AIR CLEANER
Inspection
Cleaning
Single-Filter Element Type
Dual-Filter Element Type
ELEMENT
AIR CLEANER CASE
AIR DUCT
TAB
NUT
AIR CLEANER COVER
PAPER ELEMENT
FOAM ELEMENT
GASKET
AIR CLEANER BASE
AIR DUCT
AIR CLEANER COVER
ELEMENT
LATCH TABS
A dirty air cleaner will restrict air flow to the carburetor, reducing
engine performance. If you operate the engine in very dusty areas,
clean the air filter more often than specified in the MAINTENANCE
SCHEDULE (see page ).
Operating the engine without an air filter, or with a damaged air
filter, will allow dirt to enter the engine, causing rapid engine wear.
This type of damage is not covered under the Warranty.
Remove the air cleaner cover and inspect the filter elements.
Clean or replace dirty filter elements. Always replace damaged
filter elements.
Press the latch tabs on the fuel tank side of the air cleaner cover,
and remove the air cleaner cover.
Remove the element. Carefully check the element for holes or
tears and replace if damaged.
Tap the element lightly several 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 element if it is excessively
dirty.
Wipe dirt from the inside of the air cleaner case and cover using
a moist rag. Be careful to prevent dirt from entering the air duct
that leads to the carburetor.
Install the element and the air cleaner cover.
Remove the nut and the air cleaner cover.
Remove the elements.
Remove the foam element from the paper element.
Inspect both elements and replace them if they are damaged.
Always replace the paper element at the scheduled interval.
Clean the elements if they are to be reused.
Paper element:
Tap the element lightly several times on a hard surface to
remove dirt, or blow compressed air through the filter from the
inside. Never try to brush the dirt off; brushing will force dirt into
the fibers. Replace the element if it is excessively dirty.
Foam element:
Clean in warm soapy water, rinse, and allow to dry thoroughly.
Or clean in nonflammable solvent and allow to dry. Dip the
element in clean engine oil, then squeeze out all excess oil. The
engine will smoke when started if too much oil is left in the foam.
Wipe dirt from the inside of the air cleaner base and cover, using
a moist rag. Be careful to prevent dirt from entering the air duct
that leads to the carburetor.
Place the foam element over the paper element, and reinstall the
assembled air filter. Be sure the gasket is in place beneath the
air filter.
Install the air cleaner cover, and tighten the nut securely.
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Recommended Spark Plug:
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Spark Arrester Removal
Spark Arrester Cleaning & Inspection
SPARK PLUG WRENCH
SIDE ELECTRODE
MUFFLER
SCREW (2)
SPARK ARRESTER
MUFFLER PROTECTOR
6mmBOLT(3)
0.7 0.8 mm
(0.028 0.031 in)
SPARK P LUG
SCREEN
BPR6ES (NGK)
The recommended spark plug has the correct heat range for
normal engine operating temperatures.
An incorrect spark plug can cause engine damage.
If the engine has been running, let it cool before servicing the
spark plug.
For good performance, the spark plug must be properly gapped
and free of deposits.
Remove the spark plug with the
spark plug wrench.
Disconnect the spark plug cap,
and remove any dirt from
around the spark plug area.
Visually inspect the spark plug.
Discard the spark plug if there is
apparent wear, or if the
insulator is cracked or chipped.
Clean the spark plug with a wire
brush if it is to be reused.
Measure the spark plug
electrode gap with a feeler
gauge. Correct as necessary by
bending the side electrode.
The gap should be:
0.7 0.8 mm (0.028 0.031 in)
Check that the spark plug
washer is in good condition and
thread the spark plug in by hand
to prevent cross-threading.
After the spark plug is seated,
tighten with the spark plug
wrench to compress the washer.
When installing a new spark plug, tighten 1/2 turn after the spark
plug seats to compress the washer.
When reinstalling the original spark plug, tighten 1/8 1/4 turn
after the spark plug seats to compress the washer.
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
Attach the spark plug cap to the spark plug.
In some areas, it is illegal to operate an engine without a spark
arrester. Check local laws and regulations. A spark arrester is
available from authorized Honda servicing dealers.
The spark arrester must be serviced every 100 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be hot. Allow it to
cool before servicing the spark arrester.
Remove the muffler protector by removing the three 6 mm bolts.
Remove the spark arrester from the muffler by removing the
two screws. (Taking care not to damage the wire mesh.)
Check for carbon deposits around the exhaust port and spark
arrester, and clean if necessary.
Use a brush to remove carbon deposits from the spark arrester
screen. Be careful not to damage the screen. Replace the spark
arrester if it has breaks or holes.
Install the spark arrester and the muffler in the reverse order of
disassembly.
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