HONDA GXV390 - Manual (Page 8)

8
DRAINING THE FUEL TANK AND CARBURETOR
1. Remove the carburetor bowl
drain bolt and sealing
washer with a 10 mm
wrench, and drain the
carburetor bowl fuel into an
approved gasoline container.
2. Move the fuel valve lever to
the ON position (see
page 3). This will allow the
fuel tank to drain through the
carburetor bowl.
3. After draining the carburetor and fuel tank, install the drain bolt and
sealing washer and tighten securely.
ENGINE OIL
1. Change the engine oil (see
page 5).
2. Remove the spark plug (see
page 6) and pour a
tablespoon (5 - 10 cc) of
clean engine oil into the
cylinder. Using the recoil,
crank the engine a few
revolutions to distribute the
oil in the cylinder, then
reinstall the spark plug.
3. Pull the starter rope slowly until resistance is felt. This closes the
valves and will help to protect the engine from internal corrosion.
STORAGE PRECAUTIONS
If your engine will be stored with gasoline in the fuel tank and
carburetor, it is important to reduce the hazard of gasoline vapor
ignition. Select a well-ventilated storage area away from any appliance
that operates with a flame, such as a furnace, water heater, or clothes
dryer. Also avoid any area with a spark-producing electric motor, or
where power tools are operated. If possible, avoid storage areas with
high humidity, because that promotes rust and corrosion. If there is
gasoline in the fuel tank, leave the fuel valve in the OFF position (see
page 4). Keep the engine level during storage. Tilting can cause fuel or
oil leakage. With the engine and exhaust system cool, cover the
engine to keep out dust. A hot engine and exhaust system can ignite
or melt some materials. Do not use sheet plastic as a dust cover. A
nonporous cover will trap moisture around the engine, promoting rust
and corrosion.
REMOVAL FROM STORAGE
Check your engine as described in the BEFORE OPERATION
CHECKS section of this manual (see page 3). If the fuel was drained
during storage preparation, fill the tank with fresh gasoline. If you keep
a container of gasoline for refueling, be sure it contains only fresh
gasoline. Gasoline oxidizes and deteriorates over time, causing hard
starting. If the cylinder was coated with oil during storage preparation,
the engine will smoke briefly at startup. This is normal.
TRANSPORTING
Keep the engine level when transporting to reduce the possibility of
fuel leakage. Turn the fuel valve to the OFF position (see page 4).
TAKING CARE OF UNEXPECTED PROBLEMS
TECHNICAL & CONSUMER INFORMATION
TECHNICAL INFORMATION
Serial Number Location
Record the engine model
identifier, engine serial
number and engine type in the
space below. You will need
this information when ordering
parts and when making
technical or warranty inquiries.
 WARNING
Gasoline is highly flammable and explosive, and you can
be burned or seriously injured when handling fuel.
• Stop engine and keep heat, sparks, and flame away.
• Refuel only outdoors.
• Wipe up spills immediately.
CARBURETOR
BOWL
DRAIN
BOLT
SEALING
WASHER
SPARK PLUG
HOLE
OIL
ENGINE WILL NOT
START Possible Cause Correction
1. Check throttle lever
position.
Throttle lever in wrong
position. Move throttle lever to the
choke position unless
engine is warm (p. 2)
2. Check fuel. Out of fuel. Refuel.
Fuel valve OFF Turn fuel valve ON (p. 3)
Bad fuel; engine stored
without treating or draining
gasoline, or refueled with bad
gasoline. Drain the fuel tank and
carburetor (p. 8). Refuel
with fresh gasoline.
3. Remove and inspect
spark plug.
Spark plug faulty, fouled, or
improperly gapped. Replace the spark plug
(p. 6).
Spark plug wet with fuel
(flooded engine). Dry and reinstall spark
plug. Start engine with
choke/throttle lever in
FAST position.
4. Take engine to an
authorized Honda
servicing dealer, or
refer to shop manual.
Fuel filter clogged, carburetor
malfunction, ignition
malfunction, valves stuck,
etc. Replace or repair faulty
components as necessary.
ENGINE LACKS POWER Possible Cause Correction
1. Check air cleaner
elements.
Air cleaner elements clogged. Clean or replace cleaner
elements (p. 6).
2. Check fuel. Bad fuel; engine stored
without treating or draining
gasoline, or refueled with bad
gasoline. Drain the fuel tank and
carburetor (p. 8). Refuel
with fresh gasoline (p. 5).
3. Check throttle lever
position.
Throttle lever is wrong
position. Position the throttle lever in
fast (or high) position.
4. Take engine to an
authorized Honda
servicing dealer, or
refer to shop manual.
Fuel filter clogged, carburetor
malfunction, ignition
malfunction, compression
problem. Replace or repair faulty
components as necessary.
LPG Model
Refer to the LPG equipment manufacturer for troubleshooting
information.
MODEL IDENTIFIER SERIAL NUMBER ENGINE TYPE
___ ___ ___ ___ ___ – ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
SERIAL
NUMBER
LOCATION
MODEL IDENTIFIER
TYPE SERIAL NUMBER