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GASOLINES CONTAINING ALTERNATE FUELS
If you decide to use a gasoline containing ethanol or methanol, be sure its octane
rating is no lower than the specification. Do not use a blend that contains more
than 15% ethanol. Do not use gasoline containing methanol that does not also
contain co-solvents and corrosion inhibitors for methanol. Never use gasoline
containing more than 5% methanol, even if with co-solvents and corrosion
inhibitors.
3.3 Check the air cleaner
Check the air cleaner elements to be sure they are clean and in good condition.
Open the service cover. Remove the air cleaner cover and remove the paper air
cleaner element. Replace the element if dirty or damaged. see fig. 6.
CAUTION
Never run the engine without the air cleaner. Rapid engine wear will result
from contaminants such as dust and dirt, being drawn through the
carburetor, into the engine.
-7-
Air cleaner base
Air cleaner element
Air cleaner cover
Fig.5 The structure of air cleaner
7. Install the spark plug carefully, by hand, to avoid cross-threading.
8. After a new spark plug has been seated by hand, it should be tightened 1/2 turn
with a wrench to compress its washer.
If a used plug is being reinstalled, it should only require 1/8 to 1/4 turn after being
seated.
9. Reinstall the spark plug inspection cover and tighten the cover screw.
10. Close and latch the left side maintenance cover.
CAUTION
The spark plug must be securely tightened. An improperly tightened plug
can become very hot and possibly damage the generator.
Never use a spark plug with an improper heat range.
Spark arrester
Back cover
Fig. 19 Spark Arrestor Maintenance
7.5 Spark arrester maintenance (See Fig.19)
WARNING
If the generator has been running, the muffler will be very hot. Allow it to cool
before proceeding.
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