Engine Honda GSV160, GSV190 French Version Manual

							1E
INTRODUCTION
Thank you for purchasing a Honda engine. We want to help you to get 
the best results from your new engi ne and to operate it safely. This 
manual contains information on how to  do that; please read it carefully 
before operating the engin e. 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 ma ke changes at any time without 
notice and without incurri ng 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 wi th the equipment powered by this 
engine for any additional inform ation regarding engine startup, 
shutdown, operation, adjustment s or any special maintenance 
instructions.
SAFETY MESSAGES
Your safety and the safety of ot hers is very important. We have 
provided important safety messag es in this manual and on the 
engine. Please read th ese messages carefully.
A safety message alerts you to pote ntial hazards that could hurt you 
or others. Each safety message is  preceded by a safety alert symbol 
 and one of three words, DANGER, WARNING, or CAUTION.
These signal words mean:
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 will also see other important me ssages that are preceded by the 
word NOTICE.
This word means:
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 co ntrols and learn how to stop the 
engine quickly in case of emerge ncy. Make sure the operator 
receives adequate instruction be fore 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 ve ry hot during operation. Keep 
the engine at least 3 feet (1 mete r) away from buildings and other 
equipment during operation. Keep  flammable materials away, and 
do not place anything on th e engine while it is running.
CONTENTS
 DANGERYou WILL be KILLED or SERIOUSLY 
HURT if you dont follow instructions.
 WARNINGYou CAN be KILLED or SERIOUSLY 
HURT if you dont follow instructions.
 CAUTIONYou CAN be HURT if you dont follow 
instructions.
NOTICEYour engine or other property can be 
damaged if you don’t follow instructions.
INTRODUCTION  . . . . . . . . . . . . .  1
SAFETY MESSAGES  . . . . . . . . .  1
Damage Prevention
Messages  . . . . . . . . . . . . . . . . .  1
Safety Information  . . . . . . . . . .  1
COMPONENT & CONTROL
LOCATION . . . . . . . . . . . . . . . . . .  2
BEFORE OPERATION
CHECKS . . . . . . . . . . . . . . . . . . . .  2 Is Your Engine Ready to Go  . .  2
OPERATION  . . . . . . . . . . . . . . . .  2
Safe Operating Precautions  . .  2
Type 1 Operation  . . . . . . . . . . .  2
Type 2 Operation  . . . . . . . . . . .  3
Type 3 Operation  . . . . . . . . . . .  3
Type 4 Operation  . . . . . . . . . . .  4
Type 5 Operation  . . . . . . . . . . .  4
Type 6 Operation  . . . . . . . . . . .  4
SERVICING YOUR ENGINE  . . . .  5 The Importance of 
Maintenance . . . . . . . . . . . . . . .  5
Maintenance Safety  . . . . . . . . .  5
Safety Precautions   . . . . . . . . .  5
Maintenance Schedule  . . . . . .  5
Refueling   . . . . . . . . . . . . . . . . .  5
Fuel Recommendations . . . . . .  5
Engine Oil   . . . . . . . . . . . . . . . .  6
Air Cleaner  . . . . . . . . . . . . . . . .  6
Spark Plug  . . . . . . . . . . . . . . . .  6
Flywheel Brake Inspection  . . .  7
Spark Arrester  . . . . . . . . . . . . .  7 HELPFUL TIPS & 
SUGGESTIONS . . . . . . . . . . . . . .  7
Storing Your Engine  . . . . . . . .  7
Adding a Gasoline
Stabilizer to Extend Fuel 
Storage Life  . . . . . . . . . . . . . . .  8
Draining the Fuel Tank and 
Carburetor. . . . . . . . . . . . . . . . .  8
Transporting   . . . . . . . . . . . . . .  8
TAKING CARE OF UNEXPECTED 
PROBLEMS . . . . . . . . . . . . . . . . .  8
TECHNICAL & CONSUMER 
INFORMATION. . . . . . . . . . . . . . .  9 Engine Serial Number
and Type Location . . . . . . . . . .  9
High Altitude
Operation  . . . . . . . . . . . . . . . . .  9
Oxygenated Fuels  . . . . . . . . . .  9
Specifications . . . . . . . . . . . . . .  9
Wiring Diagram. . . . . . . . . . . .  10
CONSUMER INFORMATION Honda Publications . . . . . . . .  10
Warranty 
Information . . . . . . . . . Last page
OWNER’S MANUAL
MANUEL DE L’UTILISATUER
MANUAL DEL USARIO
GSV160 • GSV190
IPC         POM53691 13000.2004.03
PRINTED IN U.S.A.37Z2DA00
00X37-Z2D-A000
© 2004 American Honda Motor Co ., Inc. – All Rights Reserved
ENGLISH
FRANÇAIS
ESPAÑOL 
						

							2E
COMPONENT & CONTROL LOCATION
The engine control area differs based on the engine type. Refer to the 
individual diagrams below to determine your engine control type when 
reading the Operation section and other sections in the manual.
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.
Before beginning your preoperation checks, be sure the engine is 
level and the flywheel brake lever (type 2: throttle lever, type 4: engine 
stop switch) is in the STOP or OFF position.
Always check the following items before you start the engine:
1. Fuel level (see page 5).
2. Oil level (see page 6).
3. Air cleaner (see page 6).
4. General inspection: Check for fluid leaks and loose or damaged 
parts.
5. 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.
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 above. 
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.
TYPE 1 (FLYWHEEL BRAKE/REMOTE THROTTLE)
Starting A Cold Engine
1. Turn the fuel valve to the ON 
position.
STARTER GRIP
SPARK 
PLUG
OIL FILLER CAP/
DIPSTICKMUFFLERFUEL FILLER CAP
AIR CLEANER
ENGINE CONTROL 
AREA
TYPE 3: FLYWHEEL BRAKE/REMOTE
CHOKE/FIXED THROTTLE THROTTLE 
LEVER CHOKE LEVER
CHOKE 
ROD
ENGINE 
STOP 
SWITCH
FLYWHEEL 
BRAKE 
CONTROL 
CABLE
CHOKE 
CONTROL 
CABLE
FUEL VALVE 
LEVER
FUEL VALVE 
LEVER
FUEL VALVE LEVER
TYPE 4: AUTOMATIC CHOKE RETURN/
FIXED THROTTLE
CHOKE 
LEVER
FUEL VALVE 
LEVER
FLYWHEEL 
BRAKE 
CONTROL 
CABLE
TYPE 5: MANUAL CHOKE/FIXED 
THROTTLEFUEL TANK
ENGINE CONTROL TYPES
TYPE 1: FLYWHEEL BRAKE/
REMOTE THROTTLE
FLYWHEEL BRAKE 
CONTROL LEVER THROTTLE 
LEVER
TYPE 2: MANUAL CHOKE/
MANUAL THROTTLE
TYPE 6: REMOTE THROTTLE/BLADE 
BRAKE CLUTCH 
(equipment control)
THROTTLE 
LEVER
FUEL VALVE 
LEVER
 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.
 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.
ON
FUEL 
VALVE
OFF 
						

							3E
2. See equipment manual and 
position the throttle control 
so the choke/throttle lever 
moves to the CHOKE 
position.
3. See equipment manual 
and position the flywheel 
brake control so the 
flywheel brake lever is in 
the RUN position.
4. 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.
5. If the choke was used to start the 
engine, move the choke/throttle 
lever to the FAST (or high) position 
as soon as the engine warms up 
enough to run smoothly without 
use of the choke.
Throttle Setting
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.
Starting A Warm Engine
1. Place the choke/throttle lever in the FAST position.
2. Move the flywheel brake lever to the RUN position.
3. Pull the starter grip lightly until resistance is felt, then pull briskly.
Stopping The Engine
1. Move the choke/throttle control to 
the SLOW position.
2. Release the flywheel 
brake lever to stop the 
engine.
3. Turn the fuel valve to 
the OFF position (see 
page 2).
TYPE 2 (MANUAL CHOKE/MANUAL THROTTLE) 
Starting A Cold Engine
1. Turn the fuel valve to the ON position (see page 2).
2. Move the choke lever to the ON position.
3. Move the throttle lever to the FAST position.
4. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
5. If the choke was used to start the engine, move the choke lever to 
the OFF position as soon as the engine warms up enough to run 
smoothly without use of the choke.
6. Position the throttle lever 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.
Starting A Warm Engine
1. Move the throttle lever to the FAST position.
2. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
Stopping The Engine
1. Move the throttle lever to the SLOW position.
2. Move the throttle lever to the STOP position.
3. Turn the fuel valve to the OFF position (see page 2).
TYPE 3 (FLYWHEEL BRAKE/REMOTE CHOKE/FIXED 
THROTTLE)
Starting A Cold Engine
1. Turn the fuel valve to the 
ON position 
(see page 2).
2. Move the choke control 
cable (see equipment 
manual) so that the 
choke arm moves to the 
choke ON position.
3. Move the flywheel brake lever 
to the RUN position.
4. Pull the starter grip lightly until 
resistance is felt, then pull 
briskly (see page 3).
5. If the choke was used to start 
the engine, move the choke 
control cable so that the choke 
arm moves to the OFF position 
as soon as the engine warms 
up enough to run smoothly 
without use of the choke.
6. The engine speed is preset on this type.
SLOW
CHOKE
CHOKE/
THROTTLE 
LEVER
FAST
FLYWHEEL 
BRAKE  LEVER
STARTER 
GRIP
CHOKEFAST
CHOKE/
THROTTLE 
LEVER
SLOW
THROTTLE 
LEVER
FAST
FLYWHEEL 
BRAKE  LEVER
STOPSLOW
FAST
ONCHOKE LEVER
THROTTLE 
LEVER
OFF
FUEL 
VALVE
CHOKE 
ARM
CHOKE CONTROL 
CABLE
ON
OFF
FUEL VALVE
FLYWHEEL BRAKE  LEVER
RUN
STOP 
						

							4E
Starting A Warm Engine
1. Move the flywheel brake lever to the RUN position.
2. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
Stopping The Engine
1. Release the flywheel brake lever to stop the engine.
2. Turn the fuel valve to the OFF position (see page 2).
TYPE 4 (AUTOMATIC CHOKE RETURN/FIXED THROTTLE)
Starting A Cold Engine
1. Turn the fuel valve to the ON 
position (see page 2).
2. Move the choke lever to the 
choke position ().
3. Move the flywheel brake 
lever to the RUN position.
4. Pull the starter grip lightly 
until resistance is felt, then 
pull briskly (see page 3).
Begin pulling the recoil starter as soon as you move the flywheel 
brake lever to the RUN position. The choke lever automatically 
begins moving to the OFF position when the flywheel brake lever is 
moved to the RUN position.
5. If the engine does not start within several consecutive pulls of the 
recoil starter, release the flywheel brake lever and move the choke 
lever to the ON position.
6. Move the flywheel brake lever to the RUN position and 
immediately begin operating the recoil starter.
7. The throttle is preset on this type.
Starting A Warm Engine
1. Move the flywheel brake lever to the brake OFF position.
2. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
Stopping The Engine
1. Release the flywheel brake lever to activate the flywheel brake and 
stop the engine.
2. Turn the fuel valve to the OFF position (see page 2).
TYPE 5 (MANUAL CHOKE/FIXED THROTTLE)
Starting A Cold Engine
1. Turn the fuel valve to the ON 
position (see page 2).
2. Pull the choke rod to the ON 
position.
3. Turn the engine stop switch 
to the ON position.
4. Pull the starter grip lightly 
until resistance is felt, then 
pull briskly (see page 3).
5. If the choke was used to start the engine, move the choke rod to 
the OFF position as soon as the engine warms up enough to run 
smoothly without use of the choke.
6. The engine speed is preset on this type.Starting A Warm Engine
1. Turn the engine stop switch to the ON position.
2. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
Stopping The Engine
1. Move the engine switch to the OFF position.
2. Turn the fuel valve to the OFF position (see page 2).
TYPE 6 (REMOTE THROTTLE/BLADE BRAKE CLUTCH)
Starting A Cold Engine
1. Turn the fuel valve to the ON position (see page 2).
2. Move the choke/
throttle/stop lever to 
the CHOKE position.
Make sure the blade 
brake clutch control 
lever is disengaged 
(see equipment 
manual).
3. Pull the starter grip 
lightly until 
resistance is felt, 
then pull briskly (see 
page 3).
4. As soon as the 
engine starts, slowly 
move the choke/
throttle/stop lever to 
the FAST position.
5. Allow the engine to warm to operating temperature, then engage 
the blade brake clutch control lever (see equipment manual).
Starting A Warm Engine
1. Place the choke/throttle/stop lever in the FAST position.
Make sure the blade brake clutch control lever is disengaged (see 
equipment manual).
2. Pull the starter grip lightly until resistance is felt, then pull briskly 
(see page 3).
Throttle Setting
Position the choke/throttle/stop lever for the desired engine speed. 
For best engine performance, it is recommended the engine be 
operated with the choke/throttle/stop lever in the FAST (or high) 
position.
Stopping The Engine
1. Disengage the blade brake clutch control lever (see equipment 
manual).
2. Move the choke/throttle/stop lever to the SLOW position and allow 
the engine to idle for a few seconds.
3. Move the choke/throttle/stop lever to the STOP position.
4. Turn the fuel valve OFF (see page 2).
CHOKE 
LEVER
OFF
ON
RUNFLYWHEEL 
BRAKE  LEVERSTOP
ENGINE STOP SWITCH
CHOKE 
ROD
ON 
ON
 
OFF
FUEL 
VALVE
SLOW
CHOKE
CHOKE/
THROTTLE/
STOP 
LEVER
FAST
STOP
FUEL VALVE 
						

							5E
SERVICING YOUR ENGINE 
THE IMPORTANCE OF MAINTENANCE 
Good maintenance is essential for safe, economical and trouble-free 
operation. It will also help reduce pollution.
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 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 
(1) For commercial use, log hours of operation to determine proper 
maintenance intervals.
(2) Service more frequently when used in dusty areas.
(3) Change engine oil every 25 hours when used under heavy load 
or in high ambient temperatures.
(4) 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.
*See your equipment manual or Honda engine shop manual.
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.
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 your engine warranty (see last page).
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.
 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.
 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.
Item (1)ActionEach 
Use 
or 5 
Hrs.First
Month
or
5 Hrs.Every Season
Every
100 
Hrs.Every
150 
Hrs.Page or
25 Hrs.or
50 Hrs.
Engine oilCheckO6
ChangeOO (3) 6
Air cleanerCheckOO
6 CleanO (2)
ReplaceO
(200 Hrs.)
Spark plugCheck-AdjustO
6
ReplaceO(200 Hrs.)Blade brake 
clutchCheck
O*
Flywheel 
brake padCheckO7
Spark 
arresterCleanO7
Idle
speedAdjustO (4)Shop 
manual
Fuel tank 
and filterCheckO (4)Shop 
manual
Fuel line CheckEvery 2 years (2)Shop 
manual
Va l v e  
clearanceCheck-AdjustO (4)Shop 
manual
Combustion 
chamberCleanAfter every 250 hours (4)Shop 
manual
 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.
MAXIMUM FUEL LEVEL 
						

							6E
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.
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 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 or pour it on the ground or 
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 above). Do not overfill.
NOTICE
Running the engine with a low oil level can cause engine damage.
5. Reinstall the oil filler cap/dipstick securely.
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 a filter, or with damaged filter, will allow 
dirt to enter the engine, causing rapid engine wear. This type of 
damage is not covered under your engine warranty (see last page).
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 grid 
from the paper 
element.
4. Check both 
elements to be sure they are clean and in good condition.
5. Reinstall the grid over the paper element. Make sure that the 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. 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. 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. 
OIL FILLER CAP/DIPSTICK
UPPER LIMIT
LOWER LIMIT
OIL FILLER NECK
OIL FILLER CAP/
DIPSTICK
UPPER LIMIT
AIR DUCTPAPER 
ELEMENT
SCREEN 
GRIDFOAM 
ELEMENT
LATCH TABS
AIR 
CLEANER 
BODY
AIR CLEANER 
COVER 
						

							7E
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
Properly tighten the spark plug. 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.
FLYWHEEL BRAKE INSPECTION
1. Remove the three flange 
nuts from the recoil 
starter, and remove the 
recoil starter from the 
engine.
2. Remove the fuel tank from 
the engine without 
disconnecting the fuel 
tube. If the fuel tank 
contains fuel, keep it level 
as you remove it and set it 
beside the engine in a 
level position.
3. Check the brake shoe 
thickness. If it is less than 
0.12 in (3 mm), take the 
engine to your authorized 
Honda servicing dealer.
4. Install the fuel tank and 
recoil starter, and tighten 
the three nuts securely.
SPARK ARRESTER (optional equipment)
In some areas, it is illegal to operate an engine without a USDA 
(United States Department of Agriculture)-qualified spark arrester. 
Check local laws and regulations. A USDA-qualified spark arrester is 
available from an authorized Honda servicing dealer.
The spark arrester must be serviced every 100 hours to keep it 
functioning as designed.
If the engine has been running, the muffler will be hot. Allow it to cool 
before servicing the spark arrester.
Spark Arrester Removal
1. Remove the three 6 mm 
bolts from the muffler 
protector, and remove 
the muffler protector.
2. Remove the two special 
screws from the spark 
arrester, and remove 
the spark arrester from 
the muffler.
Spark Arrester Cleaning & Inspection
1. Use a brush to remove carbon deposits 
from the spark arrester screen. Be careful 
not to damage the screen. Replace the 
spark arrester if it has breaks or holes.
2. Install the spark arrester in the reverse 
order of removal.
HELPFUL TIPS & SUGGESTIONS
STORING YOUR ENGINE
Storage Preparation
Proper storage preparation is essential for keeping your engine 
trouble-free and looking good. The following steps will help to keep 
rust and corrosion from impairing your engine’s function and 
appearance, and will make the engine easier to start when you use it 
again.
Cleaning
If the engine has been running, allow it to cool for at least half an hour 
before cleaning. Clean all exterior surfaces, touch up any damaged 
paint, and coat other areas that may rust with a light film of oil.
NOTICE
Using a garden hose or pressure washing equipment can force water 
into the air cleaner or muffler opening. Water in the air cleaner will 
soak the air filter, and water that passes through the air filter or muffler 
can enter the cylinder, causing damage.
Fuel 
Gasoline will oxidize and deteriorate in storage. Deteriorated gasoline 
will cause hard starting, and it leaves gum deposits that clog the fuel 
system. If the gasoline in your engine deteriorates during storage, you 
may need to have the carburetor, and other fuel system components, 
serviced or replaced.
The length of time that gasoline can be left in your fuel tank and 
carburetor without causing functional problems will vary with such 
factors as gasoline blend, your storage temperatures, and whether 
the fuel tank is partially or completely filled. The air in a partially filled 
fuel tank promotes fuel deterioration. Very warm storage 
temperatures accelerate fuel deterioration. Fuel problems may occur 
within a few months, or even less if the gasoline was not fresh when 
you filled the fuel tank.
SPARK PLUG 
WRENCH
0.028 ~ 0.031 in
(0.70 ~ 0.80 mm)
SEALING 
WASHER
FLANGE NUTS (3)
FUEL TANK
FUEL 
TUBE RE
COIL 
STARTER
SPACER 
(3)
BRAKE SHOEBRAKE SHOE 
THICKNESS
SPARK ARRESTER
MUFFLER 
PROTECTOR
6 mm BOLT (3)SPECIAL 
SCREW (2)MUFFLER 
						

							8E
Fuel system damage or engine performance problems resulting from 
neglected storage preparation are not covered under your engine 
warranty (see last page).
You can extend fuel storage life by adding a gasoline stabilizer that is 
formulated for that purpose, or you can avoid fuel deterioration 
problems by draining the fuel tank and carburetor.
ADDING A GASOLINE STABILIZER TO EXTEND FUEL 
STORAGE LIFE
When adding a gasoline stabilizer, fill the fuel tank with fresh gasoline. 
If only partially filled, air in the tank will promote fuel deterioration 
during storage. If you keep a container of gasoline for refueling, be 
sure that it contains only fresh gasoline.
1. Add gasoline stabilizer following the manufacturer’s instructions.
2. After adding a gasoline stabilizer, run the engine outdoors for 
10 minutes to be sure that treated gasoline has replaced the 
untreated gasoline in the carburetor.
3. Stop the engine, and turn the fuel valve to the OFF position (see 
page 2).
DRAINING THE FUEL TANK AND CARBURETOR 
1. Place an approved gasoline container below the carburetor, and 
use a funnel to avoid spilling fuel.
2. Remove the drain bolt, then move the fuel valve lever to the ON 
position (see page 2).
3. After all the fuel has drained into the container, reinstall the drain 
bolt and washer. Tighten the drain bolt securely.
Engine Oil
1. Change the engine oil 
(see page 6).
2. Remove the spark plug 
(see page 6).
3. Pour a tablespoon (5 – 10 cc) of 
clean engine oil into the 
cylinder.
4. Pull the recoil starter several 
times to distribute the oil.
5. Reinstall the spark plug.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 2).
Keep the engine level in 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 2).
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 2).
TAKING CARE OF UNEXPECTED PROBLEMS 
 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.
FLOAT BOWL
DRAIN BOLT
WASHER
ENGINE WILL NOT 
STARTPossible Cause Correction
1. Check control 
positions.Fuel valve OFF. Move lever to ON.
Choke OFF. Move the choke/throttle 
lever, choke rod or choke 
lever to CHOKE ON 
position unless engine is 
warm. 
Ignition switch or engine stop 
switch OFF.Move the flywheel brake 
lever to RUN position.
(Ty p e s  2  &  6: Throttle lever 
to FAST position. Ty p e  5: 
Engine stop switch to ON) 
2. Check fuel. Out of fuel. Refuel.
Bad fuel; engine stored 
without treating or draining 
gasoline, of 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.
(Ty p e s  4  &  5: Choke OFF 
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. 
						

							9E
TECHNICAL & CONSUMER INFORMATION
TECHNICAL 
INFORMATION
Serial Number and 
Type Location
Record the engine serial 
number and type in the 
space below. You will 
need this information 
when ordering parts and 
when making technical or 
warranty inquiries. 
Engine serial number: __ __ __ __ __ – __ __ __ __ __ __ __
   Engine type: __ __ __ __
Carburetor Modifications for High Altitude Operation
At high altitude, the standard carb uretor air-fuel mixture will be too 
rich. Performance will decrease, and  fuel consumption will increase. A 
very rich mixture will also foul th e spark plug and cause hard starting. 
Operation at an altitude that differs  from that at which this engine was 
certified, for extende d periods of time, ma y increase emissions.
High altitude performance can be im proved by specific modifications 
to the carburetor. If you always op erate your trimmer at altitudes 
above 5,000 feet (1,500 meters),  have your servicing dealer perform 
this carburetor modification. This  engine, when operated at high 
altitude with the carbur etor modifications for hi gh altitude use, will 
meet each emission standard  throughout its useful life.
Even with carburetor modification , engine horsepower will decrease 
about 3.5% for each 1,000-foot (3 00-meter) increase in altitude. The 
effect of altitude on horsepower  will be greater than this if no 
carburetor modification is made.
NOTICE
When the carburetor has been modifi ed for high altitude operation, 
the air-fuel mixture will be too lean  for low altitude use. Operation at 
altitudes below 5,000 feet (1,500 me ters) with a modified carburetor 
may cause the engine to overheat  and result in serious engine 
damage. For use at low altitudes, ha ve your servicing dealer return 
the carburetor to original factory specifications.
Oxygenated Fuels
Some conventional gaso lines are being blended with alcohol or an 
ether compound. These gasolines ar e collectively referred to as 
oxygenated fuels. To meet clean  air standards, some areas of the 
United States and Canada use o xygenated fuels to help reduce 
emissions.
If you use oxygenated fuel, be sure  it is unleaded and meets the 
minimum octane rating requirements. Before using an oxygenated fuel, tr
y to confirm the fuel’s contents. 
Some states/provinces require this  information to be posted on the 
pump.
The following are the EPA approv ed percentages of oxygenates:
If you notice any undesirable oper ating symptoms, try another service 
station or switch to another brand of gasoline.
Fuel system damage or performance  problems resulting from the use 
of an oxygenated fuel containi ng more than the percentages of 
oxygenates mentioned above are  not covered under your engine 
warranty (see  last page).
Specifications – GSV160 
Specifications – GSV190
Tuneup Specifications 
ENGINE LACKS 
POWER Possible Cause Correction
1. Check air filter. Filter clog ged. Clean or replace filter
(p. 6).
2. Check fuel. Bad fuel; engine stored  without treating or draining 
gasoline, of refueled with bad 
gasoline. Drain the fuel tank and 
carburetor (p. 8). Refuel 
with fresh gasoline.
3. Take engine to an  authorized Honda 
servicing dealer, or 
refer to shop manual. Fuel filter clog
ged, carburetor 
malfunction, ignition 
malfunction, va lves stuck, 
etc. Replace or repair faulty 
components as necessary.
SERIAL 
NUMBER 
AND TYPE 
LOCATION
SERIAL NUMBER 
TYPE
ETHANOL    —(ethyl or grain alcohol) 10% by volume
You may use gasoline contai
ning up to 10% ethanol 
by volume. Gasoline cont aining ethanol may be 
marketed under the name Gasohol.
MTBE           —(methyl tertiary butyl ether) 15% by volume
You may use gasoline containing up to 15% MTBE 
by volume.
METHANOL —(methyl or wood alco hol) 5% by volume
You may use gasoline containing up to 5% 
methanol by volume as long  as it also contains 
cosolvents and corrosion in hibitors to protect the 
fuel system. Gasoline co ntaining more than 5% 
methanol by volume may  cause starting and/or 
performance problems. It ma y also damage metal, 
rubber, and plastic parts of your fuel system.
Length x Width x Height 14.4 x 13.0 x 14.2 in
(367 x 331 x 360 mm)
Dry weight 28.2 lb (12.8 kg)
Engine type  4-stroke, over head cam, single cylinder
Displacement
[Bore x Stroke] 9.8 cu in (160 cm
3)
[2.5 x 2.0 in (64 x 50 mm)]
Maximum output 4.4 bhp (3.3  kW, 4.5 PS) at 3,600 rpm
Maximum torque 6.9 ft-lb (9.4  N•m, 0.96 kg•m) at 2,500 rpm
Fuel tank capacity                                                                    0.91 
Fuel consumption                                                       1,1 l  /h at 3,000 rpm
Cooling system  Forced air
Ignition system  Transistorized magneto
PTO shaft rotation  Counterclockwise
Length x Width x Height 14.4 x 13.0 x 14.5 in
(367 x 331 x 368 mm)
Dry weight 28.7 lb (13.0 kg)
Engine type  4-stroke, over head cam, single cylinder
Displacement
[Bore x Stroke] 11.4 cu in (187 cm
3)
[2.7 x 2.0 in (69 x 50 mm)]
Maximum output 5.1 bhp (3.8  kW, 5.2
  PS) at 3,600 rpm

Maximum torque 8.3 ft-lb (11.3 N•m, 1.15 kg•m) at 2,500 rpm
Fuel tank capacity                                                                   0.91 
Fuel consumption                                                      1,3 l
  /h at 3,000 rpm

Cooling system  Forced air
Ignition system  Transistorized magneto
PTO shaft rotation  Counterclockwise ITEM SPECIFICATION MAINTENANCE
Spark plug gap 0.028 – 0.031 in  (0.7 – 0.8 mm) Refer to page 6.
Valve clearance (cold) IN:  0.15 ± 0.04 mm  EX: 0.20 ± 0.04 mmSee your authorized 
Honda dealer
Other specifications  No  other adjustments needed. 
						

							10E
Wiring Diagram
CONSUMER INFORMATION   
Honda Publications
These publications will give you additional information for maintaining 
and repairing your engine.You may order them from an authorized 
Honda engine servicing dealer.
Shop ManualThis manual covers complete maintenance and overhaul 
procedures. It is intended to be used by a skilled 
technician.
Parts CatalogThis manual provides complete, illustrated parts lists.
IGNITION 
COIL SPARK 
PLUGENGINE STOP 
SWITCH