Kawasaki KRB300A Owner's manual

Brand: Kawasaki

Model: KRB300A

Type: Owner's manual

READ THIS FIRST!

For your safety, read this Owner's Manual and understand it thoroughly

before operating this POWER BLOWER.

General

A power blower is a high-speed power tool, not a toy. For your own safety

and the safety of others, read and be sure you understand all of the safety

precautions contained in the Owner's Manual before operating the power

blower. Retain the Owner's Manual, and make it available to all persons

who will be using the power blower. Periodically, review the manual to

refresh your understanding of the safety instructions contained in it.

Careless or improper use can cause serious injury. Obey the safety

instructions contained in this manual as well as all applicable

governmental and workplace safety standards, regulations and

ordinances. Your authorized Kawasaki dealer can show you how to

operate your power blower properly.

High pressure air flow or small blown objects could injure eyes. Do not

direct air blast towards people or animals.

Do not allow children to operate the power blower. Operators must have

sufficient size, strength and maturity to be able to lift and operate the

power blower correctly for extended periods of use. They must also be

able to read, understand and follow the safety instructions in this manual.

Exhaust fumes contain poisonous carbon monoxide gas. Operate your

power blower only outdoors in a well-ventilated area. Stop the engine

immediately if exhaust fumes cause you to experience symptoms of

headache or nausea.

Gasoline is highly flammable and can be explosive under certain

conditions. Before refueling, stop engine and allow it to cool. Do not

smoke. Make sure area is well ventilated and free from any source of

flame or sparks, including appliances with a pilot light. Wipe up fuel spills

immediately. Check for and repair any fuel leaks immediately. Check for

and repair any fuel leaks before starting power blower.

Operator

Inattention or fatigue can lead to serious injury. Never operate the power

blower under the influence of drugs or alcohol. Do not use the power

blower if you are sick or taking medication that causes drowsiness. If you

get tired while using the power blower, take a break.

Always wear appropriate protective gear to avoid injury. Eye protection in

the form of goggles or properly fitted safety glasses must be worn.

Hearing protection, such as earplugs, should also be used. Have your

hearing checked regularly. protect your hands and feet by always

wearing heavy-duty boots and non-slip gloves when operating the power

blower.

Loose clothing or hair can lead to injury. Unconfined hair and loose

articles of clothing such as scarves, neckties, jewelry, and so forth, can

be drawn into the intake of the power blower. Always wear sturdy close-

fitting long-sleeve shirts and long pants that still allow freedom of

movement.Secure hair to keep away from blower intake.

Stop the engine and make sure that the fan for blowing air is stopped

when cleaning, checking, maintenance or working on the power blower.

Gasoline is highly flammable and can burn or irritate skin. Change

clothing immediately if fuel is spilled on it. Never remove fuel cap while

the engine is running.

Be alert for signs of repetitive stress injury. Using a power blower or any

vibrating machinery over a period of time may cause numbness, burning

sensations, or other indications of injury. If you experience any such

symptoms, discontinue use of the power blower and consult your doctor.

Power Blower

Modifying the power blower may make it unsafe. Never modify your

power blower, except as advised by Kawasaki in writing. Use only

Kawasaki supplied or approved attachments and repair parts.

Recoil starter rope can injure you if released suddenly. When starting the

engine, grasp the recoil starter firmly by the grip. Do not grasp the starter

rope itself. Always control the rope during rewind into the housing.

Releasing the starter rope suddenly may allow the rope to ship around

and injure you or damage the recoil starter mechanism.

Proper maintenance is essential for safety. A well-maintained power

blower is safer and operates more efficiently. Regularly check power

blower adjustments and replace worn or damaged parts. A worn out or

damaged muffler can emit sparks and cause a fire. Increased noise

levels can lead to hearing loss. Observe the maintenance schedule in

the Owner's Manual.

Store the power blower safely to prevent fire or equipment damage. To

avoid fuel leakage and fire hazard, always empty the fuel tank and run

the carburetor dry before storing your power blower. Old fuel can clog the

carburetor and lead to hard starting or poor running conditions. Store

the power blower in a dry, secure location out of the reach of children.

When transporting the power blower in a vehicle, take precautions to

secure it against damage from falling over and fuel spillage.

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

This system reduces the amount of pollutants discharged into the

atmosphere by the exhaust of this engine. The fuel, ignition and exhaust

systems of this engine have been carefully designed and constructed to

ensure an efficient engine with low exhaust pollutant levels.

Engine Emissions Compliance Period

California

Model Year - 2000 and later

Durability Period - 300 hours

All Other States

Engines less than 50 cc

Model Year - 2002 and later

Durability Period - 300 hours (Category A)

Engines 50 cc and more

Model Year 2004 and later

Durability Period - 300 hours (Category A)

If your engine has an assigned emissions durability period, it will be located on the

certification label attached to the engine (IMPORTANT ENGINE INFORMATION).

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 identified by

the Periodic Maintenance Chart are necessary to ensure compliance with

the applicable standards.

As the owner of the power blower, 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 thereof: (1) the removal or rendering inoperative by any person

other than for purposes of maintenance, repair, or replacement, 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 and internal parts

Spark plug

Magneto or electronic ignition system

Fuel Filter

Air cleaner element

TABLE OF CONTENTS

Specifications

Assembly and Preparation

Dealer/Owner Assembly Parts

Assembly

Fuel and Oil

Type

Mixing

Operating Instructions

Starting the Engine

Warming up

Operation

Stopping the Engine

Maintenance and Adjustment

Periodic Mainenance Chart

Air Filter Service

Fuel Filter Service

Spark Plug Service

Spark Arrester Cleaning Service

Storage

Troubleshooting Guide

Environmental Protection

 ITEM Specification

Valve clearance Not applicable

Ignition Timing Unadjustable

Idle Speed 3000 r/min (rpm)

Idle Mixture Screw Unadjustable

High Mixture Screw Unadjustable

Spark Plug Gap 0.6 0.7 mm (0.024 0.028 in.)

Other specifications NO OTHER SPECIFICATION

FOREWORD

Congratulations on your purchase of a new Kawasaki Power Blower.

Please read this Owner's Manual carefully before starting your

new Power Blower so that you will be thoroughly familiar with the

proper operation of our power Blower's control, its features,

capabilities, and limitations.

To ensure a long, trouble-free life for your Power Blower, give it the

proper care and maintenance described in this manual.

For those who would like more detailed information on their Power

Blower, a Service Manual is available for purchase from any

authorized Kawasaki dealer. The Service Manual contains detailed

disassembly and maintenance information. Those who plan to do their

own work should, of course,be competent mechanics and possess the

special tools described in the Service Manual.

Keep this manual at your fingertip at all times so that you can refer to

it whenever you need information.

This manual should be considered a permanent part of the Power

Blower and should remain with the Power Blower when it is sold.

without prior written permission from Kawasaki Motors Corp., U.S.A.

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 texts in this manual.

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

Model  KRB300A

Type  Backpack type

Max. air volume cfm 295

Max. air speed mph 150

Dimension L W H mm 320 350 370

 (in.) (12.6 13.8 14.6)

Weight kg(lbs) 6.0(13.2)

Engine Type Forced air cooled 2-stroke, horizontal shaft, gasoline engine

 Displacement mL(cu.in) 26.3(1.6)

 Carburetor Diaphragm type

 Ignition Solid state ignition

 Spark plug NGK BPMR6A

 Starter Recoil starter

Fuel Mixing ratio 50 parts of regular unleaded gasoline to 1 part of

  2-stroke engine oil by volume

 Tank capacity L (US qt) 0.6(0.6)

Specifications

3

4

5

6

7

8

Index No.Parts name Qty's

 1 Hose Band 2

 2 Flexible Pipe 1

 3 Base Pipe 1

 4 Middle Pipe 1

 5 Pipe 1

 6 Clamp 1

Assembly and Preparation

Dealer/Owner Assembly Parts

Assembly

Loosen the screw on the trigger lever assembly (A).

Fit the trigger lever assembly (A) onto the outer circumference of the

base pipe (B).

Fit the hose band (C) to each end of the flexible pipe (D).

Connect the flexible pipe (D) to the elbow pipe (E), and then tighten the

screw firmly to fix the flexible pipe (D) to the elbow pipe (E).

Connect the base pipe (B) to the flexible pipe (D), and then tighten the

screw firmly.

Clamp the corrugate tube assembly to the outside of the flexible pipe

(D) with the clamp (F) by pressing it over the flexible pipe.

Firmly tighten the screw to install the trigger lever assembly on the

base pipe (B).

Install the middle pipe (G) into the base pipe (B) and the pipe (H) in the

middle pipe (G).

Operating Instructions

Starting the Engine

Place the power blower on the firm ground.

Turn the engine switch (A) to the "ON" position.

Be sure the throttle lever (B) is in the fully closed (engine idle speed) position.

Slowly push the priming pump (C) several times until fuel comes out of the overflow tube (D).

The fuel that overflows by pushing the priming pump is designed to return to the fuel tank.

It is not possible to flood the engine, so push the priming pump enough times to get the engine

started

Firmly push the starter button (E) to the "Starting" position.

NOTE

A "click" can be heard when the button is firmly pushed in.

When the engine is already warm or on hot days, set the choke lever halfway or in the fully open

position.

Fuel and Oil

Type:

The fuel is mixture of gasoline and oil. A 50 to 1 mixture is recommended (50 parts

gasoline to 1 part oil). Mix it thoroughly before pouring it into the power blower fuel tank.

The octane rating of gasoline is a measure of its resistance to detonation or

"knocking". Use a gasoline with an octane equal to or higher than that shown in the

table below. The Antiknock Index is an average of the Research Octane No. (RON) and

the Motor Octane No. (MON). The Antiknock Index is posted on service station pumps

in the U.S.A. If the Antiknock Index is not posted, be sure the Research Octane No. is

adequate.

 Recommended engine oil: High quality 2-stroke air 

  cooled engine oil

 JASO service Clasification: FC class

Pour the measured amount of 2-stroke oil into an approval gasoline container and add

gasoline to the specified container amount.

NOTE

Do not use gasoline that has been stored longer than two months.

To ensure proper starting at low ambient temperatures, fresh winter grade fuel must

be used.

Filling the Tank:

Level the engine before fueling.

Open the fuel tank cap and fill the tank with 50:1 gas/oil pre-mixed fuel.

Pour slowly to avoid "spit back" and allow air to escape from the tank.

Mixing:

Recommended Mixing Ratio (50:1)

Operation

This power blower is designed to allow the operator to control the engine speed and air flow direction

using only the right hand at the trigger lever assembly.

The power blower is designed to be carried on the operator's back.

Adjust length of the straps to a comfortable operation.

NOTE

Proper use of the shoulder harness is important for effective power blower operation.

Stopping the Engine

Ordinary Stop

Return the throttle lever (D) to the idling position, and keep the engine running at idling speed for a few

seconds.

Turn the engine switch (E) to the "STOP" position.

Emergency stop

Turn the engine switch to the "STOP" position.

Return the throttle lever with the set lever to the idling position.

After allowing a few minutes warm-up period, run the engine at idling speed.

Idling speed is about 3,000 rpm

NOTE

Turn the idle screw (C) counter-clockwise for the engine speed to decrease when idling speed is

higher than 3,000 rpm.

Turn the idle screw clockwise to increase the engine idle speed to idle specification if needed.

Pull the recoil starter grip (A) slowly to engage the starter, then give a short, quick pull.

Press in the starter button (B) to the "Running" (Engine idle speed) position. If the engine fires,

but does not run continuously, repeat the starting procedure with the starter button to the "Running"

position.

NOTE

Should the engine fail to start, do not try to pull the recoil starter grip too many times with the starter

button to the "Starting" position. This will cause the fuel to flood into the cylinder and make starting

even more difficult. In this case, set the starter button to the "Running" position and repeat the

starting procedure.

After starting, vary the engine speed a few times, to draw out the remaining air from the carburetor.

Warming Up

High-pressure air will come out the

nozzle when the engine speed is not at

idle when carrying the power blower on

your back.

Air Filter Service

Clean the element every 50 hours.

Remove the screw holding the air filter cap (A), and remove the element (B).

Clean the element in a bath of kerosene or high flash-point solvent.

Soak the element in new 2-stroke engine oil, and squeeze it to remove excess oil.

Fit the element into the air cleaner base and reinstall the air filter cap screw firmly.

NOTE

Operating dusty condition may require more frequent maintenance than above.

Maintenance and Adjustment

Periodic Maintenance Chart

Sperage

Blower to be stored 30 days should be completely drained of fuel to prevent gum deposits forming

on essential carburetor parts, fuel filter, and fuel tank.

Clean the engine and the machine.

Remove all the fuel from the fuel tank and run the engine at idle to use up the fuel in the

carburetor.

Remove the spark plug, pour in 0.5 ml of new 2-stroke engine oil through the plug hole (H), pull the

recoil starter several times, and reinstall the spark plug.

Slowly pull the recoil starter grip until you feel resistance. This brings the piston onto the

compression stroke, closing both intake and exhaust ports by the piston.

Store the blower in a clean and dry place.

Lubricator

Fuel Filter Service

Clean the fuel filter element every 20 hours.

Take out the fuel filter (A) out of the fuel tank (B), and then remove the fuel filter assembly (C) from

the fuel tube (D) to keep dust from entering into the fuel filter.

Clean the fuel filter assembly in a bath of high flash-point solvent.

Dry the fuel filter assembly before installing.

NOTE

If fuel does not flow better with the fuel filter cleaned, replace the fuel filter assembly with a new

one.

Spark Plug Service

Clean or replace spark plug and reset gap (E) every 50 hours of operation.

Disconnect the spark plug cap from the spark plug and remove the spark plug.

Clean the electrodes (F) by scraping or with a wire brush to remove carbon deposits and wetness.

Inspect for cracked porcelain or other wear and damage. Replace the spark plug if necessary.

Check the spark plug gap and reset it if necessary. The gap must be between 0.6 mm (0.024 in)

and 0.7 mm (0.028 in). To change the gap, bend only side-electrode, using a spark plug tool.

Install and tighten the spark plug to 12 17 N m (1.2 1.7 kg m), then connect the spark plug

cap.

RECOMMENDED SPARK PLUG: NGK BPMR6A

Spark Arrester Cleaning Service

Clean spark arrester every 50 hours.

Remove the engine cover and the muffler by unscrewing the screws from the engine.

Take out the spark arrester (G) from the muffler, and then clean by brushing it.

Reinstall the spark arrester, muffler, and engine cover onto the engine firmly.

Troubleshooting Guide

Environmental Protection

-MEMO-

Kawasaki KRB300A Owner's manual

Kawasaki KRB300A Owner's manual

Kawasaki KRB300A Owner's manual

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