Kubota KBL31 Owner's manual

KBL31
Owner’s/Operator’s Manual
Completely read and understand this manual before using this product.

＿1 ＿
This Owner’s/Operator’s Manual is designed to familiarize the operator with the various features
and component parts of the equipment and to assist you with the assembly, operation and mainte-
nance of your new Handheld Blower.
It is essential that any operator of this Handheld Blower product reads and understands the
contents of this manual before using the Handheld Blower.
Important safety instructions will be identied by the following safety symbol:
FOREWORD
TABLE OF CONTENTS
SPECIFICATIONS
Important Notice
The benets to the consumer given by this warranty are in addition to other rights and remedies of
the consumer under a law in relation to the goods or services to which this warranty relates. Our
goods come with guarantees that cannot be excluded under the Australian consumer law. You are
entitled to a replacement or refund for a major failure and for compensation for any reasonable
foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure does not amount to a major failure.
Failure to comply with the instructions in this manual may result in serious injury or death.
For additional assistance, contact any local authorized KUBOTA dealer.
Model KBL31
Length×Width×Height ※1 325×255×370mm
Dry Weight ※1 4.3kg
Engine Displacement 30.1cm3
Fuel Tank Capacity 0.5L
Carburetor Walbro Diaphragm Type
Ignition System Solid State
Spark Plug:
Make
Type
Electrode Gap
NGK
BPMR8Y
0.6 ～0.7mm
Fuel Mixture: Use only non-leaded regular petrol.
Two-Stroke oil mix 25～50:1 ratio must be approved for air-cooled engines.
Guaranteed Sound Power Level (Max. rpm) 108dB(A)
Vibration Level Handle (Max. rpm) 13m/s2
Maximum Air Volume 13m3/min
※1. Dry weight without Pipe A and B
Foreword ....................................................... 1 Starting and stopping procedure ................. 10
Specifications ................................................ 1 Carburetor adjustment ................................ 12
Product description........................................ 2 Operation the Handheld Blower .................. 13
Marking.......................................................... 3 Regular maintenance .................................. 13
Symbol Explanation
.......................................
3 Storage
........................................................ 18
Safety instructions ......................................... 4 Troubleshooting .......................................... 19
Assembly
....................................................... 7
Maintenance period
...................................... 19
Before operation............................................ 8

＿2 ＿
MODEL:KBL31
PRODUCT DESCRIPTION
PIPE B
PIPE A
STOP SWITCH HANDLE
FAN COVER
AIR INTAKE SCREEN
AIR CLEANER ENGINE
RECOIL STARTER
SERIAL NUMBER
(ON THE TOP OF CRANKCASE)
FUEL TANK
THROTTLE SETTING LEVER THROTTLE TRIGGER

＿3 ＿
MARKING
SYMBOL EXPLANATION
①MODEL NAME
②SERIAL No. (STAMPED)
③
See SYMBOL EXPLANATION
④
GUARANTEED SOUND POWER LEVEL
⑤
Read and understand this Owner’s/Operator’s Manual before using this product.
Fire Danger: Petrol is highly ammable. Never add fuel to the Handheld Blower with
a running or hot engine. Do not smoke or place any sources of heat in the vicinity of
the fuel.
Breathing exhaust fumes can cause death. Never start or run the engine inside a close
room or building.
Hot Surface Warning: Contact may cause burns. During use and for some time after
stopping the engine, the engine is very hot. Do not touch engine components such a
cylinder, mufer and engine covers until the engine has cooled to ambient
temperature.
Moving parts Warning: Contact with rotation fan or other moving parts could cause
serious personal injury or death. Keep hands, feet and clothing away from fan and
other moving parts.
Always use:
● A protective helmet.
●Ear protection.
●Protective glasses or visor.
③
①
⑤
②
④

＿4 ＿
OPERATOR SAFETY
1. Read and understand this Owner’s/Operator’s Manual before using this product. Be thoroughly
familiar with the proper use of this product.
2. Never allow children to operate the Handheld Blower. It is not a toy. Never allow adults to op-
erate the unit without first reading the Operator’s Manual.
3. Always wear eye protection.
4.
Wear hearing protection.
5. Always wear sturdy boots with nonslip soles.
6. Always wear heavy long pants, boots and gloves. Do not wear loose
clothing, jewelry, short pants, sandals or go barefoot. Secure hair so
it is above shoulder length.
7. Always wear a face filter mask.
8. Never operate this Handheld Blower when you are tired, ill, under the influence of alcohol,
drugs or medication.
9. Never start or run the engine inside a closed room or building.
Breathing exhaust fumes can cause death.
10. Keep handles clean of oil, fuel and dirt.
The warning system in This manual identifies potential hazards and has special safety messages
that help you and others avoid personal injury, even death.
, and are signal words to identify the level of hazard.
: signals an extreme hazard that will cause serious injury or death if the recom-
mended precautions are not followed.
: signals a hazard that may cause serious injury or death if the recommended pre-
cautions are not followed.
: signals a hazard that may cause minor or moderate injury if the recommended
precautions are not followed. Two other words are also used to highlight informa-
tion. “Important” calls attention to special mechanical information and “Note” em-
phasizes general information worthy of special attention.
SAFETY INSTRUCTIONS

＿5 ＿
HANDHELD BLOWER SAFETY
1. Make sure the Handheld Blower is correctly assembled as instructed in the Assembly section
of this manual.
2. Before each use, inspect the Handheld Blower, replace damaged parts, and check for fuel
leaks. Make sure all fasteners are in place and tightened securely.
3. Maintain the Handheld Blower in accordance with the recommended maintenance intervals
and procedures detailed in the “Maintenance” section, beginning on page 13.
4.
Use the correct accessories. Never use replacement parts that are not approved by KUBOTA.
5. Shut off the engine before performing maintenance or working on the machine.
6. If running problems or excessive vibration occur, stop immediately and inspect the unit for the
cause. If the cause cannot be determined, or is beyond your ability to correct, return the
Handheld Blower to your servicing dealer for repair.
FUEL SAFETY
1. Petrol is highly flammable and must be handled and stored
carefully. Use a container approved for storing petrol and/or
fuel/oil mixture.
2. Mix and pour fuel outdoors and where there are no sparks or
flames.
3. Do not smoke near fuel storage containers or the Handheld
Blower. Do not smoke while operating the Handheld Blower.
4.
Do not overfill the fuel tank. Stop filling 6 ~ 13 mm (1/4 ~ 1/2
inch) from the top of the tank.
5. Wipe up any spilled fuel before starting the engine.
6. Move the Handheld Blower at least 3 m (10ft.) away from
the fueling location before starting the engine.
7. Do not remove the fuel tank cap while the engine is running
or immediately after stopping the engine.
8. Allow the engine to cool before refueling.
9. Empty the fuel tank before storing the Handheld Blower.
Fuel should be emptied after each use as fuel remaining in
the tank may leak during storage.
10. Store both fuel and the Handheld Blower away from open
flame, sparks and excessive heat. Make sure fuel vapors
cannot reach sparks or open flames from heaters, furnaces,
electric motors, etc.
WIPE UP ANY FUEL SPILLAGE
Min. 3 m

＿6 ＿
OPERATING SAFETY
1. THIS HANDHELD BLOWER CAN CAUSE SERIOUS INJURIES. Read the instructions care-
fully. Be familiar with all controls and the proper use of the Handheld Blower.
2. Avoid using the Handheld Blower near rocks, gravel, stones and similar materials which can
become dangerous projectiles.
3. Keep children, bystanders and animals outside a 15m
(50ft.) radius surrounding the area of operation.
4.
If you are approached while operating the Handheld
Blower, stop the engine.
5. Never allow children to operate the Handheld Blower.
6. Use the Handheld Blower only in daylight or adequate
artificial lighting.
7. Never operate the Handheld Blower without proper guards or other protective safety devices
in place.
8. Do not put hands or feet near any moving parts. Keep clear of hot surfaces such as the
muffler.
9. Maintain a firm footing while operating the Handheld Blower.
10. Use the right tool for the job. Do not use the Handheld Blower for any job that is not
recommended.
11. Know how to stop the machine quickly in an emergency. For information on how to stop the
engine refer to the Starting and Stopping Procedures on page 10.
12. Do not point the Handheld Blower nozzle in the direction of people or pets.
OPERATING TECHNIQUES
1. Operate power equipment only at reasonable hours — not early in the morning or late at night
when people may be disturbed. Comply with the times listed in local ordinances. Usual recom-
mendations for hours of operation are 9:00 a.m. to 5:00 p.m., Monday through Saturday.
2. To reduce noise levels, limit the number of pieces of equipment used at any one time and op-
erate power blowers at the lowest possible throttle speed to do the job.
3. Check your equipment before operation, especially the muffler, air intakes and air filters.
4.
Use rakes or brooms to loosen debris before blowing.
5. In dusty conditions, slightly dampen surfaces or use a mister attachment when water is available.
6. Conserve water by using power blowers instead of hoses for many lawn and garden applica-
tions, including areas such as gutters, screens, patios, grills, porches and gardens.
7. Use the full blower nozzle extension so the air stream can work close to the ground.
15 m Minimum

＿7 ＿
8. Watch out for children, pets, open windows, or freshly washed cars and blow debris safely
away.
9. After using blowers and other equipment, CLEAN UP! Dispose of debris in trash receptacles.
BLOWER PIPES INSTALLATION
1. Align groove in pipe A with pegs on
blower housing and slide pipe A on to
housing.
2. Rotate pipes A clock wise to lock it into
place.
3. Align groove in pipe B with pegs on
pipe A and slide pipe B until proper
position.
4.
Rotate pipe B clockwise to lock it into
place.
ASSEMBLY
WARNING
Stop the engine before installing or removing blower pipes.
Peg
2
1
1
3
2
4

＿8 ＿
WARNING
POTENTIAL HAZARD
・Petrol contains gasses that can build up pressure inside a gas tank.
WHAT CAN HAPPEN
・Fuel can be sprayed on you when removing fuel tank cap.
HOW TO AVOID THE HAZARD
・Remove fuel tank cap slowly to avoid injury from fuel spray.
DANGER
POTENTIAL HAZARD
・In certain conditions petrol is extremely ammable and highly explosive.
WHAT CAN HAPPEN
・A re or explosion from petrol can burn you, others, and cause property damage.
HOW TO AVOID THE HAZARD
・Use a funnel and ll the fuel tank outdoors, in an open area, when the engine is cold.
Wipe up any petrol that spills.
・Do not ll the fuel tank completely full. Add petrol to the fuel tank until the level is 6 ~ 13mm
(1/4 ~ 1/2 inch) below the bottom of the ller neck. This empty space in the tank allows petrol
to expand.
・Never smoke when handling petrol, and stay away from an open ame or where petrol fumes
may be ignited by a spark.
・Store petrol in an approved container and keep it out of the reach of children.
・Never buy more than a 30-day supply of petrol.
FUELING
WARNING! The following precautions will lessen the risk of fire.
1. Do not smoke near fuel.
2. Mix and pour fuel outdoors and where there are no sparks or flames.
3. Always shut off the engine before refueling. Never remove the fuel tank cap while the engine
is running or immediately after stopping the engine.
4.
Always open the fuel tank cap slowly to release any possible pressure inside the tank.
5. Do not overfill the fuel tank. Stop filling 6 ~ 13 mm (1/4 ~ 1/2 inch) from the top of the tank.
6. Tighten the tank fuel cap carefully but firmly after refilling.
7. Wipe up any spilled fuel before starting the engine.
8.
Move the Handheld Blower at least 3 m (10ft.) away from the fueling location and fuel storage
container before starting the engine.
BEFORE OPERATION

＿9 ＿
FUEL; MIXING PETROL AND OIL
IMPORTANT: The engine used on this Handheld Blower is of a two-stroke design. The internal
moving parts of the engine, i.e., crankshaft bearings, piston pin bearings and piston to cylinder wall
contact surfaces, require oil mixed with the petrol for lubrication. Failure to add oil to the petrol or
failure to mix oil with the petrol at the appropriate ratio will cause major engine damage which will
void your warranty. For your fuel premix, only use a quality oil designed for two-stroke air-cooled
engine.
FUEL MIXTURE: Always use a good quality two-stroke, air-cooled engine oil mixed at a ratio of 25～50:1.
MIXING INSTRUCTIONS: Always mix fuel and oil in a clean container approved for petrol. Mark
the container to identify it as fuel mix for the Handheld Blower. Use regular unleaded petrol and fill
the container with half the required amount of petrol. Pour the correct amount of oil into the con-
tainer then add the remaining amount of petrol. Close the container tightly and shake it momentarily
to evenly mix the oil and the petrol before filling the fuel tank on the Handheld Blower.
NOTE:
1. Never mix petrol and oil directly in the Handheld Blower fuel tank.
2. Do not use National Marine Manufacturer’s Association (NMMA) or BIA certified oils. This type
of two-stroke engine oil does not have the proper additives for air-cooled, two-stroke engines
and can cause engine damages.
3.
Do not use automotive motor oil. This type of oil does not have the proper additives for air-
cooled, two-stroke engines and can cause engine damage.
When refilling the Handheld Blower fuel tank, clean around the fuel tank cap to prevent dirt and
debris for entering the tank during cap removal. Always shake the premix fuel container momen-
tarily before filling the fuel tank.
Always use a spout or funnel when fueling to reduce fuel spillage. Only fill the tank to within 6 ~ 13
mm (1/4 ~ 1/2 inch) from the top of the tank. Avoid filling to the top of the tank filler neck.
Fuel Mixture Chart
Petrol
Two-stroke oil
50:1 25:1
ISO-L-EGC/ EGD ,JASO class FC/ FD,
or equivalent two-stroke oil
ISO-L-EGB , JASO class FB,
or equivalent two-stroke oil
1 litre 20 mL 40 mL
2 litres 40 mL 80 mL
5 litres 100 mL 200 mL
PETROL
HALF
PETROL
ADD REMAINING
PETROL
SHAKE
(MIX OIL AND PETROL)
ADD OIL
FILL
OIL PETROL

＿10 ＿
COLD STARTING PROCEDURE
This Handheld Blower is equipped with a
fuel primer and a choke system. To start a
“cold” engine properly, perform the following
procedure:
STARTING AND STOPPING PROCEDURE
BEFORE STARTING THE ENGINE: Fill the fuel tank as instructed in the BEFORE OPERATION
section of this manual (page8). Rest the Handheld Blower on the ground. Make sure that the area
is clear of any broken glass, nails, wire, rocks or other debris. Keep all bystanders, children and
animals away from the working area.
1. Pump the primer bulb at the bottom of
the carburetor until fuel can be seen
flowing through the fuel return line to
the fuel tank. (Flowing fuel should be
almost clear, not foamy or full of
bubbles.)
2. Move the choke lever to the closed ( )
position.
3.
Move the stop switch to the “ON”
position.
4. (1) Press the throttle trigger.
(2) Move the throttle setting lever to half
position.
(3) Release the throttle trigger.
(4) Release the throttle setting lever.
(Throttle is kept in half position.)
Primer Bulb
Choke Lever
START (ON)
STOP SWITCH
Idle Position
Throttle Setting Lever
STOP
Starter Grip
Fuel
Return
Line
Full Throttle
Position
Throttle Trigger

＿11 ＿
5. Hold the Handheld Blower with your left
hand and press it down firmly. Hold the
assist handle with your right foot gently.
IMPORTANT: Be careful not make dam-
ages to fuel tank or the blower by your
foot.
6. Pull the starter grip. Grasping the starter
grip, slowly pull the starter cord out until
you feel resistance, then pull the cord
quickly and powerfully. Pull the starter
grip until the engine starts.
7.
After the engine starts, move the throttle setting lever to the idle position, then move the choke
lever to the open
( ) position.
If the engine stops running before you move the choke lever to the open
( ) position:
A. Go ahead and open the choke.
B. Make sure the throttle setting lever is set to the idle position.
C. Pull the starter grip until the engine starts.
HOT RESTART
To start the engine that is already warmed up (hot restart), or if the ambient temperature exceeds
20°C:
1. Pump the primer bulb at the bottom of the carburetor until fuel can be seen flowing through the
fuel return line to the fuel tank.
2. Move the choke lever to the
open ( ) position and move the stop switch to the “ON”
position.
3. More the throttle setting lever to the idle position and pull the starter grip.
4. If the engine fails to start after three to four pulls, follow the instruction in the Cold Starting
Procedure section (page10).
If the engine fails to start after you follow the above procedures, contact an authorized KUBOTA
dealer.
NOTE: 1. Don't pull the starter cord out completely.
2. Do not release the starter cord from the fully extended position.
TO STOP THE ENGINE
1. Move the throttle setting lever to the idle position. Release the throttle trigger.
2. Slide the stop switch to the “STOP” position.
Fuel TANK
Assist Handle

＿12 ＿
CARBURETOR ADJUSTMENT
This Handheld Blower is equipped with non-adjustable fuel mixture carburetor. The engine idle
speed is the only adjustment for the operator.
Wear the recommended personal protective equipment and observe all safety instructions.
Engine Idle Speed:
When the throttle trigger and the throttle setting lever is idle position the engine should return to an
idle speed between 2700 and 3300 RPM. The engine should not stall (stop running) at engine idle
speed.
To adjust the engine idle speed, rotate the idle
speed adjustment screw on the carburetor.
• Turn the idle speed screw in (clockwise)
to increase the engine idle speed.
• Turn the screw out (counterclockwise)
to decrease the engine idle speed.
If idle speed adjustment is necessary, and
after adjustment the engine stalls, stop using
the Handheld Blower immediately!
Contact your local authorized KUBOTA Dealer for assistance and servicing.
WARNING
・Idle speed adjustment should be checked each time the unit is operated.
WARNING
POTENTIAL HAZARD
・Engine must be running to make carburetor adjustments.
・When engine is running, fan is rotating and other parts are moving.
WHAT CAN HAPPEN
・Contact with rotating fan or other moving parts could cause serious personal injury or death.
HOW TO AVOID THE HAZARD
・Keep hands, feet and clothing away from fan and other moving parts.
・Keep all bystanders and pets away from unit while making carburetor adjustments.
Idle Speed
Adjuster Screw

＿13 ＿
OPERATION THE HANDHELD BLOWER
REGULAR MAINTENANCE
WARNING
・Always wear eye protection, hearing protection, gloves, face lter mask and sturdy boots with
nonslip soles when operating the Handheld Blower.
WARNING
・Stop the engine before performing maintenance.
1. Allow the engine to warm up for a few minutes.
2.
Control engine speed by the throttle trigger, or set the engine speed by the throttle setting lever.
*To adjust the throttle setting lever.
Press the throttle trigger, then adjust the throttle setting lever as you wish operation.
3. Operate lower speed to blow leaves or debris ground.
4. If the blow is not enough to blow, open the throttle gradually.
NOTE: Operate Handheld Blower at the lowest throttle setting to do the job.
Maintenance, replacement or repair of emission control devices and systems
may be performed by any repair establishment or individual; however, war-
ranty repairs must be performed by a dealer or service center authorized by
KUBOTA, The use of parts that are not equivalent in performance and durabil-
ity to authorized parts may impair the effectiveness of the emission control
system and may have a bearing on the outcome of a warranty claim.
AIR FILTER
Maintenance Interval
• The air filter should be cleaned and inspected each time the Handheld Blower is used, or more
often when working in extremely dusty conditions.
• Replace after every 100 hours of operation.
Air Filter Cleaning
1. Move the choke lever to the closed ( ) position.
2. Loosen the knob and remove the air cleaner cover.
3. Remove the foam element and filter screen from the air cleaner body.

＿14 ＿
4. Clean the foam element and filter screen with air blow or warm soapy water.
5. Reassemble the filter screen and foam element to the air cleaner body. Foam element must be
located as the felt side face to the cleaner cover.
6. Reinstall the air cleaner cover and tighten the knob.
FUEL FILTER
Maintenance Interval
• The fuel filter should be cleaned and inspected for damage after each 20 hours of operation.
• The fuel filter should be replaced after every 100 hours of operation.
Fuel Filter Replacement
The fuel filter is attached to the end of the fuel
pick-up hose inside the tank.
To replace the fuel filter:
1. Make sure the fuel tank is empty.
2. Loosen the fuel tank cap, and pull up
and remove the cap holder.
3. Using a wire hook, gently pull the fuel
filter out through the fuel filler opening.
4. Grasp the fuel hose next to the fuel filter
fitting and remove the filter, but do not
release the hose.
5. While still holding on to fuel hose, attach
the new fuel filter.
6. Drop the new fuel filter back into the fuel
tank.
7. Make sure that the fuel filter is not stuck
in a corner of the tank, and that the fuel
hose is not doubled over (kinked)before
refueling.
Filter Screen
Air Cleaner Cover
Felt Side
Foam Element
Knob
Fuel Pick-up Hose
Wire
Fuel Filter
Cap Holder
Fuel Tank
Fuel Tank Cap

＿15 ＿
SPARK PLUG
Maintenance Interval
• The spark plug should be removed from the engine and checked after each 25 hours of
operation.
• Replace the spark plug after every 100 hours of operation.
CYLINDER COOLING FINS
Maintenance Interval
• The cylinder cooling fins should be cleaned after every 25 hours of operation, or once a week,
whichever comes first.
• Air must flow freely around and through the cyl-
inder cooling fins to prevent engine overheating.
Leaves, grass, dirt and debris buildup on the
fins will increase the operating temperature of
the engine, which can reduce engine perfor-
mance and shorten engine life.
Spark Plug Maintenance
1. With the engine at ambient (room) tempera-
ture, twist the high tension lead boot on the
spark plug back and forth a couple of times to
loosen the boot, then pull the boot off of the
spark plug.
2. Remove the spark plug.
3. Clean the electrodes with a stiff brush.
4. Adjust the electrode air gap to 0.6- 0.7 mm
(.024-.028 in).
5. Replace the spark plug if it is oil-fouled, damaged, or if the electrodes are worn down.
6. Do not overtighten the spark plug when installing. The tightening torque is 10.7-16.6 N·m
(95-148 in. lbs).
Cooling Fin Cleaning
1. With the engine at ambient (room) tempera-
ture, loosen the knob and remove the air clean-
er cover.
2. Twist the high tension lead boot on the spark
plug back and forth a couple of times to loosen
the boot, then pull the boot off of the spark plug.
3. Remove the four screws retaining the topcover,
then remove the topcover.
4. Clean all dirt and debris from the cooling fins
and from around the cylinder base.
5. Reinstall the topcover and the cleaner cover.
0.6 - 0.7 mm (0.024 - 0.028 inches)
TIPS
Air Cleaner Cover
Topcover
○＋ Driver
3mm Allen Wrench
Knob

＿16 ＿
SPARK ARRESTER
Maintenance Interval
• The spark arrester should be inspected and cleaned after every 25 hours of use.
• Replace the screen if it cannot be thoroughly cleaned, or if it is damaged.
ENGINE SCREEN
Maintenance Interval
The screen should be cleaned and inspected
each time the Handheld Blower is used.
Screen Cleaning
Clean all dirt and debris from the screen.
WARNING
POTENTIAL HAZARD
・Mufer surface becomes hot when Handheld Blower is in operation and remains hot for some
time after the engine is shut off.
WHAT CAN HAPPEN
・Contact with hot mufer surfaces could cause a burn.
HOW TO AVOID THE HAZARD
・Make sure the mufer is cool before inspecting and cleaning the spark arrester.
Spark Arrester Maintenance
1. With the engine at ambient (room) temperature, loosen the knob and remove the air cleaner
cover (see cooling fin cleaning.).
2. Twist the high tension lead boot on the
spark plug back and forth a couple of
times to loosen the boot, then pull the
boot off of the spark plug.
3. Remove the four screws retaining the
topcover, then remove the topcover (see
cooling fin cleaning).
4. Remove the two screws retaining the
muffler.
5. Remove and clean the tail, gasket and
spark arrester with a safety solvent and
a stiff brush. If any part cannot be thor-
oughly cleaned, it must be replaced.
Mufer
Spark Arrester
3mm Allen
Wrench
Tail
Screen

＿17 ＿
6. Reinstall the spark arrester and tail onto
the muffler, then reinstall and tighten the
two screws. The hole of tail must be lo-
cated in left (refer to the picture.)
7. Reinstall the topcover and the cleaner
cover.
EXHAUST MUFFLER
Maintenance Interval
• The muffler should be inspected and cleaned after each 100 hours of use.
AIR INTAKE SCREEN
Maintenance Interval
The air intake screen should be cleaned
and inspected each time Handheld Blower
is used and when air flow dropped down
during operation.
Air Intake Screen Cleaning
Clean all dirt and debris from the air intake
screen.
Muffler Maintenance
1. With the engine at ambient (room) temperature, loosen the knob and remove the air cleaner
cover (see cooling fin cleaning.).
2. Twist the high tension lead boot on spark plug back and forth a couple of times to loosen the
boot, then pull the boot of the spark plug.
3. Remove the four screws, and remove the topcover (see cooling fin cleaning).
4. Remove the spark arrester (see spark arrester maintenance). Clean the muffler with a stiff
brush.
IMPORTANT: Be careful not to allow any dirt or debris to fall into the exhaust port, as this
can cause engine damage.
5. Reinstall the spark arrester and tail onto the muffler, then reinstall and tighten the two screws.
The hole of tail must be located in left (see spark arrester maintenance).
6. Reinstall the topcover and the cleaner cover.
WARNING
・Never use the Handheld Blower without the air intake screen. Before starting the engine,
check the screw is securely tightened and no damage.
Air Intake Screen
Screw 3mm
Allen Wrench
Hole of Tail

＿18 ＿
GENERAL CLEANING AND TIGHTENING
The KUBOTA Handheld Blower will provide maximum performance for many, many hours if it is
maintained properly. Good maintenance includes regular checking of all fasteners for correct tight-
ness, and cleaning the entire machine.
WARNING
POTENTIAL HAZARD
・When engine is running, fan is rotating and other parts are moving.
WHAT CAN HAPPEN
・Contact with rotating fan or other moving parts could cause serious personal injury or death.
HOW TO AVOID THE HAZARD
・Always turn off your Handheld Blower before you clean or perform any maintenance on it.
STORAGE
For long term storage of the Handheld Blower:
1. Empty the fuel tank into a suitable fuel storage
container approved for petrol.
2. Pump the primer bulb on the carburetor until all
fuel is discharged through the clear fuel return
hose.
3. Run the engine to remove any fuel that may
remain in the carburetor.
4. Perform all regular maintenance procedures
and any needed repairs.
5. Remove the spark plug and squirt a very small
amount of oil into the cylinder.
6. Pull the starter grip once.
7. Slowly pull the starter grip to bring the piston to the top of the cylinder (TDC).
8. Reinstall the spark plug.
9. Store the Handheld Blower in a dry place away from excessive heat, sparks or open flame.
CAUTION
POTENTIAL HAZARD
・Oil may squirt out of the spark plug opening when you pull the starter grip.
WHAT CAN HAPPEN
・Oil can cause eye injuries.
HOW TO AVOID THE HAZARD
・Protect your eyes and keep your face away from the spark plug opening.

＿19 ＿
Problem Cause Action
Engine will not start
STOP switch set to off position
Empty fuel tank
Primer bulb wasn’t pushed enough
Engine ooded
Move switch to on position
Fill fuel tank
Press primer bulb until fuel ows
through the fuel return line
Use warm engine starting procedure
Engine Lacks Power or dropped
down when blowing
.
Dirty air lter
Clogged spark arrester or exhaust port
Blower pipes clogged, loos or damaged
Clean or replace air lter
Clean spark arrester or exhaust port.
Unclog or tighten or replacee
If further assistance is required, contact your local authorized KUBOTA service dealer.
TROUBLESHOOTING
MAINTENANCE PERIOD
Maintenance Daily Every
25 hours
Every
50 hours
Every
100 hours
Check and replenish fuel ●
Check for fuel leakage ●
Check bolts, nuts and screws for tightness or missing ●
Check engine idle speed adjustment ●
■Clean air lter element ●
■Remove dust and dirt from engine screen ●
■Remove dust and dirt from air intake screen ●
Tighten bolts and nuts ●
Clean spark plug and adjust electrode gap ●
■Remove dust and dirt from cylinder ns ●
●Remove carbon deposits in exhaust port ●
●Clean spark arrester ●
Replace fuel lter ●
●
Remove carbon deposits on piston head and combustion chamber
●
●Remove carbon deposits in transfer port ●
Replace fuel tube, fuel tank cap gasket It is recommended to replace every 3 years
●: Service to be performed by an authorized KUBOTA engine dealer.
■: Service more frequently under dusty conditions.
NOTE:
The service intervals indicated are to be used as a guide.
Service to be performed more frequently as necessary depending on operating condition.