Maintenance
T01032GB.fm 35
5.4 Dual type air filter
5.4.1 Remove the wing nut and the air filter cover. Remove the elements and
separate them. Carefully check both elements for holes or tears and
replace if damaged.
5.4.2 Foam element: Wash the element in a solution of household detergent
and warm water, then rinse thoroughly, or wash in nonflammable or
high flash point solvent. Allow the element to dry thoroughly. Soak
the element in clean engine oil, and squeeze out the excess oil. The
engine will smoke during initial start-up if too much oil is left in the
foam.
5.4.3 Paper element: Tap the element lightly serveral times on a hard
surface to remove excess dirt, or blow compressed air through the filter
from the inside out. Never try to brush the dirt off; brushing will force
dirt into the fibers. Replace the paper element if it is excessively dirt.
5.5 Fuel tank
Fuel strainer cup cleaning
Turn the fuel valve to Off. Remove the sediment cup and O-ring, and
wash them in nonflammable or high flash point solvent. Dry them
thoroughly, and reinstall securely. Turn the fuel valve on, and check for
leaks.
5.6 Spark plug
Spark plug service
Recommended spark plug: BP6ES-11, BPR6ES-11 (NGK), W20EP-
U11, W20EPR-U11 (ND).
Caution: Never use a spark plug of incorrect heat range.
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
1. Remove the spark plug cap, and use a spark plug wrench to remove
the plug.
Warning: If the engine has been running, the muffler will be very hot.
Be careful not to touch the muffler.
2. Visually inspect the spark plug. Discard it if the insulator is cracked
or chipped. Clean the spark plug with a wire brush if it is to be
reused.
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