honda-automobiles gcv190 User Manual

ENGLISH

Recommended Oil 
Use 4-stroke motor oil that meets 
or exceeds the requirements for 
API service classification SJ or 
later. Always check the API 
service label on the oil container 
to be sure it includes the letters 
SJ or later.

SAE 10W-30 is recommended for general use. Other viscosities 
shown in the chart may be used when the average temperature in 
your area is within the indicated range.

Oil Level Check 
1. Check the oil with the engine stopped and level.
2. Remove the oil filler cap/dipstick and wipe it clean.

3. Insert the oil filler cap/dipstick into the oil filler neck as shown, but 

do not screw it in, then remove it to check the oil level.

4. If the oil level is near or below the lower limit mark on the dipstick, 

remove the oil filler cap/dipstick, and fill with the recommended oil 
to the upper limit mark. Do not overfill.

5. Reinstall the oil filler cap/dipstick.

Oil Change 
Drain the engine oil when the engine is warm. Warm oil drains quickly 
and completely.

1. Turn the fuel valve to the OFF position to reduce the possibility of 

fuel leakage (see TYPE 1 Step 1 on page 2).

2. Place a suitable container next to the engine to catch the used oil.

3. Remove the oil filler cap/dipstick and drain the oil into the container 

by tipping the engine toward the oil filler neck.

Please dispose of used motor oil in a manner that is compatible 
with the environment. We suggest you take used oil in a sealed 
container to your local recycling center or service station for 
reclamation. Do not throw it in the trash, pour it on the ground, or 
pour it down a drain.

4. With the engine in a level position, fill to the upper limit mark on the 

dipstick with the recommended oil (see page 7).

5. Reinstall the oil filler cap/dipstick securely.

A dirty air filter 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.

Operating the engine without a 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 your DISTRIBUTOR’S LIMITED 
WARRANTY (see page 13).

Inspection 
1. Press the latch 

tabs on the top of 
the air cleaner 
cover and remove 
the cover. Check 
the filter to be sure 
it is clean and in 
good condition.

2. Reinstall the filter 

and air cleaner 
cover.

Cleaning 
1. Tap the filter 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. 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.

The recommended spark plug is the correct heat range for normal 
engine operating temperatures.

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 a 13/16" 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 
0.70 ~ 0.80 mm (0.028 ~ 0.031 in). 
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 a spark plug wrench to 
compress the washer.

POM52684-L.book  Page 7  Monday, February 5, 2007  3:00 PM