HONDA GXV160 - Manual (Page 6)

6
AIR CLEANER
A dirty air cleaner will restrict air flow to the carburetor and cause poor
engine performance. Inspect the elements each time the engine is
operated. You will need to clean the elements more frequently if you
operate the engine in very dusty areas.
NOTICE
Operating the engine without an air cleaner or with a damaged air
cleaner, will allow dirt to enter the engine, causing rapid engine wear.
This type of damage is not covered under the Distributor’s Limited
Warranty (see page 11).
Inspection
1. Remove the two wing bolts,
then remove the air cleaner
cover. Be careful to prevent
dirt and debris from falling
into the air cleaner base.
2. Remove the paper element
and the foam element from
the air cleaner base.
3. Remove the foam element
from the paper element.
4. Inspect the filter elements.
Replace damaged
elements. Clean or replace
dirty elements.
Cleaning
1. Remove the air cleaner
cover and foam element,
as described in the
INSPECTION procedure
above.
2. Remove the paper element from the air cleaner base.
3. Paper element: Tap the element several times on a hard surface to
remove excess dirt, or blow compressed air [not exceeding 30 psi
(207 kPa)] through the element from the wire screen side. Never try
to brush off dirt; brushing will force dirt into the fibers. Replace the
paper element if it is excessively dirty.
4. Foam element: Clean in warm, soapy water or nonflammable
solvent, rinse and dry thoroughly. Do not use gasoline as a cleaning
solvent, because that would create a risk of fire or explosion. Dip
the element in clean engine oil, then squeeze out all excess oil.
Excess oil will restrict air flow through the foam element and may
transfer to the paper element, soaking and clogging it.
5. Wipe dirt from 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.
6. Reinstall the air cleaner elements, and make sure both elements
are properly positioned. Install the air cleaner cover and tighten the
two wing bolts securely.
SPARK PLUG
Recommended spark plugs: BPR5ES (NGK)
W16EPR-U (DENSO)
The recommended spark plugs are the correct heat range for normal
engine operating temperatures.
NOTICE
Incorrect spark plugs can cause engine damage.
For good performance, the
spark plug must be properly
gapped and free of deposits.
1. Disconnect the cap from
the spark plug, and
remove any dirt from the
spark plug area.
2. Use the proper size spark
plug wrench to remove the
spark plug.
3. Inspect the spark plug. Replace it if
damaged, badly fouled, if the
sealing washer is in poor condition,
or if the electrode is worn. If the
spark plug is to be reused, clean it
with a wire brush.
4. Measure the electrode gap with a
suitable gauge. The correct gap is
0.028 - 0.031 in (0.70 - 0.80 mm). If
adjustment is needed, correct the
gap by carefully bending the side
electrode.
5. Install the spark plug carefully, by
hand, to avoid cross-threading.
6. After the spark plug is seated, tighten with the proper size spark
plug wrench to compress the washer.
7. When installing a new spark plug, tighten 1/2 turn after the spark
plug seats to compress the washer.
8. When reinstalling the original spark plug, tighten 1/8 - 1/4 turn after
the spark plug seats to compress the washer.
NOTICE
A loose spark plug can become very hot and can damage the
engine. Overtightening the spark plug can damage the threads in
the cylinder head.
9. Attach the spark plug cap to the spark plug.
IDLE SPEED ADJUSTMENT
1. Start the engine outdoors,
and let it warm up to normal
operating temperature.
2. Move the throttle control to
the slow (IDLE) position.
3. Using a screwdriver, turn the
throttle stop screw to obtain
the standard idle speed or
the idle speed specified by
the equipment
manufacturer.
Standard Idle Speed:
N type:
1,700 ± 150 rpm
A type: 2,100 ± 150 rpm
AIR CLEANER
BASE
PAPER
ELEMENT
AIR CLEANER
COVER
WING BOLT
FOAM
ELEMENT
SPARK PLUG
WRENCH
SPARK PLUG CAP
0.028 ~ 0.031 in
(0.70 ~ 0.80 mm)
SEALING
WASHER
THROTTLE STOP SCREW