Honda Power Equipment GVX340 User Manual
OWNER’S MANUAL
GXV340•GXV390
Gasoline or LPG Fueled Engines
.
WARNING:
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.
31Z1G740
00X31-Z1G-7400
CONTENTS
EM3
GXV340K2•GXV390K1
POM52355F
IPC
3,000.2004.01
PRINTED IN U.S.A.
INTRODUCTION
Thank you for purchasing a Honda engine. We want to help you to get
the best results from your new engine and to operate it safely. This
manual contains information on how to do that; please read it carefully
before operating the engine. If a problem should arise, or if you have
any questions about your engine, consult an authorized Honda
servicing dealer.
All information in this publication is based on the latest product
information available at the time of printing. American Honda Motor
Co., Inc. reserves the right to make changes at any time without notice
and without incurring any obligation. No part of this publication may be
reproduced without written permission.
This manual should be considered a permanent part of the engine and
should remain with the engine if resold.
Review the instructions provided with the equipment powered by this
engine for any additional information regarding engine startup,
shutdown, operation, adjustments or any special maintenance
instructions.
SAFETY MESSAGES
Your safety and the safety of others is very important. We have
provided important safety messages in this manual and on the engine.
Please read these messages carefully. A safety message alerts you to
potential hazards that could hurt you or others. Each safety message
is preceded by a safety alert symbol
DANGER, WARNING, or CAUTION.
These signal words mean:
DANGER
WARNING
and one of three words,
You WILL be KILLED or SERIOUSLY
HURT if you don't follow instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don't follow instructions.
INTRODUCTION . . . . . . . . . . . . . . 1
Safety Messages . . . . . . . . . . . 1
Damage Prevention
Messages . . . . . . . . . . . . . . . . . . 1
Safety Information. . . . . . . . . . . 1
COMPONENT & CONTROL
LOCATION . . . . . . . . . . . . . . . . . . 2
Throttle Cable Connection . . . . 2
LPG Connection . . . . . . . . . . . . 2
Battery Connection . . . . . . . . . . 2
BEFORE OPERATION
CHECKS . . . . . . . . . . . . . . . . . . . . 3
Is Your Engine
Ready To Go . . . . . . . . . . . . . . . 3
OPERATION . . . . . . . . . . . . . . . . . 3
Safe Operating Precautions . . . 3
Starting the Engine . . . . . . . . . 3
Setting Engine Speed . . . . . . . . 3
Stopping the Engine . . . . . . . . . 4
SERVICING YOUR ENGINE . . . . . 4
The Importance of
Maintenance. . . . . . . . . . . . . . . . 4
Maintenance Safety . . . . . . . . . 4
Safety Precautions . . . . . . . . . . 4
Maintenance Schedule . . . . . . . 4
Refueling . . . . . . . . . . . . . . . . . . 5
Fuel Recommendations . . . . . . 5
Engine Oil . . . . . . . . . . . . . . . . . 5
Air Cleaner . . . . . . . . . . . . . . . . 6
Spark Plug . . . . . . . . . . . . . . . . . 6
Spark Arrester . . . . . . . . . . . . . 7
© 2000 - 2004 American Honda Motor Co., Inc.—All Rights Reserved
HELPFUL TIPS &
SUGGESTIONS. . . . . . . . . . . . . . . 7
Storing Your Engine . . . . . . . . . 7
Adding A Gasoline
Stabilizer To Extend Fuel
Storage Life . . . . . . . . . . . . . . . . 7
Draing The Fuel Tank And
Carburetor . . . . . . . . . . . . . . . . . 8
Transporting . . . . . . . . . . . . . . . 8
TAKING CARE OF UNEXPECTED
PROBLEMS. . . . . . . . . . . . . . . . . . 8
TECHNICAL & CONSUMER
INFORMATION . . . . . . . . . . . . . . . 8
Technical Information . . . . . . . 8
Serial Number Location . . . . . . 8
High Altitude Operation . . . . . . 9
Oxygenated Fuels . . . . . . . . . . . 9
Emission Control System
Information. . . . . . . . . . . . . . . . . 9
Air Index . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . 10
Tuneup Specifications . . . . . . 10
Consumer Information . . . . . . 10
Honda Publications. . . . . . . . . 10
Wiring Diagram . . . . . . . . . . . . 10
Distributor’s Limited
Warranty. . . . . . . . . . . . . . . . . . 11
Emission Control System
Warranty. . . . . . . . . . . . . . . . . . 11
Distributor/Dealer Locator
Information. . . . . . . . . . . . . . . . 12
Customer Service
Information. . . . . . . . . . . . . . . . 12
CAUTION
instructions.
Each message tells you what the hazard is, what can happen, and
what you can do to avoid or reduce injury.
DAMAGE PREVENTION MESSAGES
You CAN be HURT if you don't follow
You will also see other important messages that are preceded by the
word NOTICE. This word means:
NOTICE
Your engine or other property can be
damaged if you don’t follow instructions.
The purpose of these messages is to help prevent damage to your
engine, other property, or the environment.
SAFETY INFORMATION
• Understand the operation of all controls and learn how to stop the
engine quickly in case of emergency. Make sure the operator
receives adequate instruction before operating the equipment.
• Your engine’s exhaust contains poisonous carbon monoxide. Do not
run the engine without adequate ventilation, and never run the
engine indoors.
• The engine and exhaust become very hot during operation. Keep
the engine at least 3 feet (1 meter) away from buildings and other
equipment during operation. Keep flammable materials away, and
do not place anything on the engine while it is running.
Text surrounded by a box is additional information specifically for
LPG model engines ONLY. Disregard this information if your engine
is operating on gasoline.
1
COMPONENT & CONTROL LOCATION
COOLING AIR FILTER
(LPG MODELS)
AIR FILTER
SPARK PLUG CAP
FUEL TANK CAP
OIL FILTER
THROTTLE
CONTROL
OIL FILLER CAP/
DIPSTICK
RECOIL
STARTER
GRIP
STARTER
SOLENOID
MUFFLER
THROTTLE CABLE CONNECTION
CHOKE
THROTTLE
CABLE
5 mm
SCREW
CABLE
HOLDER
THROTTLE
LEVER
THROTTLE
LEVER
CHOKE
FAST
CHOKE
ADJUSTING
SCREW
The throttle lever is provided with
holes for attaching a solid wire
throttle cable.
CHOKE
ARM
PULL
1. Remove the 5 mm screw and
the cable holder. Hook the solid
wire cable end into the throttle
lever as shown.
2. Move the throttle cable control
(located on equipment) into the
FAST (or HIGH) throttle
position.
3. Move the throttle lever by pulling
the throttle cable until the
throttle lever just contacts the
choke arm. Install the cable
holder securing the throttle
cable and tighten it securely.
4. Move the throttle control
(located on equipment) to move
CHOKE
ROD
the throttle lever to the CHOKE
position. Verify the engine
choke rod moves the carburetor
choke fully closed. Adjust the
adjusting screw until it just
contacts the choke arm.
5. Start the engine and move the
throttle lever to the FAST (or
HIGH) position. Using a
tachometer, check the engine
speed. Loosen the cable holder
bolt and move the throttle cable
to obtain the top no load engine
speed specified by the
equipment manufacturer.
Tighten the cable holder bolt
securely.
6. Move the throttle cable control lever to the STOP position and
confirm that the engine stops.
LPG CONNECTIONS
This engine is certified to comply with U.S. EPA and California ARB
emission regulations using the Impco Beam regulator specified in the
installation instructions (see below). Honda used this regulator and
other specific parts and adjustments to demonstrate compliance with
the emission regulations. Adjustable fuel system parts must have
U.S. EPA and California ARB approved tamper resistant features to
limit the available adjustment after the fuel system is correctly
installed. If an equipment manufacturer did not install your engine in a
product you will need the installation instructions for the Honda
certified system (see below). If you choose not to use the Honda fuel
system you must use a system that has been certified by the fuel
system manufacturer to be used on this Honda engine. Or if you use
a fuel system that is not already certified you must have certification
test data satisfactory to the U.S. EPA or the California ARB. The test
data must prove that the system will meet the emission standard both
when the engine is new and at the end of its emission durability
period (250 hours).
To obtain a copy of the installation instructions for this engine, contact
an independent Honda engine distributor, or our Customer Service
Department (page 12).
BATTERY CONNECTIONS
Use a 12 volt battery with an ampere-hour rating of at least 18 AH.
Coat the terminals and cable ends with grease. Be careful not to
connect the battery in reverse polarity, as this will short circuit the
battery charging system.
WARNING
A battery can explode if you do not follow the correct
procedure, seriously injuring anyone nearby.
Keep all sparks, open flames, and smoking materials away
from the battery.
1. Connect the battery positive (+) cable to the starter solenoid
terminal as shown.
2. Connect the battery negative (-) cable to an engine mounting bolt,
frame bolt, or other good engine ground connection.
3. Connect the battery positive (+) cable to the battery positive (+)
terminal as shown.
4. Connect the battery negative (-) cable to the battery negative (-)
terminal as shown.
BATTERY NEGATIVE (-)
TERMINAL
BATTERY
NEGATIVE (-)
CABLE
BATTERY
STARTER
SOLENOID
BATTERY POSITIVE (+)
BATTERY POSITIVE
(+) TERMINAL
CABLE
2
BEFORE OPERATION CHECKS
IS YOUR ENGINE READY TO GO?
For your safety, and to maximize the service life of your equipment, it
is very important to take a few moments before you operate the engine
to check its condition. Be sure to take care of any problem you find, or
have your servicing dealer correct it, before you operate the engine.
WARNING
Improperly maintaining this engine, or failure to correct a
problem before operation, can cause a malfunction in
which you can be seriously hurt or killed. Always perform a
preoperation inspection before each operation, and correct
any problem.
Before beginning your preoperation checks, be sure the engine is level
and the throttle lever is in the STOP position. Always check the
following items before you start the engine:
1. Fuel level (see page 5).
2. Oil level (see page 5).
3. Air cleaner (see page 6).
4. LPG models: cooling air filter (see page 6).
5. General inspection: Check for fluid leaks and loose or damaged
parts.
6. Check the equipment powered by this engine.
Review the instructions provided with the equipment powered by
this engine for any precautions and procedures that should be
followed before engine startup.
LPG EQUIPMENT
Carefully follow the installation and operating instructions of the LPG
equipment manufacturer.
OPERATION
SAFE OPERATING PRECAUTIONS
Before operating the engine for the first time, please review the
SAFETY INFORMATION section on page 1 and the BEFORE
OPERATION CHECKS section above.
WARNING
Carbon monoxide gas is toxic. Breathing it can cause
unconsciousness and even kill you. Avoid any areas or
actions that expose you to carbon monoxide.
Review the instructions provided with the equipment powered by this
engine for any safety precautions that should be observed with engine
startup, shutdown, or operation.
STARTING THE ENGINE
1. Turn the fuel valve to the ON
position.
LPG Models:
Turn the fuel valve on at the
source.
2. STARTING A COLD
ENGINE:
Move the throttle control to
the CHOKE position.
STARTING A WARM
ENGINE:
Do not use the CHOKE
position when the engine is
warm. Move the throttle
control slightly past the
SLOW position.
LPG Models:
Always use the CHOKE position when starting the engine.
3. Recoil Start Models
Pull the starter grip lightly until resistance is felt, then pull briskly.
NOTICE
Do not allow the starter grip to snap back against the engine.
Return it gently to prevent damage to the starter.
4. Electric Start Models
Turn the engine switch to the START position, and hold it there until
the engine starts. When the engine starts, allow the engine switch
to return to the ON position.
NOTICE
Do not use the starter for more than 5 seconds or starter motor
damage may occur. If the engine fails to start, release the switch
and wait 10 seconds before operating the starter again.
5. If the choke was used to start the engine, move the throttle to the
FAST (or HIGH) position as soon as the engine warms up enough
to run smoothly without use of the choke.
SETTING ENGINE SPEED
Position the throttle control for the desired
engine speed. For best engine performance, it
is recommended the engine be operated with
the throttle in the FAST (or high) position.
OIL ALERT® BUZZER
FUEL VALVE LEVER
ON
CHOKE
FAST
SLOW
FAST
SLOW
OFF
(oil alert type only)
The OIL ALERT buzzer will warn you before the engine oil level falls
below the safe operating limit. If the buzzer sounds, stop the engine
immediately and add oil (see page 5).
NOTICE
The buzzer indicates insufficient oil. Running the engine with
insufficient oil can cause serious engine damage.
3
STOPPING THE ENGINE
1. Recoil Start Models
Move the throttle control to the
SLOW position.
2. Move the throttle control to the
stop position.
Electric Start Models
SLOW
OFF
Move the throttle control to the
slow position, then turn the
engine switch to the OFF or
STOP position.
3. Turn the fuel valve lever to the
FUEL VALVE LEVER
OFF position if you do not
intend to restart the engine
soon.
LPG Models:
Turn the fuel valve OFF at
the source.
OFF
SERVICING YOUR ENGINE
THE IMPORTANCE OF MAINTENANCE
Good maintenance is essential for safe, economical and trouble-free
operation. It will also help reduce pollution.
WARNING
Improper maintenance, or failure to correct a problem
before operation, can cause a malfunction in which you
can be seriously hurt or killed. Always follow the inspection
and maintenance recommendations and schedules in this
owner’s manual.
To help you properly care for your engine, the following pages include
a maintenance schedule, routine inspection procedures, and simple
maintenance procedures using basic hand tools. Other service tasks
that are more difficult, or require special tools, are best handled by
professionals and are normally performed by a Honda technician or
other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If
you operate your engine under severe conditions, such as sustained
high-load or high-temperature operation, or use in unusually wet or
dusty conditions, consult your servicing dealer for recommendations
applicable to your individual needs and use.
Maintenance, replacement, or repair of the emission control
devices and systems may be performed by any engine repair
establishment or individual, using parts that are “certified” to
EPA standards.
MAINTENANCE SAFETY
Some of the most important safety precautions follow. However, we
cannot warn you of every conceivable hazard that can arise in
performing maintenance. Only you can decide whether or not you
should perform a given task.
SAFETY PRECAUTIONS
• Make sure the engine is off before you begin any maintenance or
repairs. This will eliminate several potential hazards:
– Carbon monoxide poisoning from engine exhaust.
Be sure there is adequate ventilation whenever you operate
the engine.
– Burns from hot parts.
Let the engine and exhaust system cool before touching.
– Injury from moving parts.
Do not run the engine unless instructed to do so.
• Read the instructions before you begin, and make sure you have
the tools and skills required.
• To reduce the possibility of fire or explosion, be careful when
working around gasoline. Use only a nonflammable solvent, not
gasoline, to clean parts. Keep cigarettes, sparks and flames away
from all fuel related parts.
Remember that an authorized Honda servicing dealer knows your
engine best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new genuine Honda
parts or their equivalents for repair and replacement.
MAINTENANCE SCHEDULE
Every
Every 6
REGULAR SERVICE
ITEM
Perform at every indicated month or operating
hour interval, whichever comes first.
Engine oil Check
Engine oil
(LPG models)
Engine oil filter Replace
Air filter Check
Cooling air filter
(LPG models)
Spark plug Check-
Spark arrester (optional part) Clean
Idle speed Check-
Fuel tank and filter Clean
Fuel line Check Every 2 years
Valve clearance Check-
Fuel hose (LPG models) Check
PERIOD (3)
Replace
Check level
Change
Clean
Replace
Clean
adjust
Replace
adjust
adjust
Each
Use
O5
O5
O6
O (1) 6
O-
(1) Service more frequently when used in dusty areas.
(2) Change engine oil every 25 hours when used under heavy load or
in high ambient temperatures.
(3) These items should be serviced by an authorized Honda servicing
dealer, unless you have the proper tools and are mechanically
proficient. Refer to the Honda shop manual for service
procedures.
(4) For commercial use, log hours of operation to determine proper
maintenance intervals.
Every 3
First
Months
Month
or
or
50 Hrs
20 Hrs
OO 5
OO 5
O (1) 6
(Replace if necessary)
Year
Months
or
100 Hrs
O
O7
O(3) -
O(2) -
O(2) -
Page
or
300
Hrs
O6
O6
O
6
WARNING
Failure to properly follow maintenance instructions and
precautions can cause you to be seriously hurt or killed.
Always follow the procedures and precautions in this
owner’s manual.
4
REFUELING
Use unleaded gasoline with a pump octane rating of 86 or higher. This
engine is certified to operate on unleaded gasoline. Unleaded gasoline
produces fewer engine and spark plug deposits and extends exhaust
system life.
WARNING
Gasoline is highly flammable and explosive, and you can
be burned or seriously injured when refueling.
• Stop engine and keep heat, sparks, and flame away.
• Refuel only outdoors.
• Wipe up spills immediately.
NOTICE
Fuel can damage paint and some types of plastic. Be careful not to
spill fuel when filling your fuel tank. Damage caused by spilled fuel is
not covered under the Distributor’s Limited Warranty (see page 11).
Never use stale or contaminated
gasoline or oil/gasoline mixture.
Avoid getting dirt or water in the
fuel tank.
Adding Fuel
1. Remove the fuel tank cap.
2. Add fuel to the bottom of the
fuel level limit in the neck of
the fuel tank. Do not overfill.
Wipe up spilled fuel before
starting the engine.
Fuel tank capacity: 0.61 US gal (2.3 )
3. Reinstall the fuel tank cap.
ENGINE OIL
Recommended Oil
Use 4-stroke motor oil that meets
or exceeds the requirements for
API service classification SH, SJ,
or equivalent. Always check the
API service label on the oil
container to be sure it includes the
letters SH, SJ, or equivalent.
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.
FUEL TANK CAP
FUEL
LEVEL
LIMIT
Oil Level Check
OIL FILLER CAP/DIPSTICK
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. Do not
screw it in, then remove it to check
OIL FILLER
NECK
the oil level.
4. If the oil level is near or below the
lower limit mark on the dipstick,
OIL FILLER
CAP/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.
OIL FILLER
CAP/
DIPSTICK
UPPER
LIMIT
LOWER
LIMIT
1. Place a suitable container next to the
oil drain bolt.
2. Wipe the oil filter area clean, then
remove the oil filler cap/dipstick.
3. Remove the oil drain bolt and sealing
washer and allow the oil to drain into
a suitable container. After draining,
SEALING
WASHER
DRAIN BOLT
install the drain bolt with the sealing
washer and tighten it securely.
4. Fill with the recommended oil. Do not
overfill. Measure the oil level as shown
above.
Engine Oil Capacity: 1.16 US qt (1.1 )
with oil filter: 1.48 US qt (1.4 )
Please dispose of used motor oil and the oil containers 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 or pour it on the ground or
down a drain.
Recommended Oil
(LPG models)
Use 4-stroke motor oil that is designed for
engines operating on LPG fuel. Use one
of the recommended oils that meet
Honda’s requirements.
For operation in temperatures below 32°F
(0°C), 5W-30 synthetic oil may be used
for easier starting. Do not use 5W-30
when the air temperature is above 32°F
(0°C).
Use SAE 30, API
service classification
SG minimum
Pennzoil HD 30
Valvoline HPO 30
Castrol HD 30
5
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