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MAINTENANCE
WARNING: Avoid to uching muffler
unless engine and muffler are cold. A hot
muffler can cause serious burns.
WARNING: Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
CHECK FOR LOOS E
FASTENERS AND PARTS
S Muffler
S Spark Plug Boot
S Air Filter
S Housing Screws
CHECK FOR DAMAGED OR
WORN PARTS
Contact an authorized service dealer for re-
placement o f damaged or worn parts.
S Fuel Tank. Discontinue use of unit if fuel
tank is damaged or leaks.
S Vacuum Bag -- Discontinue use of vacuum
bag if it is torn or damaged.
INSPECT AND CLEAN UNIT & LABELS
S After each use, inspect complete unit for
loose or damaged parts. Clean the unit and
decals using a dam p cloth with a mi ld deter-
gent.
S Wipe off unit with a clean dry cloth.
CLEAN AIR FILTER
Air F ilter Cover
Air Filter
Button
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation or yearly, whichever
comes first.
1. Clean the cover and the area around it to
keepdebrisfromfallinginto 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 better. Set
spark plug gap at 0.6 mm. Ignition timing is
fixed, nonadjustable.
1. Twist, then pull off spark plug boot.
2. Removespark plug from cylinder 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 replacefuel filter ,drain unitby runningitdryof
fuel, then remove fuel cap/retainer assembly
fromtank.Pullfilter fromtank andremove itfrom
fuelline. Installnew fuelfilter onfuelline; reinstall
parts.
Fuel Line
Fuel Filter
CHECK MUFFLER MOUNTING
SCREWS
Once each year, ensure muf fler 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 engine performance.