Echo 1E PB-24LN User manual

1
POWER BLOWER
OPERATOR'SMANUAL
POWER BLOWER
Operator'sManual
MODEL Type 1E PB-24LN
Serial Number 001001 & Up
WARNING DANGER
Read rules for safe operation and all instructions carefully. ECHO provides this Operator's Manual
which must be read and understood for proper and safe operation.
X750000490
05/99
X7501136001
WARNING
The engine exhaust from this
product contains chemicals known
to the State of California to cause
cancer, birth defects or other
reproductive harm.

2
WARNING DANGER
Read rules for safe operation and instructions carefully. ECHO provides this Operator's Manual which must be read
and understood for proper and safe operation.
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job-
dependability. Read and understand this manual. You will find it easy to use and full of helpful operating tips and
SAFETY messages.
THE OPERATOR'SMANUAL --
contains specifications and information for operation, starting, stop-
ping, maintenance, storage and assembly specific to this product.
TABLE OF CONTENTS
Introduction ............................................................... 2
- The Operator's Manual ................................... 2
Manual Safety Symbols & Important Information ..... 3
Safety ........................................................................ 3
- General Description ......................................... 3
- Decals ............................................................. 4
- International Symbols..........................................4
- Equipment ....................................................... 5
- Fuel ................................................................. 5
- Personal Condition and Safety Equipment ...... 6
- Safe Operation ................................................. 7
- Extended Operation/Extreme Conditions ......... 8
Description ................................................................ 9
- Emission Control ............................................. 9
- Contents.......................................................... 9
Specifications ........................................................... 11
Assembly ................................................................. 11
- Install Blower Pipes ....................................... 11
Pre-Operation ........................................................... 12
- Fuel ............................................................... 12
Operation ................................................................. 13
- Starting Cold Engine ..................................... 13
- Starting Warm Engine ................................... 14
- Stopping Engine ............................................ 14
- Operating Blower .......................................... 15
Maintenance ............................................................ 16
- Skill Levels .................................................... 16
- Maintenance Intervals .................................. 16
- Air filter ......................................................... 17
- Fuel Filter ...................................................... 17
- Spark Plug ..................................................... 18
- Cooling System ............................................. 18
- Exhaust System ............................................. 19
- Carburetor Adjustment ................................. 19
Troubleshooting ...................................................... 21
Storage ..................................................................... 22
Servicing Information ............................................... 24
- Parts .............................................................. 24
- Service ........................................................... 24
- ECHO Consumer Product Support ................ 24
- Warranty Card ............................................... 24
- Additional or Replacement Manuals ............. 24
- Manual Ordering Instructions ....................... 24
Specifications, descriptions and illustrative material in this
literature are as accurate as known at the time of publica-
tion, but are subject to change without notice. Illustrations
may include optional equipment and accessories, and may
not include all standard equipment.

3
POWER BLOWER
OPERATOR'SMANUAL
MANUAL SAFETY SYMBOLS &IMPORTANT INFORMATION
IMPORTANT
NOTE
Throughout this manual and on the product itself, you will find safety
alerts and helpful, information messages preceded by symbols or key
words. The following is an explanation of those symbols and key
words and what they mean to you.
This symbol accompanied by the words WARNING and
DANGER calls attention to an act or condition that can lead
to serious personal injury to operator and bystanders.
The circle with the slash symbol means whatever is shown
within the circle is prohibited.
IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.
NOTE This enclosed message provides tips for
use, care and maintenance of the unit.
SAFETY
GENERAL DESCRIPTION
IMPORTANT
See Description and Specification sections for full description and illustration of power head, and blower assembly.
HANDLE
STOP
SWITCH
BLOWER
PIPES
MUFFLER
RECOIL
STARTER
HANDLE
AIRFILTER

4
HOT DECAL
GENERALWARNING
DECAL
HOT
DECAL
DECALS
Locate these safety decals on your unit. The complete unit illustration,
found in the "DESCRIPTION" section, will help you locate them. Make
sure the decals are legible and that you understand and follow the
instructions on them. If a decal cannot be read, a new one can be
ordered from your ECHO dealer. See PARTS ORDERING instructions
for specific information.
-DANGER- WARNING
DANGER
ENGLISHTRANSLATION
This unit can be
dangerous and cause
serious injury if
improperly used. To
reduce injury risk to
operator, helpers and
bystanders, read and
understand the
Operator's Manual,
which is provided in
Spanish.
Esta unidad puede ser
peligrosa y producir
lesiones personales
graves si no se usa
en forma adecuada.
Para reducir el riesgo
delesionarse, los
operadores, los
ayudantes y los
espectadores deben
leer y comprender el
Manual Del Operador
que se entrega
escrito en español.
PELIGRO
ADVERTENCIA
SPANISHDECAL
Read and follow all safety
precautions in the operator's
manual. Operators, helpers &
bystanders can be severely
injured by blown objects and
mustwearspecifiedANSIZ87.1
eye protection. Always wear
hearing protection when
operating.
-WARNING-
GENERALWARNINGDECAL
INTERNATIONAL SYMBOLS
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Hot
Surface
Carburetor adjustment
- Idle speed
Carburetor adjustment
- High speed mixture
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
"WARNING, SEE
OPERATOR'S
MANUAL
Wear eyes, ears and
head protection
Emergency stop
Fuel and oil mixture
Finger Severing Carburetor adjustment
- Low speed mixture
Primer Bulb
Ignition
ON/OFF

5
POWER BLOWER
OPERATOR'SMANUAL
EQUIPMENT
Before operation a complete check of the unit must be performed:
- Check unit for loose/missing nuts, bolts and screws. Tighten
and/or replace as needed.
- Inspect fuel lines, tank and area around carburetor for fuel leaks. DO
NOT operate unit if leaks are found.
- Only use attachments and accessories specified by Echo for this unit.
Spark Arrestor Muffler
- The spark arrestor muffler controls the exhaust noise and prevents
hot, glowing particles of carbon from leaving the muffler. Make sure
the spark arrestor screen is in good repair and properly seated in the
muffler. (Refer to Exhaust System Maintenance pg. 19.)
Parts
- Do not use blower if any part is missing or damaged.
- Have repairs done only by an authorized ECHO Service dealer.
- Do not use any attachment, accessory or replacement part unless it is
recommended in this Operator's Manual.
FUEL
WARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling or serious personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel
caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT!
• NEVER refuel a unit with the engine running.
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors
over bare ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
AfterRefueling;
- Wipe any spilled fuel from the unit.
- Move at least 3 M (10 ft.) from refueling location before starting.
Afteruse;
-DO NOT store a unit with fuel in its tank. Leaks can occur.
Return unused fuel to an approved fuel storage container.
ATTACHMENTS
AND
ACCESSORIES
3 m (10 ft.)

6
PERSONAL CONDITION AND SAFETY EQUIPMENT
WARNING DANGER
Power Blower users risk injury to themselves and others if the power blower is used improperly and or safety precau-
tions are not followed. Proper clothing and safety gear must be worn when operating a blower.
Physical Condition
Your judgment and physical dexterity may not be good:
• if you are tired or sick,
• if you are taking medication,
• if you have taken alcohol or drugs.
Operate unit only if you are physically and mentally well.
Eye Protection
Wear eye protection that meets ANSI Z87.1 or CE requirements
whenever you operate the blower.
Hand Protection
Wear no-slip, heavy duty work gloves to improve your grip on the
Blower handles. Gloves also reduce the transmission of machine
vibration to your hands.
Breathing Protection --
Wear a face mask to protect against breathing dust.
Hearing Protection
ECHO recommends wearing hearing protection whenever unit is used.
Proper Clothing --
Wear snug fitting, durable clothing;
- Pants should have long legs, shirts with long sleeves.
- DO NOT WEAR SHORTS,
- DO NOT WEAR TIES, SCARVES, JEWELRY.
Wear sturdy work shoes with nonskid soles;
- DO NOT WEAR OPEN TOED SHOES,
- DO NOT OPERATE UNIT BAREFOOTED.

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POWER BLOWER
OPERATOR'SMANUAL
15M (50 ft.)
Hot Humid Weather --
Heavy protective clothing can increase operator fatigue which may lead
to heat stroke. Schedule heavy work for early morning or late afternoon
hours when temperatures are cooler.
SAFE OPERATION
Determine Operation Area --
- Provide all operators of this equipment with the Operator's Manual,
and instructions for safe operation.
- Review area to be cleared. Look for potential hazards such as stones
or metal objects.
- Spectators and fellow workers must be warned, and children and
animals prevented from coming nearer than 15M (50 ft.) while the
blower is in use.
- Do not operate this product indoors or in inadequately ventilated
areas.
- Take wind conditions into account: avoid open doors and windows.
- Start unit on ground with throttle at idle. Check that blower pipe is
not blocked by the ground or by any objects.
- Do not point blower at people or animals.
UseProperClothing&Equipment
- Before starting the unit, equip yourself and any other person working
within the 15M (50 ft.) Safety Zone with the required Protective
Equipment and clothing.
KeepAFirmGrip
- Hold handle with fingers together encircling the handle.
KeepASolidStance
- Maintain footing and balance at all times. Do not stand on slippery,
uneven or unstable surfaces. Do not work in odd positions or on
ladders. Do not overreach.
- Do not perform Maintenance or Assembly procedures with engine
running.
NoiseControl
- Follow local noise regulations on sound levels and hours of opera-
tions. Use only during appropriate hours.
- Never use a higher speed setting then necessary to perform a task.
The higher the engine speed the louder the blower noise.
- Be a good neighbor.
AvoidHotSurfaces
- During operation, the exhaust area may become very hot, too hot to
touch. Avoid contact during and immediately after operation.

8
EXTENDED OPERATION/EXTREME CONDITIONS
Vibration and Cold
It is believed that a condition called Raynaud’s Phenomenon, which
affects the fingers of certain individuals may be brought about by
exposure to vibration and cold. Exposure to vibration and cold may
cause tingling and burning sensations followed by loss of color and
numbness in the fingers. The following precautions are strongly
recommended because the minimum exposure which might trigger the
ailment is unknown.
• Keep your body warm, especially the head, neck, feet, ankles,
hands and wrists.
• Maintain good blood circulation by performing vigorous arm
exercises during frequent work breaks and also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where
operating the blower or other hand-held power equipment is not
required.
• If you experience discomfort, redness and swelling of the fingers
followed by whitening and loss of feeling, consult your physician
before further exposing yourself to cold and vibration.
Repetitive Stress Injuries
It is believed that overusing the muscles and tendons of the fingers,
hands, arms and shoulders may cause soreness, swelling, numbness,
weakness and extreme pain in those areas. Certain repetitive hand
activities may put you at a high risk for developing a Repetitive Stress
Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome
(CTS), which could occur when your wrist swells and squeezes a vital
nerve that runs through the area. Some believe that prolonged exposure
to vibration may contribute to CTS. CTS can cause severe pain for
months or even years. To reduce the risk of RSI/CTS, do the following:
• Avoid using your wrist in a bent, extended or twisted position.
Instead try to maintain a straight wrist position. Also, when grasping,
use your whole hand, not just the thumb and index finger.
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force with which you do the repetitive
movement.
• Do exercises to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if
you feel tingling, numbness or pain in the fingers, hands, wrists or
arms. The sooner RSI/CTS is diagnosed, the more likely permanent
nerve and muscle damage can be prevented.

9
POWER BLOWER
OPERATOR'SMANUAL
DESCRIPTION
After opening the carton, check for damage. Immediately notify your retailer
or ECHO Dealer of damaged or missing parts. Use the contents list to check
for missing parts.
EMISSION CONTROL
The emission control system for this engine is EM (Engine Modification).
EmissionControlLabellocated on the engine. ( EXAMPLE ONLY,
information on label varies by engine FAMILY).
CONTENTS
1- Power Head
1- Blower Pipe Assembly
1- Plastic Bag
1- Operator's Manual
1- Warranty Registration Card
1- ECHO Emissions and Warranty Statement
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY : TEH0240824RC
DISPLACEMENT : 23.6cc
THIS ENGINE MEETS U.S. EPA PHI AND 1995 -
1999 CALIFORNIA EMISSION REGULATIONS FOR
ULGE ENGINES. REFER TO OWNER’S MANUAL
FOR MAINTENANCE SPECIFICATIONS AND
ADJUSTMENTS.
Important:This Spark Ignition System complies with Canadian ICES-002

10
1. STOPSWITCH -"SLIDE SWITCH" mounted on top of handle. Push forwardto start and run. Slide back to
stop.
2. BLOWERPIPES-Twist lock design.
3. MUFFLER/SPARKARRESTOR-The spark arrestor muffler controls the exhaust noise while the spark arrestor
prevents hot, glowing particles of carbon from leaving the muffler where they could possibly start a fire.
4. RECOILSTARTERHANDLE-Pull handle slowly until recoil starter engages, then quickly and firmly. When
engine starts return handle slowly. DO NOT let handle snap back or damage to unit will occur.
5. FUELTANKCAP- Covers and seals fuel tank.
6. PRIMERBULB-Pumping primer bulb before starting engine draws fresh fuel from fuel tank priming the carburetor
for starting. Pump the bulb 10 times until fuel is visible in clear fuel return line.
7. CHOKE - Lever is located on right side of the air filter case. Move lever DOWN to close choke (starting position)
and for emergency stopping. Move up to open choke (run position).
8. AIRCLEANER-Contains replaceable filter element.
9. SPARKPLUG- Provides spark to ignite fuel mixture.
10. THROTTLEPOSITIONLEVER-Pull back to increase engine speed. Friction washers maintain throttle lever
setting.
11. THROTTLETRIGGER-Spring loaded to return to idle when released. During acceleration, press trigger gradually
for best operating technique.

11
POWER BLOWER
OPERATOR'SMANUAL
ASSEMBLY
WARNING DANGER
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INSTALL BLOWER PIPES
1. Align grooves in straight pipe with pegs on blower housing and
slide pipe onto housing.
2. Turn straight pipe clockwise to lock it into place.
340mm(13.4in.)w/oblowerpipe
215 mm (8.46 in.)
375mm(14.75 in.)
4.3 kg (9.5 lb.)
Air-cooled,two-stroke,singlecylindergasolineengine
34.0 mm (1.34 in.)
26.0mm(1.024in.)
23.6 cc (1.44 cu. in.)
Sparkarrestormuffler
WALBROdiaphragmmodelWTw/purge
NGKBPM-7YGap0.65mm(0.026in.)s
Mixed(gasolineandoil)
50:1
89octaneunleaded. Do notusefuelcontaining
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE.
50:1ECHOHighPerformance2-strokeengineoil
0.6 lit. (17.75 U.S. fl. oz.)
AutomaticrewindstarterCentrifugaltype
7300RPM
2500-3000RPM
295 cu. ft./min
145MPH
Length
Width
Height
Type
Bore
Stroke
Displacement
SparkPlug
Fuel
Fuel/OilRatio
Gasoline
Oil
FuelTankCapacity
w/pipes
Dimensions
Weightw/pipes(dry)
Engine
Exhaust System
Carburetor
IgnitionSystem
Fuel System
Starter System
WideOpenThrottleSpeed
IdleSpeed
MaxAir Volume
Max Air Speed
SPECIFICATIONS
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication,
but are subject to change without notice. Illustrations may include optional equipment and accessories, and may not
include all standard equipment.

12
3 m (10 ft.)
PRE OPERATION
FUEL
Fuel Requirements
Gasoline - Use 89 Octane [ ] gasoline or gasohol known to be good
quality. Gasohol may contain up to 10% Ethyl (grain) alcohol or 15%
MTBE (methyl tertiary-butyl ether). Gasohol containing methyl (wood)
alcohol is NOT approved.
TwoStrokeOil-A two-stroke engine oil meeting ISO-L-EGD Standard
(ISO/CD 13738), must be used. Echo brand Premium 50:1 oil meets this
standard. Engine problems due to inadequate lubrication caused by
failure to use an ISO-L-EGD approved oil, such as Echo Premium 50:1
Two-stroke Oil, will void the two-stroke engine warranty. (Emission
related parts only are covered for two years, regardless of two-stroke
oil used, per the statement listed in the EPA Phase I/California Emission
Defect Warranty Explanation.)
Mixing- Follow directions on the oil container.
Handling Fuel
WARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling or serious personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel
caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT!
• NEVER refuel a unit with the engine running.
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks
outdoors over bare ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
R + M
2
After Refueling;
- Wipe any spilled fuel from the unit.
- Move at least 3 M (10 ft.) from refueling location before starting
the engine.
After use;
- DO NOT store a unit with fuel in its tank. Leaks can occur.
Return unused fuel to an approved fuel storage container.
Storage
Fuel storage laws vary by locality. Contact your local government for
the laws affecting your area. As a precaution, store fuel in an approved,
air tight container. Store in a well ventilated, unoccupied building, away
from sparks and flames. Do not store fuel longer than 30 days.

13
POWER BLOWER
OPERATOR'SMANUAL
SMTWTF S
1234567
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
IMPORTANT
Stored fuel ages. Do not mix more fuel than you expect to use in
thirty (30) days, ninety (90) days when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS shake fuel con-
tainer thoroughly before each use.
OPERATION
• Provide all operators of this equipment with the Operator's Manual
and instructions for safe operation.
• Before starting the unit, equip yourself and any other person working
within the 15M (50 ft.) Safety Zone with the required Protective
Equipment and clothing.
• Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions which can cause
serious injury or death.
STARTING COLD ENGINE
1. Stop Switch - Start/Run.
Move stop switch button (A) away from the STOP position.
2. Close Choke - Cold Start.
Move choke (B) to "Cold Start" Position.
3. PrimerBulb -Prime.
Pump primer bulb (C) 10 times. Fuel will be visible and flow freely
in the clear fuel tank return line.
IMPORTANT
Recoil starter: Use short pulls - only 1/2-2/3 of rope for starting.
Do not allow the rope to snap back in. Always hold the unit firmly.
4. Lay the blower on a flat clear area. Firmly grasp throttle grip with
left hand and rapidly pull starter handle/rope (D) until engine fires.
5. After engine fires, move choke lever to “Run” position and pull
starter handle/rope (D) until engine starts and runs. Allow unit to
warm up at idle for several minutes.
NOTE
If engine does not start with choke in “Run” position after 4 pulls,
repeat instructions.
6. After engine warm up, gradually depress throttle trigger to
increase engine RPM to operating speed.

14
STARTING WARM ENGINE
1. Stop Switch - Start/Run. Move stop switch button (A) away from
the STOP position.
2. Lay the blower on a flat clear area. Firmly grasp throttle grip with
left hand and rapidly pull recoil starter handle/rope (D) until engine
fires.
IMPORTANT
Recoil starter: Use short pulls - only 1/2-2/3 of rope for starting.
Do not allow the rope to snap back in. Always hold the unit firmly.
NOTE
If engine does not start after 4 pulls, use Cold Start Procedure.
STOPPING ENGINE
1. Release throttle trigger (E) and allow engine to idle for a minute.
2. Move stop switch (A) to "STOP" position.
WARNING DANGER
If engine does not stop when stop switch is moved to STOP
position, close choke - COLD START position - to stall engine.
Have your ECHO dealer repair stop switch before using blower
again.

15
POWER BLOWER
OPERATOR'SMANUAL
OPERATING BLOWER
WARNING DANGER
Always wear safety glasses, hearing protection and a face filter
mask or serious personal injury may result.
Do not point the blower pipe in the direction of people or pets.
Read the Safety Section carefully.
IMPORTANT
To avoid engine damage due to over revving, do not block blower
pipe.
1. Use only during appropriate hours.
2. Allow the engine to warm up at a fast idle for a few minutes.
3. Set engine speed with throttle position knob (F). Rotate lever
forward for lower speed; back for higher speed.
NOTE
The PB-24LN can be run at any speed between 2500 RPM to 7300
RPM once the engine has broken in (approximately after 3 fuel
tanks).
NOTE
Use lower speed to blow dry leaves from a lawn or flower bed.
Additional speed may be necessary to clean grass and leaves from
walks, patios and drives or to move gravel, dirt, snow, bottles or
cans from a driveway, street, parking lot or stadium.
NOTE
Never use a higher speed setting than necessary to perform a task.
Remember, the higher the engine speed, the louder the blower noise.
Minimize dust by using blower at lower speeds. Keep debris on
your property.
Be Smart - be a good neighbor.

16
Component/System
Maintenance
Procedure
Before
Use
Every
Refuel
Daily or
Every 4
Hours
3
Months
or 100
Hours
6 Months
or 300
Hours
Yearly or
600 Hours
Date
Maintenance
Performed
Air Filter
Clean/ Replace
I
I
R
Fuel Strainer
Clean/Replace
I
R
Fuel Line
Inspect
I
I
Carburetor
Inspect/Rebuild
I
R (1)
Choke System
Inspect/Clean/
Replace
I
Cooling System
Inspect/Clean
I
I
Muffler Spark
Arrestor
Inspect/Clean
I
Recoil Starter Rope
Inspect/Clean
I
Fuel Leaks
Inspect/Replace
I
I
Spark Plug
Clean/ Replace
I
R
Ignition System
Clean/Replace
No Maintenace required for coil and flywheel
Screws/Nuts/Bolts
Inspect/Tighten/
Replace
I
I = Inspect / R = Replace
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance.
(1) Replacement will be required for commercial use after 600 hours. For Consumer use, cleaning every 6 months is required.
Cleaning includes Rebuild Kits.
MAINTENANCE
Your ECHO blower is designed to provide many hours of trouble free service. Regular scheduled maintenance will help
your blower achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your
unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the
ECHO Dealer do it, each maintenance task has been graded. If the task is not listed, see your ECHO Dealer for repairs
SKILL LEVELS
Level 1 = Easy to do. Most required tools come with unit.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Level 3 = Experience required. Specialized tools are required.
ECHO offers REPOWER Maintenance Kits and Parts to make your maintenance job easier. Below each task heading are
listed the various part numbers required for that task. See your ECHO dealer for these parts.
MAINTENANCE INTERVALS

17
POWER BLOWER
OPERATOR'SMANUAL
AIR FILTER
Level 1.
Toolsrequired: 25-50mm (1in. or 2in.) medium bristle paint brush.
Partsrequired: 90065 REPOWER AIR & FUEL FILTER KIT.
1. Close choke (Cold Start Position). This prevents dirt from
entering the carburetor throat when the air filter is removed.
Brush accumulated dirt from the air cleaner area.
2. Remove the air cleaner cover. Clean and inspect the element for
damage. If element is fuel soaked and very dirty, replace.
3. If element can be cleaned and reused, be certain it:
• still fits the cavity in the air cleaner cover.
• is installed with the original side out.
NOTE
Carburetor adjustment may be needed after air filter cleaning/
replacement.
FUEL FILTER
Level 1.
Toolsrequired: Fuel line hook. 203-254mm (8in.-10in.) length of wire
with one end bent into a hook. Clean rag, funnel, and an approved fuel
container.
Partsrequired: 90065 REPOWER AIR & FUEL FILTER KIT.
WARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling.
1. Use a clean rag to remove loose dirt from around fuel cap and
empty fuel tank.
2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.
3. Remove the filter from the line and install the new filter.

18
SPARK PLUG
Level 2.
Tools Required: 20mm (3/4in.) Spark Plug deep socket, Feeler gauge,
preferably a wire gauge. Brush.
PartsRequired: Spark Plug, NGK - BPM-7Y P/N 99944500071
1. Remove spark plug and check for fouling, worn and rounded
center electrode.
2. Clean the plug or replace with a new one. DO NOT sand blast to
clean. Remaining sand will damage engine.
3. Adjust spark plug gap by bending outer electrode.
4. Tighten spark plug to 145-155 kg/cm (125-135 in. lb.).
COOLING SYSTEMS CLEANING
Level 3.
Tools required: Cross Head Screwdriver, 3 mm Hex Wrench, Pointed
Wood Stick, 25-50mm (1in.-2in.) medium bristle paint brush.
Parts Required: None if you are careful.
IMPORTANT
To maintain proper engine operating temperatures, cooling air must
pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the
cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is
considered “Normal Maintenance”. Any failure attributed to lack of
maintenance is not warranted.
Cleaning Grill
Remove accumulated debris from crankcase intake grille (A) above the
fuel tank.
Cleaning Cylinder Fins
1. Remove spark plug.
2. Remove engine cover (three screws) and clean cylinder fins to
allow cooling air to pass freely.
0.65 mm
(0.026 in.)

19
POWER BLOWER
OPERATOR'SMANUAL
EXHAUST SYSTEM
Spark Arrestor Screen
Level2.
ToolsRequired: Cross Head Screwdriver. 20mm (3/4in.) spark plug
deep socket. Soft metal brush. Wooden carbon scraper.
PartsRequired: Spark arrestor screen P/N 14586240630,
gasket P/N 14586642031.
1. Remove spark plug and engine cover see "Cooling System
Cleaning " page 18.
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt
from entering cylinder.
3. Remove spark arrestor cover (A), gasket (B), spark arrestor screen
(C) from muffler. Replace screen if plugged with carbon deposits.
4. Install spark arrestor screen, gasket, diffuser and cover.
5. Be sure gasket seals muffler spark arrestor screen to muffler.
6. Install engine cover and spark plug.
ADJUSTING CARBURETOR - GENERAL
Level2.
Toolsrequired:Screwdriver, Tachometer (P/N 99051130017).
Parts required: none.
NOTE
Do not adjust carburetor unless necessary. If you have difficultly,
see your ECHO dealer.
Adjustment Screws
Idle Speed (A) Control throttle opening at idle.
Low (LO) Speed (B) Controls amount of fuel at low speed and
supplementary fuel for smooth progression from
idle to high speed.
Hi (HI) Speed (C) Controls amount of fuel at full throttle
Before Adjustment
Check that:
- Air filter is clean and properly installed.
- Spark arrestor screen and exhaust port are free of carbon
- Blower pipes are installed

20
Initial Adjustment
1. With engine off, turn HI speed screw (C) counterclockwise to
stop.
2. Turn LO speed screw (B) midway between stops.
3. Turn idle screw (A) until tip of screw just touches throttle plate;
then turn three (3) turns clockwise.
Final Adjustment
IMPORTANT
Limiter caps prevent exceeding C.A.R.B. and E.P.A. emission limits
and over rich adjustment, but not over lean adjustment, which can
cause engine failure: Do not exceed recommended HI speed
engine R.P.M. during operation, or for long periods during
adjustment.
1. Start engine, run at idle for one minute.
2. Complete warm up by running at full throttle for 5 minutes,
operating choke twice to clear air from carburetor chambers.
3. Run at idle and accelerate to check for smooth transition from idle
to high speed; if engine hesitates, turn LO speed screw (B)
counterclockwise 1/8th of a turn at a time until acceleration is
smooth.
4. Adjust idle screw (A) to 3000 R.P.M., using tachometer.
C