Filter
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A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after e very
5 hours of operation or yearly, whichever
comes first.
1. Clean the cover and the area a round it to
keep debrisfrom fallinginto thecarburetor
chamber when the cover is removed.
NOTE: Move choke lever to RUN position
before opening air filter cover.
2. Remove parts as illustrated.
NOTE: Do not clean filter in gasoline or
other flammable solvent. Doing so can
create a fire hazard or produce harmful
evaporative emissions.
3. Wash the filter in soap and water.
4. Allow filter to dry.
5. Apply a few drops of oil to the filter;
squeeze filter to distribute oil.
6. Replace parts.
REPLACE SPARK PLUG
Replace spark plug each year to ensure the
engine starts easier and runs bette r. Set
spark plug gap at 0.6 mm. Ignition t im ing is
fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Remove spark plug fromcylinder and dis-
card.
3. Replace with Champion RCJ-6Y spark
plug and tighten securely with a 19 mm
socket wrench.
4. Reinstall the spark plug boot.
REPLACE FUEL FILTER
To replace f uel filter ,drain unitby runningit dry of
fuel, then remove fuel cap/retainer assembly
fromtank.Pullfilterfromtank andrem ove itfro m
fuelline. Installnew fuelfilter onfuel line;reinstall
parts.
Fuel Line
Fuel Filter
CHECK MUFFLER MOUNTING
SCREWS
Once each year, ensure muffler mounting
screws are secure and tightened properly to
prevent damage.
Muffler
Mounting
Screw
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used, carbon deposits build up
on the muffler and spark arresting screen,
and must be removed to avoid creating a fire
hazard or affecting en gine performance.
Hood
Screws
Spark
Arresting
Screen
Muffler Cover
Replace the spark arresting screen every 50
hours ofoperation orif any dam ageor breaks
in the screen are noted.
NOTE: Do not attempt to clean the spark
arresting screen.
1. Remove 3 screws from muffler cover.
Remove muffler cover.
2. Loosen and remove 4 screws from the
muffler hood.
3. Remove the m uffler hood and spark arrest-
ing screen.
4. Install new spark arresting screen.
5. Reinstallmufflerho odand4 screws.Tight-
en screws securely.
6. Reinstall muffler cover and 3 screws.
Tighten securely.
NOTE: If any part of the muffler is cracked,
broken or damage d, we recommend that
the muffler be replaced.
CARBURETOR ADJUSTMENTS
The carburetor has been carefully set at the
factory.Adjustments maybenecessary i fyou
notice any of the following conditions:
S Engine will not idle when the throttle i s re-
leased.
Idle Speed Adjustment
Allow enginetoidle.Adjustspeeduntilengine
runs without stalling (idle speed too slow).
S Turn idle speed screw clockwise to in-
creaseenginespeedifenginestalls ordies.
S Turn idle speed screw counterclockwise to
decrease engine speed.