Kawasaki FS730V User Manual

FS730V Electronic Fuel Injection

4 stroke air-cooled V-twin gasoline engine

OWNER’S MANUAL

SAFETY AWARENESS

Whenever you see the symbols shown below,
heed their instructions! Always follow safe operating
and maintenance practices.

DANGER

DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.

WARNING

WARNING indicates a hazardous situation
which, if not avoided, could result in death
or serious injury.

NOTICE

NOTICE is used to address practices not
related to personal injury.

NOTE

○NOTE indicates information that may help or guide

you in the operation or service of the vehicle.

READ THIS FIRST

For your safety, read this Owner’s Manual and understand it thoroughly before operating this ENGINE.

DANGER

Exhaust gas contains carbon monoxide, a colorless, odorless poisonous gas. Inhaling carbon monoxide can cause
serious brain injury or death.

DO NOT run the engine in enclosed areas. Operate only in a well-ventilated area. Gasoline is extremely ammable

and can be explosive under certain conditions, creating the potential for serious burns. When refueling, servicing
fuel system, draining gasoline and/or adjusting the carburetor:
Stop engine and allow it to cool before refueling.
DO NOT smoke.

Make sure the area is well-ventilated and free from any source of ame or sparks, including the pilot light of any

appliance.

DO NOT ll the tank so the fuel level rises into the ller neck or level surface of level gauge. If the tank is overlled,
heat may cause the fuel to expand and overow through the vents in the tank cap.

Wipe off any spilled gasoline immediately.

Engines can become extremely hot during normal operation.

To prevent re hazard:

Keep the engine at least 1 m (3.3 ft) away from buildings, obstructions and other burnable objects.

DO NOT place ammable objects close to the engine.

DO NOT expose combustible materials to the engine exhaust.
DO NOT use the engine on any forest covered, brush covered or grass covered unimproved land unless spark

arrester is installed on the mufer.

To avoid getting an electric shock, DO NOT touch spark plugs, plug caps or spark plug leads during engine
running.

To avoid a serious burn, DO NOT touch a hot engine or mufer. The engine becomes hot during operation. Before

you service or remove parts, stop engine and allow the engine to cool.
DO NOT place hands or feet near moving or rotating parts. Place a protective cover over pulley, V belt or coupling.
DO NOT run engine at excessive speeds. This may result in injury.
Always remove the spark plug caps from spark plugs when servicing the engine to prevent accidental starting.

Read warning labels which are on the engine and understand them. If any label is missing, damaged, or worn get a

replacement from your Kawasaki engine dealer and install it in the correct position.

EMISSION CONTROL INFORMATION

Fuel Information

THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED REGULAR GRADE GASOLINE ONLY. A
minimum of 87 octane of the antiknock index is recommended. The antiknock index is posted on service station
pumps in the U.S.A.

Emission Control Information

To protect the environment in which we all live, Kawasaki has incorporated an exhaust emission control
system in compliance with applicable regulations of the United States Environmental Protection Agency and
the California Air Resources Board. Also, depending on when your engine was produced, it may have an
assigned emissions durability period.
* See below for the engine emissions durability period that may apply to your engine.

Exhaust Emission Control System

The exhaust emission control system applied to this engine consists of a Electronic Fuel Injection (EFI)
system and an ignition system having optimum ignition timing characteristics. The EFI system has been
calibrated to provide lean air/fuel mixture characteristics and optimum fuel economy with a suitable air cleaner
and exhaust system.

A sealed-type crankcase emission control system is also used to eliminate blow-by gasses. The blow-by
gasses are led to a breather chamber through the crankcase and from there to the air cleaner.

Engine Emission Compliance Period
California

Engines Greater Than or Equal To 225cc

Model Year-2015 and later

Durability period-500 hours

All Other States

Engines Greater Than or Equal To 225cc

Model Year-2015 and later
Durability Period-500 hours (Category B)

* If your engine has an assigned emissions durability period it will be located on the certication label

attached to the engine (IMPORTANT ENGINE INFORMATION).

High Altitude Performance Adjustment Information

To improve the EMISSIONS CONTROL PERFORMANCE of engines operated above 1000 meters

(3300 feet), Kawasaki requires the following Environmental Protection Agency (EPA) and California Air

Resources Board (CARB) approved modications. High altitude adjustment requires replacement of carburetor

main jets. Installation of these optional parts may be performed by an authorized Kawasaki dealer, or the

consumer, following repair recommendations specied in the appropriate Kawasaki Service document or parts

catalog.

Operating with wrong conguration at an altitude may increase its emission and decrease fuel efciency and

performance.

NOTE

○When properly performed, these specied modications only are not considered to be emissions system

"tampering" and engine performance is generally unchanged as a result.

○Engine models with fuel injection do not require high altitude performance adjustment.

Maintenance and Warranty

Proper maintenance is necessary to ensure that your engine will continue to have low emission levels. This

Owner’s Manual contains those maintenance recommendations for your engine. Those items identied by the

Periodic Maintenance Chart are necessary to ensure compliance with the applicable standards.

As the owner of the engine, you have the responsibility to make sure that the recommended maintenance is

carried out according to the instructions in this Owner’s Manual at your own expense.

The Kawasaki Limited Emission Control System Warranty requires that you return your engine to an
authorized Kawasaki dealer for remedy under warranty. Please read the warranty carefully, and keep it valid by
complying with the owner’s obligations it contains.

Tampering with Emission Control System Prohibited

Federal law and California State law prohibits the following acts or the causing there of: (1) the removal or
rendering inoperative by any person other than for purposes of maintenance, repair, or replacement, of any
device or element of design incorporated into any new engine for the purposes of emission control prior to its
sale or delivery to the ultimate purchaser or while it is in use, or (2) the use of the engine after such device or
element of design has been removed or rendered inoperative by any person.

Among those acts presumed to constitute tampering are the acts listed below:

Do not tamper with the original emission related parts:

●Carburetor or fuel injection system, and their internal parts

●Spark Plug

●Magneto or electronic ignition system

●Fuel lter element

●Air cleaner element

●Crankcase

●Cylinder head

●Breather chamber and internal parts

●Intake pipe and tube

FOREWORD

We wish to thank you for purchasing this Kawasaki engine.
Please read this Owner’s Manual carefully before starting your new engine so that you will be thoroughly

familiar with the proper operation of your engine’s control, its features, capabilities and limitations.

Also read the manual of the equipment to which this engine is attached.

To ensure a long, trouble-free life for your engine, give it the proper care and maintenance described in this

manual. Always keep this manual at your ngertip so that you can refer to it whenever you need information.

This manual should be considered a permanent part of the engine and should remain with the engine when it
is sold.

Please note that the photographs and illustrations shown in this manual are based on Model FS730V EFI as

a typical example among other similar models.

All rights reserved. No part of this publication may be reproduced without our prior written permission.
This publication includes the latest information available at the time of printing. However, there may be minor

differences between the actual product and illustrations and text in this manual.

All products are subject to change without prior notice or obligation.

KAWASAKI HEAVY INDUSTRIES, LTD.

Motorcycle & Engine Company

© 2014 Kawasaki Heavy Industries, Ltd. Dec. 2014 (1) (I)

TABLE OF CONTENTS

TABLE OF CONTENTS ..................................... 7

GENERAL INFORMATION ................................ 8

Location of Safety Related Labels ................... 8

Location of Parts ............................................. 9

Engine Serial Number ..................................... 10

Tune-up Specications .................................... 10

Engine Oil Capacity ......................................... 11

Battery Capacity .............................................. 11

FUEL AND OIL RECOMMENDATIONS ............ 12

Fuel ................................................................. 12

Engine Oil ........................................................ 13

Fuel ................................................................. 14

PREPARATION ................................................. 14

Engine Oil ........................................................ 15

STARTING ......................................................... 16

Start Engine ..................................................... 16

OPERATING ...................................................... 18

Warming Up .................................................... 18

Engine Inclination ............................................ 19

STOPPING ......................................................... 20

Stopping the Engine ........................................ 20

Ordinary Stop ............................................... 20

Emergency Stop ........................................... 20

ADJUSTMENT ................................................... 21

Engine Speed Adjustment ............................... 21

MAINTENANCE ................................................. 22

Periodic Maintenance Chart ............................ 22

Oil Level Check ............................................... 24

Oil Change ...................................................... 25

Oil Filter Change ............................................. 26

Air Cleaner Service ......................................... 27

Foam Element .............................................. 27

Paper Element .............................................. 27

Fuel Filter and Fuel Pump Service .................. 29

Spark Plug Service .......................................... 30

Fuse Service ................................................... 31

MIL (Malfunction Indicator Light) ..................... 31

Cooling System Cleaning ................................ 32

STORAGE .......................................................... 35

Engine Storage Procedure .............................. 35

TROUBLESHOOTING GUIDE ........................... 36

ENVIRONMENTAL PROTECTION .................... 37

SPECIFICATIONS ............................................. 38

WIRING DIAGRAM ............................................ 39

8 GENERAL INFORMATION

GENERAL INFORMATION

Location of Safety Related Labels

A. Engine Maintenance
B. Warning Label
C. Emission Label
D. Product Label (Engine Serial Number)

A

B

C

D

GENERAL INFORMATION 9

Location of Parts

D

M

N

K

L

G

G

J

D

H

A

I

R

E

P

O

F

B

F

C

A. Oil Gauge / Filler
B. Oil Filter
C. Oil Drain Plug
D. Air Cleaner
E. Throttle Body / ECU
F. Spark Plug Cap /

Spark Plug

G. Guard /

Air Inlet Screen
H. Fan Housing
I. Electric Starter

SQ

J. Voltage Regulator
K. Fuel Tube
L. Fuel Filter
M. Fuel Pump (Electric)
N. Fuel Pump (Pulse)
O. Injector
P. Diagnostic Connector
Q. 10 Pin Connector
R. 8 Pin Connector
S. Fuse

10 GENERAL INFORMATION

Engine Serial Number

The engine serial number is your only means of
identifying your particular engine from others of the
same model type.

This engine serial number is needed by your
dealer when ordering parts.

A

A. Engine Serial Number

Tune-up Specications

ITEM Specications

Ignition Timing Unadjustable

Spark Plugs:
Gap

Low Idle Speed 1550 r/min (rpm)

High Idle Speed 3600 r/min (rpm)

Valve Clearance

Other Specications

NGK BPR4ES

0.75 mm (0.030 in)

IN 0.05 - 0.10 mm
(0.002 - 0.004 in)
EX 0.05 - 0.10 mm
(0.002 - 0.004 in)

No other adjustment
needed

NOTE

○High and low idle speeds may vary depending on

the equipment on which the engine is used. Refer

to the equipment specication.

GENERAL INFORMATION 11

Engine Oil Capacity

Engine Oil Capacity

1.8 L (1.9 US·qt)

[when oil lter is not removed]

FS730V

2.0 L (2.1 US·qt)

[when oil lter is removed]

Battery Capacity

WARNING

For electrical safety, always remove cable
from negative (–) side of battery before
attempting any repair or maintenance.

Battery Capacity Recommended

Minimum Recommended Battery Capacity

12 V 550 CCA Class

12 FUEL AND OIL RECOMMENDATIONS

FUEL AND OIL RECOMMENDATIONS

Fuel

Use only clean, fresh, unleaded regular grade
gasoline.

NOTICE

Do not mix oil with gasoline.

Octane Rating

The octane rating of a gasoline is a measure of its
resistance to "knocking". Using a minimum of 87
octane by the antiknock index is recommended.
The antiknock index is posted on service station
pumps in the U.S.A.

NOTE

○If "knocking" or "pinging" occurs, use a different

brand of gasoline or higher octane rating.

○When not operating your kawasaki engine more

than once per month, you can mix a fuel stabilizer

with gasoline in the fuel tank. Fuel stabilizer

additive could inhibit oxidation of fuel.

Oxygenated Fuel

Oxygenates (either ethanol or MTBE) are added
to the gasoline. If you use the oxygenates, be sure
it is unleaded and meets the minimum octane rating
requirement.

The followings are the EPA approved percentages
of fuel oxygenates.

ETHANOL: (Ethyl or Grain Alcohol)

You may use gasoline containing up to 10%

ethanol by volume.

MTBE: (Methyl Tertiary Butyl Ether)

You may use gasoline containing up to 15%

MTBE by volume.

METHANOL: (Methyl or Wood Alcohol)

You may use gasoline containing up to 5%

methanol by volume, as long as it also contains

cosolvents and corrosion inhibitors to protect the

fuel system. Gasoline containing more than 5%

methanol by volume may cause starting and/or

performance problems. It may also damage metal,

rubber, and plastic parts of your fuel system.

Engine Oil

The following engine oils are recommended.

API Service Classication: SF, SG, SH, SJ or SL.

Oil Viscosity

Choose the viscosity according to the temperature

as follows:

-20ºC -10ºC 0ºC 10ºC 20ºC 30ºC 40ºC

SAE40

SAE30

SAE20W-50

FUEL AND OIL RECOMMENDATIONS 13

SAE5W-20

SAE5W-20

-4ºF 14ºF 32ºF 50ºF 68ºF 86ºF 104ºF

SAE10W-40

SAE10W-30

NOTE

○Although 10W-40 engine oil is the recommended

oil for most conditions, the oil viscosity may need

to be changed to accommodate atmospheric
conditions. Using 20W-50 oil in higher ambient

temperatures may reduce oil consumption.

14 PREPARATION

PREPARATION

Fuel

WARNING

Gasoline is extremely ammable and can be

explosive under certain conditions, creating
the potential for serious burns. Turn the
ignition switch to "OFF". Do not smoke.
Make sure the area is well-ventilated and

free from any source of ame or sparks;

this includes any appliance with a pilot light.

Never ll the tank completely to the top. If
the tank is lled completely to the top, heat
may cause the fuel to expand and overow

through the vents in the tank cap. After
refueling, make sure the tank cap is closed
securely. If gasoline is spilled on the fuel
tank, wipe it off immediately.

●Place the engine on level surface before fueling.

●Remove the fuel tank cap.

●Slowly pour fuel into the tank through the fuel

strainer.

●Close the tank cap securely.

Engine Oil

Check the engine oil daily before starting the engine
otherwise shortage of the engine oil may cause
serious damage to the engine such as seizure.

●Place the engine on level surface. Clean area

around the oil gauge before removing it.

●Remove the oil gauge and wipe it with a clean

cloth.

●Pour the oil slowly to "FULL" mark on the oil

gauge.

●Insert the oil gauge into tube WITHOUT

SCREWING IT IN.

●Remove the oil gauge to check the oil level. The

level should be between "ADD" and "FULL" marks.

Do not over ll.

●Install and tighten the oil gauge.

Engine Oil Capacity

1.8 L (1.9 US·qt)

[when oil lter is not removed]

FS730V

2.0 L (2.1 US·qt)

[when oil lter is removed]

PREPARATION 15

B

A

A. Oil Gauge
B. Tube

NOTICE

The engine is shipped with out engine oil.

16 STARTING

STARTING

Start Engine

DANGER

Exhaust gas contains carbon monoxide, a
colorless, odorless poisonous gas. Inhaling
carbon monoxide can cause serious brain
injury or death. DO NOT run the engine in
enclosed areas. Operate only in a well­ventilated area.

WARNING

Engine exhaust may ignite combustible

materials and cause a re.

Keep the area around the exhaust outlet
clear. Locate the unit so that the exhaust
outlet points toward an open area and is
located at least one meter (3.3 feet) from any
obstructions.

NOTE

○Be aware of the following in order to start the

engine easily in cold weather.

○Use proper oil for expected temperature (See

FUEL AND OIL RECOMMENDATIONS chapter).

Use fresh gasoline.

○Protect the engine or the equipment from direct

exposure to weather when not in operation.

○Before starting the engine, disconnect all possible

external loads.

●Open the fuel valve on the equipment.

●Put the engine switch key into the engine switch

and turn to the ON or RUN position.

●Turn the switch key to the START position on the

equipment. Normally the engine will start within

3 seconds.

ON

ON

A

A. Fuel Valve

A. Engine Switch Key

STARTING 17

NOTICE

OFF

ON

START

Do not run the electric starter continuously
for more than 5 seconds, otherwise the
battery may discharge quickly. If the engine
does not start right away, wait 15 seconds
and try again.

NOTICE

A

Whenever you start engine, make sure
warning light is not illuminated after engine
starts.
If warning light comes on, stop engine
immediately and check oil level (If
equipped).

18 OPERATING

OPERATING

Warming Up

To warm up the engine, run it for 3 to 5 minutes
with the throttle lever in the same load position
before putting the equipment under load. Then,
move the throttle lever on the equipment to its
"FAST "position.

NOTICE

Allow engine to warm up sufciently (3 to

5 minutes at idle) before applying a load.
This will allow oil to reach all engine parts,
and allow piston clearance to reach design

specications.

NOTICE

While warming up the engine, make sure the
warning light (oil pressure) on dash is not
on. The warning light must not be illuminated
during engine operation (if equipped).

Engine Inclination

This engine will operate continuously at angles up

to 25° in any direction.

Refer to the operating instructions of the equipment
this engine powers. Because of equipment design or
application, there may be more stringent restrictions
regarding the angle of operation.

NOTICE

Do not operate this engine continuously
at angles exceeding 25° in any direction.

Engine damage could result from insufcient

lubrication.

OPERATING 19

20 STOPPING

STOPPING

Stopping the Engine

Ordinary Stop

●Move throttle lever to "SLOW" position.

●Lower the engine speed to the idle speed. Keep

running at the idle speed for about one minute.

NOTICE

Engine damage can occur from run-on or
after-burning if engine is stopped suddenly
from high speed loaded operation. Reduce
engine speed to idle for one minute before
shutting engine off.

●Turn the engine switch or the switch key to "OFF"

position.

Emergency Stop

●Immediately turn the engine switch or the switch

key to "OFF" position.

●Close the fuel valve on the equipment.

WARNING

Leaving the equipment with the key hanging
in the ignition can allow operation by
someone who does not know how to operate
it. It may cause serious accident with injury.
Always remove the key from unattended
equipment.

ADJUSTMENT

Engine Speed Adjustment

NOTE

○Do not tamper with the EFI system setting to

increase the engine speed. Every EFI system is

adjusted at the factory.

○If any adjustment is necessary, see your

authorized Kawasaki engine dealer to perform the

adjustment.

ADJUSTMENT 21

22 MAINTENANCE

MAINTENANCE

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any
nonroad engine repair establishment or individual.

Periodic Maintenance Chart

WARNING

Prevent accidental starting during engine service by removing the spark plug caps.

NOTE

○The service interval scan be used as a guide. Service more frequently as necessary by operating conditions.

MAINTENANCE 23

INTERVAL

MAINTENANCE

Check and add engine oil.
Check for loose or lost nuts and screws. ●
Check for fuel and oil leakage. ●
Check battery electrolyte level. ●
Check or clean air inlet screen. ●
Clean air cleaner foam element. ●
Clean air cleaner paper element. ●

Clean dust and dirt from cylinder and cylinder

head ns.

K

Tighten nuts and screws. ●
Change engine oil. ● ●
Clean and regap spark plugs. ●

Change oil lter. ●

Replace air cleaner paper element. ●

K Clean combustion chamber. ●
K Check and adjust valve clearance. ●
K Clean and lap valve seating surface. ●

Daily

●

First
8 hr.

Every
25 hr.

Every

100 hr.

●

Every

200 hr.

Every

250 hr.

Every

300 hr.

: Service more frequently under dusty conditions.

K: Service to be performed by an authorized Kawasaki dealer.

24 MAINTENANCE

Oil Level Check

Check the oil level daily and before each time of
operation. Be sure the oil level is maintained. See
PREPARATION chapter.

B

A

A. Oil Gauge
B. Tube

MAINTENANCE 25

Oil Change

Change oil after first 8 hours of operation.

Thereafter change oil every 100 hours.

●Run the engine to warm oil.

● Be sure the engine (equipment) is on level surface.

●Stop the engine.

●Remove the oil drain plug and drain the oil into a

suitable container while engine is warm.

WARNING

Hot engine oil can cause severe burns.
Allow engine temperature to drop from hot to
warm level before draining and handling oil.

●Install the oil drain plug.

●Remove the oil gauge and rell with fresh oil (See

FUEL AND OIL RECOMMENDATIONS chapter).

●Check the oil level (see PREPARATION

chapter).

WARNING

Engine oil is a toxic substance. Dispose
of used oil properly. Contact your local
authorities for approved disposal methods
or possible recycling.

A. Oil Drain Plug

A

26 MAINTENANCE

Oil Filter Change

●Change the oil lter every 200 hours of operation.

WARNING

Hot engine oil can cause severe burns.
Allow engine temperature to drop from hot to
warm level before attempting to remove oil

lter.

●Drain the engine oil into a suitable container.

A

B

NOTICE

Before removing the oil lter, place suitable
pan under lter connection.

●Rotate the oil lter counterclockwise to remove it.

●Coat a lm of clean engine oil on the seal of new

lter.

●Install new lter rotating it clockwise until the seal

contacts the mounting surface. Then rotate the

lter 3/4 turn more by hand.

●Supply engine oil as specied.

●Run the engine for about 3 minutes, stop the

engine, and check any oil leakage around the

lter.

●Add oil to compensate for oil level drop due to oil

lter capacity (see PREPARATION chapter).

A. Oil Filter
B. Mounting Surface

WARNING

Engine oil is a toxic substance. Dispose
of used oil properly. Contact your local
authorities for approved disposal methods
or possible recycling.

MAINTENANCE 27

Air Cleaner Service

NOTICE

To prevent excessive engine wear, do not
run the engine with the air cleaner removed.

Foam Element

Clean the foam element every 25 hours.

●Wash the foam element in detergent and water,

and dry it thoroughly.

A

B

Paper Element

Clean the paper element every 100 hours.

●Clean the paper element by tapping gently to

remove dust. If very dirty, replace the paper
element with a new one.
Replace with a new paper element yearly or 200
hours. Whichever comes rst.

NOTE

○Operating in dusty condition may require more

frequent maintenance than above.

NOTICE

Do not wash paper element.
Do not oil foam or paper element.
Do not use pressurized air to clean paper
elements.

A. Foam Element
B. Paper Element

28 MAINTENANCE

B

A

D

E

A. Air Cleaner Cover
B. Knob

C

C. Air Cleaner
D. Foam Element
E. Paper Element

Fuel Filter and Fuel Pump Service

WARNING

Improper use of solvents can result in re or

an explosion.

Do not use gasoline or low ash-point
solvents to clean the fuel lter and/or the fuel

pumps.
Clean only in a well ventilated area away

from sources of sparks or ame, including

any appliances with a pilot light.

●The fuel lter can not be disassembled. If the fuel

lter gets clogged, replace it with a new one.

●The fuel pumps can not be disassembled. If the

fuel pump fails, replace it with a new one.

MAINTENANCE 29

C

B

A

A. Fuel Filter
B. Fuel Pump (Electric)
C. Fuel pump (Pulse)

30 MAINTENANCE

Spark Plug Service

WARNING

Engines can become extremely hot during
normal operation. Hot engine components
can cause severe burns. Stop the engine and
allow it to cool before checking spark plugs.

Clean or replace the spark plugs and reset the
gap every 100 hours of operation.

●Disconnect the spark plug caps from the spark

plugs and remove the spark plugs.

●Clean the electrodes by scraping or using a wire

brush to remove carbon deposits.

●Inspect for cracked porcelain, other wear or

damage. Replace the spark plug with a new one

if necessary.

●Check the spark plug gap and reset it if necessary.

The gap must be 0.75 mm (0.030 in). To change

the gap, bend only the side electrode, using a

spark plug tool.

●Install and tighten the spark plugs to 22 N·m

(2.2 kgf·m, 16 ft·lb).

●Fit the spark plug caps on the spark plugs

securely.

●Pull up the spark plug caps lightly to make sure of

the installation of the spark plug caps.

RECOMMENDED SPARK PLUG

NGK..................................BPR4ES

A. Spark Plug Gap
B. Electrodes

MAINTENANCE 31

Fuse Service

A blade type fuse is in the fuse case located on

the side of the engine.

If a fuse blows during operation, inspect the
cause, and then replace it with a new fuse of proper
amperage.

Fuse Rating 30-amp Automotive Blade-type

MIL (Malfunction Indicator Light)

The equipment has a MIL to indicate malfunction

of the EFI system.

When the ECU of the engine detects the EFI

system trouble, MIL illuminates.

If the MIL illuminates, consult your Kawasaki

dealer.

NOTE

○The ECU also detects overheating of the engine

and lights the MIL. When the MIL illuminates,

conrm if debris or dust is inside the shroud or
fan housing before going to the shop. If there is
debris, remove them and clean inside the shroud

and housing. (refer to Cooling System Cleaning)

32 MAINTENANCE

Cooling System Cleaning

Before each operation, check that the air inlet
(rotary) screen is free from grass and debris. Clean
the screen if necessary.

Check dust or debris inside fan housing. To check
inside, remove the air cleaner cover and see inside
from the inspection ports of fan housing. Clean or

blow the dust if needed. If it is difcult to clean the

dust with the ports, remove the fan housing and
clean the dirt completely.

Every 100 hours of operation, check and clean

the cooling ns and the inside of engine shrouds

to remove grass, chaff or dirt clogging the cooling
system and causing overheating.

Cleaning procedures are as below.

●Remove the air cleaner cover and cleaner element

assembly.

●Disconnect the voltage regulator wires.

●Loose the screws and remove the air inlet guard.

●Remove torx bolts and remove the air inlet screen.

●Loose three bolts and remove three bolts at the

fan housing.

●Remove the fan housing.

●Clean and blow out the dust or debris from the

cooling fan and the engine body.

NOTE

○Cover the inlet port of the throttle body to keep

dust off the port.

NOTICE

Do not run engine before all cooling system
parts are reinstalled to keep cooling and
carburetion as intended.

Check the inlet screen.

Check and see dust
from the inspection ports.

MAINTENANCE 33

1

2

3

4

Remove Remove

Disconnect

Remove torx bolt
and screen.

Loose bolts.

Clean and blow
dust or debris.

Remove fan housing.

Remove bolts.Loose bolt.

34 MAINTENANCE

Cover the intake port.

STORAGE

STORAGE 35

Engine Storage Procedure

When not operating your Kawasaki engine more
than 30 days, add fuel stabilizer to fuel tank and run
engine for 5 minutes then drain the fuel tank.

After drain the fuel tank, run the engine at low idle
until engine stalled.

WARNING

Gasoline is extremely ammable and can be

explosive under certain conditions.
Drain fuel before storing the equipment for
extended periods.
Drain gasoline in a well ventilated area

away from any source of ame or sparks,

including any appliances with a pilot light.
Store gasoline in an approved container in
safe location.

WARNING

Gasoline is a toxic substance. Dispose
of gasoline properly. Contact your local
authorities for approved disposal methods.

●Remove the spark plugs and pour approx 1-2 mL

(0.06-0.1 cu in.) of engine oil through the spark
plug holes then screw the spark plugs in after
cranking the engine a few times. Slowly crank the
engine until you feel the compression then leave
it there. This traps the air inside the cylinders and
prevents rust inside the engine.

●Wipe the body with oily cloth.

●Wrap the engine with plastic sheeting and store it

in a dry place.

●Change engine oil for next use after period of

storage. (Refer to MAINTENANCE chapter for Oil
Change section).

A

A. Spark Plug Hole

36 TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE

If the engine malfunctions, carefully examine the symptoms and the operating conditions, and use the table

below as a guide to trouble shooting.

Symptom Probable Cause Remedy

Engine won't
start or output
is low

Low output Engine

K : Service to be performed by an authorized Kawasaki dealer.
M : For Control Panel Switch Type, move the throttle lever on the equipment away from it slow speed end to turn the engine

switch to "START" position.

Insufcient

compression

No fuel to
combustion
chamber

Spark plugs
fouled by fuel

No spark or
weak spark

overheats

Engine speed
won't increase

Faulty pistons, cylinders, piston rings, and head gaskets K
Faulty valves
Loose spark plugs Tighten properly
Loose cylinder head bolts
No fuel in fuel tank Fill fuel tank
Fuel valve is not in "ON" position. Open fuel valve lever.

Clogged fuel lter or tube Change fuel lter or fuel tube

Clogged air vent in tank cap Clean fuel tank cap
Faulty fuel system K
Over-rich fuel/air mixture Rotate engine with spark plugs removed to discharge

Clogged air cleaner Clean
Faulty fuel system K
Incorrect grade/type of fuel Change fuel
Water in fuel
Faulty spark plugs Replace spark plugs
Faulty ignition coils K
Engine switch is in "OFF" position Turn engine switch to "START" position (See M)
Clogged air cleaner Clean
Air inlet screen or cooling air path clogged with dirt
Insufcient engine oil Replenish or change oil
Carbon build-up in combustion chamber K
Poor ventilation around engine Select a better location
Faulty E-governor K

excess fuel.
Cleans park plugs.

ENVIRONMENTAL PROTECTION 37

ENVIRONMENTAL PROTECTION

To help preserve the environment, properly discard used batteries, oils and uids, or other engine components

that you might dispose of in the future.

Consult your authorized Kawasaki dealer or local environmental waste agency for their proper disposal
procedure. This also applies to disposal of the entire engine at the end of its life.

38 SPECIFICATIONS

SPECIFICATIONS

FS730V EFI

Type Air-cooled, 4-stroke OHV 4Valves, V-twin cylinder, gasoline engine

Bore × Stroke 78 × 76 mm (3.07 × 2.93 in.)

Displacement 726 mL (44.30 cu.in.)

Ignition System Inductive ignition

Direction of rotation Counterclockwise facing the PTO Shaft

Starting system Electric starter

Dry weight : kg (lbs) 46.5 kg (102.4 lbs)

NOTE

○Specications are subject to change without notice.
○Dry weight excludes that of the fuel tank and the mufer.

NOTE

1. ILLUSTRATIONS OF CONNECTOR
TERMINALS ARE FOR HARNESS SIDE.

WIRE COLORS

WIRE COLOR

BLACK

BLUE

BROWN

GRAY

GREEN

ORANGE

SYMBOL

BK

BL

BR

GR

BN

O

WIRE COLOR

PINK

RED

TAN

VIOLET

WHITE

YELLO

SYMBOL

P

R

T

V

W

Y

POWER TO PTO CLUTCH

FUSED POWER LINE
TO PTO CLUTCH

MAIN RELAY

10A ATO/ATC
FAST-ACTING FUSE

BLADE RELAY

ANALOG INPUT +
RANGE: 0-5VDC SIG
HALL EFFECT PREFERRED -

+12V SIGNAL FROM
MACHINE TO ENGAGE
PTO CLUTCH

MIL LIGHT

+12V

OPTIONAL INPUT:
OIL PRESSURE LIGHT
OR HOUR METER

FUEL RELAY

2A ATO/ATC
FAST-ACTING FUSE

KEYED +12VDC THAT
IS INDEPENDENT OF
OPERATOR PRESENCE
SWITCH.

CAN LOW

CAN HIGH

+12V TO RUN
OPEN TO KILL
(OPS SIGNAL)

10 PIN CONNECTOR

KEY SWITCH

-

A B C D E
OFF
RUN
START

KEY OPERATION

WIRING DIAGRAM

GROUND TO
ENGINE BLOCK

380

370 360

350

340

390

310

320

330

BL

CAN_LOW

380

Y/B R

CAN_HIGH

390

GN

360

BLADE_RLY_CNTL

MAIN_RLY_CNTL

8 PIN CONNECTOR

FUEL_RLY_OUT

MAIN_RLY_OUT

FUEL_RLY_CNTL

BLADE_RLY_SIG

KEY +12V SIG

HTIS_POWER

HTIS_SIGNAL

HTIS_GND

MIL_GND

OPTIONAL_IN

OPS_SW

STARTER

MAIN_RLY_IN

280270 260 250

210220 230 240

BL/W

310

W

330

BK

320

R/P

340

GN/W

370

T

350

BK/W

270

R

280

BR

260

Y/R

210

O

250

Y

230

V

240

R

220

(+) 50 60 GND

B

RED HILEC 400F SLEEVE

16AWG FUSIBLE LINK

A

BATTERY

CYLINDER HEAD
TEMPERATURE
SENSOR

C

SWITCH: PROVIDED BY KMM OR PROCURED BY OEM. IF OEM
PROVIDES, WIRES A, B, AND C MAY NEED LENGTH CHANGES.

ELECTRIC FUEL PUMP

(+) 170

180 (-)

CRANKSHAFT
POSITION
SENSOR

Control

110

120
GND

BL/W

GR

W/B

GN/BK

BK

BK

GN

BL/W

W

BK

R/P

GN/W

R

BR

Y/R

O

Y

GR/R

V/W

W/R

T

BL

Y/BR

BK/W

BK

G4

IGN #2 SIGNAL

IGN #1 SIGNAL

H4

INJ #2 SIGNAL

H1

INJ #1 SIGNAL

F1

POWER_GND

G3

POWER_GND

G2

BLADE_RLY_CNTL

E4

HTIS_POWER

E1

HTIS_SIGNAL

B4

HTIS_GND /CHTS_GND

E2

MIL_GND

F2

MAIN_RLY_CNTL

F4

ECU

VBR (12V)

G1

FUEL_RLY_CNTL

H2

BLADE_RLY_SIG

C1

KEY_12V_SIG

E3

OPS_SW

C2

CHTS (+)

D4

CPS (-)

A2

CPS (+)

A1

OPTIONAL_IN

B1

CAN_LOW

A3

CAN_HIGH

A4

WIRING DIAGRAM 39

GN/BK

R

Signal

70

80

Power

ECU

ECU Connector

(Harness Side)

CONNECTED TO
ENGINE GROUNDING
RING VIA SPLICE

CONNECTED TO 280 OF 8 PIN
CONNECTOR VIA SPLICE

GROUND

TO ENGINE

BLOCK

STARTER

Signal

90

W/BK

100

Power

GR

R

BL/W

R

30A FUSE

R

Signal

140

130

Power

IGNITION COIL #1

Signal

160

150

Power

IGNITION COIL #2

DIAGNOSTIC

REGULATOR

VOLTAGE

STATO R

CYL. #1

CYL. #2

CAN LOW

CAN HIGH
GROUND
+12V

WARNING

The engine exhaust from this product
contains chemicals known to the
State of California to cause cancer,
birth defects or other reproductive
harm.

For repair / warranty assistance please contact
your local Kawasaki Authorized Dealer,
email: [email protected] or
call toll-free 1-877-364-6404

Part No. 99920-2284-01

Printed in Japan

GB