11
Air Cleaner Service
Clean the element every 20 hours.
WARNING
Gasoline and low-flash point solvents can be flammable
and/or explosive and cause severe burns. Clean the
element in a well-ventilated area, and take care that
there is no spark or flame anywhere near the working
areas. Do not use gasoline or low-flash point solvents to
clean the element.
NOTICE
Do not use petroleum solvent to clean element.
Do not oil the element.
Do not use pressurized air to clean or dry the element.
NOTICE
To prevent excessive engine wear, do not run the engine
with the air filter removed.
●
Remove the air cleaner cap
from the air cleaner case by
removing the air cleaner cap
screw.
●
Remove the element from the
air cleaner case.
●
Wash the element in detergent
and water, and dry it thoroughly.
●
Reinstall the element in the air
cleaner case and reinstall the
air cleaner, and tighten the
screw.
NOTICE
Improper element cleaning can result in engine damage.
Do not use compressed air to clean or dry element.
Always clean element with an approved high flash point
solvent only. Never use gasoline.
Do not operate engine with air filter parts removed.
NOTE
○
Operating in dusty condition may require more frequent
maintenance than above.
Fuel Filter Service
Clean the fuel filter element every 20 hours of operation.
WARNING
Many solvents are highly flammable and may cause
serious burns. Improper use of solvents can result in
fire or an explosion. Do not use gasoline or low flash-
point solvents to clean the fuel filter. Clean only in a
well-ventilated area away from sources of sparks or
flame, including any appliances with a pilot light.
●
Pull the fuel filter out from the
fuel tank.
●
Clean the fuel filter in a bath of
high flash-point solvent.
●
Dry the fuel filter and reinstall it
into the fuel tank.
NOTE
○
If a fuel still does not flow well after the cleaning, replace the
fuel filter with new one.
Spark Plug Service
Clean or replace spark plug and reset gap every 50 hours in
use.
WARNING
Engines can become extremely hot during normal
operation. Hot engine components can cause severe
burns. Stop the engine and allow it to cool before
checking spark plugs.
●
Take the spark plug cap with
fingers, and pull it up.
●
Remove the spark plug by
using a suitable plug wrench.
●
Clean the electrodes (B) by
scraping with a wire brush to
remove carbon deposits and
wetness.
●
Inspect for cracked porcelain
or other wear and damage.
Replace the spark plug if
necessary.
●
Check the spark plug gap and reset it if necessary.
The gap must be between 0.6 and 0.7 mm. To change the
gap bend only side-electrode, using a spark plug tool.
●
Install and tighten the spark plug to 14 N·m (1.4 kgf·m).
●
Fit the spark plug caps on the spark plug securely.
●
Pull up the spark plug cap lightly to make sure of the
installation of the spark plug cap.
Recommended spark plug: NGK BPMR7A
A
C
B
A. Air Cleaner Cap
B. Air Cleaner Case
C. Element
A
B
C
A. Fuel Filter
B. Fuel Tank
C. Fuel Tube
A
B
A. Spark Plug Gap
B. Electrodes
