and remove 4 screws from
starter cover housing.
/
Air Filter Cover
Cleaning the air filter:
1. Clean the air filter cover and the
area around it to keep debris from
falling into the carburetor chamber
when the cover is removed.
2. Loosen and remove air filter cover
by turning knob counterclockwise.
3. Remove air filter.
NOTE: Do not clean filter in gasoline
or other flammable solvent. Doing so
can create a fire hazard or produce
harmful evaporative emissions.
4. Wash the filter in soap and water.
5. Allow filter to dry.
6. Replace parts.
NOTE: An air filter that has been used
for a long time can not be cleaned
thoroughly. The air filter must be re-
placed if it can not be cleaned or be-
comes damaged.
REPLACE SPARK PLUG
Replace spark plug each year to ensure
the engine starts easier and runs better.
Set spark plug gap at 0.025 inch. Igni-
tion timing is fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug from cylinder
and discard.
3. Replace with Champion ROJ-6Y
spark plug and tighten securely
with a 3/4 inch socket wrench.
4. Reinstall the spark plug boot.
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
_ik WARNING: The muffler on this
product contains chemicals known to
the State of California to cause cancer.
As the unit is used, carbon deposits
build up on the muffler and spark ar-
resting screen, and must be removed
to avoid creating a fire hazard or af-
fecting engine performance.
Starter Cover _ _ __,'_/_,_
2. Remove starter cover housing and
muffler cover.
3. Loosen and remove 4 screws from
the muffler hood.
Spark Arresting Screen
4. Remove the muffler hood and spark
arresting screen.
5. Install new spark arresting screen.
6. Reinstall muffler hood and 4
screws. Tighten screws securely.
7. Reinstall muffler cover.
8. Reinstall starter cover housing and
4 screws. Tighten screws securely.
NOTE: If any part of the muffler is
cracked, broken or damaged, we rec-
ommend that the muffler be replaced.
CARBURETOR ADJUSTMENT
The carburetor has been carefully set
at the factory. Adjustments may be
necessary if you notice any of the fol-
lowing conditions:
• Engine will not idle when the throttle is
released.
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