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US-12
EBZ3050RH
Maintenance, replacement, or repair of the emission control device and
systems may be performed by any non-road engine repair establishment or
individual.
9. Maintenance
Make sure that the engine has stopped
and is cool before performing any
service to the blower. Contact with
rotating blower fan or hot muffler may
result in a personal injury.
■ AIR CLEANER
• Check the air cleaner every 25 hours of
use or more frequently if used under
dusty conditions. A clogged air filter
may increase fuel consumption while
cutting down the engine power. Never
operate the blower without the air filter
or with a deformed filter element
because unfiltered dusty air may
quickly ruin the engine.
CLEANING AIR FILTER:
1. Remove the air cleaner cover.
2. Use neutral detergent and warm water
to clean the filter element. After
cleaning, air dry the element
completely.
3. Reinstall the filter.
Never forget to attach the screen. If the
screen is not attached, the cleaner will
not seal properly and the dusts come
into the cylinder.
(1) Element
(2) Screen
■ FUEL FILTER
•A clogged fuel filter may cause poor
acceleration of the engine. Check
periodically to see if the filter is clogged
WARNING
F14
F15
F16
F13
with dirt. The filter can be taken out of
the fueling port using a small wire hook.
Disconnect the filter assembly from the
fuel pipe and unhook the retainer to
disassemble it. Clean the components
with gasoline.
(1) Screen
(2) Element
(3) Holder
(4) Retainer
■ SPARK PLUG
• The spark plug may gather carbon
deposits on its firing end with
reasonable use. Remove and inspect
the spark plug every 25 hours and clean
the electrodes as necessary with a wire
brush. The spark gap should be
adjusted to .025 in (0.6~0.7mm).
• Plug manufacturers recommend
replacing the plug twice a year to avoid
unexpected plug failure in a job.
REPLACEMENT PLUG IS A NGK
CMR7H.
• Note that using any spark plugs other
than those designated may result in the
engine failing to operate properly or in
the engine becoming overheated and
damaged.
• To install the spark plug, first turn the
plug until it is finger tight, then tighten it
a quarter turn more with a socket
wrench.
IMPORTANT
Daily Every Every Every
System/Compornent Procedure or 25 hours 50 hours 100 hours
Before use after after after
Air Filter Inspect/Clean
✔
Fuel Leaks Inspect/Replace
✔
Fuel Filter Inspect/Replace
✔✔
Fuel Line Inspect/Clean
✔
Spark Plug Inspect/Clean
✔
Muffler Inspect/Clean
✔
Muffler Spark Arrester Inspect/Clean
✔
Cooling System Inspect/Clean
✔
Screws/Nuts/Bolts Tighten
✔
Cylinder Exhaust Port Inspect/Clean
✔