Honda GS190 Owner'S Manual Download Page 6

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AIR CLEANER

A dirty air cleaner will restrict air flow to the carburetor and cause poor
engine performance. Inspect the filter each time the engine is
operated. You will need to clean the filter more frequently if you
operate the engine in very dusty areas.

NOTICE

Operating the engine without an air filter, or with a damaged filter, 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. Press the latch tabs on the top of the air cleaner cover, and remove

the cover.

2. Remove the foam element from the air cleaner cover.

3. Remove the screen grid from the paper element.

4. Check both elements to be sure they are clean and in good

condition.

5. Reinstall the screen grid over the paper element. Make sure that

the screen grid completely surrounds the paper pleats.

6. Reinstall the foam element in the air cleaner cover.

7. Set the paper element and screen grid in the air cleaner body then

install the air cleaner cover.

Cleaning

1. Paper Element: Tap the paper element several times on a hard

surface to remove dirt, or blow compressed air [not exceeding 30
psi (207 kPa, 2.1 kg/cm²)] through the filter from the clean side that
faces the engine. Never try to brush off dirt. Brushing will force dirt
into the fibers.

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, or the oil could saturate the paper element making the
engine inoperable.

3. Wipe dirt from the air cleaner body and cover using a moist rag. Be

careful to prevent dirt from entering the air duct that leads to the
carburetor.

SPARK PLUG

Recommended Spark Plug:

NGK BPR6ES

The recommended spark plug is 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.

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.

AIR
DUCT