Echo PB-1000 User manual

1
P OWER B LOWER
O PERATOR ' S M ANUAL
Power Blower
Operator'sManual
MODEL PB-1000
Serial Number 001001 & Up
WARNING DANGER
Readrulesforsafeoperationandallinstructionscarefully. ECHOprovidesthisOperator's
Manualwhichmustbereadandunderstoodforproperandsafeoperation.
X7501134700 99922202616
01/95

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.
TABLE OF CONTENTS
Introduction ...............................................................2
- The Operator's Manual........................................2
Manual Safety Symbols and Important Information ..3
Safety ........................................................................3
- Decals..................................................................3
- Equipment ...........................................................4
- Fuel......................................................................4
- Personal Condition and Safety Equipment ..........5
- Safe Operation .....................................................6
- ExtendedOperation/ExtremeConditions .............8
Description ................................................................9
Specifications........................................................... 11
Assembly ................................................................. 11
- InstallBlowerPipes ........................................... 11
Pre-Operation ........................................................... 12
- Fuel.................................................................... 12
Operation ................................................................. 13
- Starting ColdEngine ......................................... 13
- Starting WarmEngine ....................................... 14
- Stopping Engine ................................................ 14
- OperatingBlower............................................... 15
Maintenance ............................................................ 16
- SkillLevels ........................................................ 16
- Maintenance Intervals ...................................... 16
- AirFilter ............................................................ 17
- FuelFilter........................................................... 17
- Spark Plug ......................................................... 18
- Cooling System ................................................. 18
- Exhaust System ................................................. 19
- Carburetor Adjustment...................................... 20
Troubleshooting ...................................................... 21
Storage ..................................................................... 22
ServicingInformation............................................... 24
- Parts.................................................................. 24
- Service .............................................................. 24
- ECHOConsumer ProductSupport.................... 24
- Warranty Registration ...................................... 24
- Additional or Replacement Manuals ................ 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.
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
SAFETYmessages.
THE OPERATOR'SMANUAL --
contains specifications and information for operation, starting, stop-
ping, maintenance, storage and assembly specific to this product.
CopyRight© 2001 By Echo, Incorporated
All Rights Reserved.

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P OWER B LOWER
O PERATOR ' S M ANUAL
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
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.
SAFETY
DECALS
Locate these safety decals on your unit. The illustration shows their
location. 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
canbeorderedfromyourECHOdealer. SeePARTSORDERING
instructionsfor specificinformation.
IMPORTANT
NOTE
IMPORTANT Theenclosedmessage
provides information necessary for the
protection of the unit.
ENGLISH TRANSLATION
WARNING
DANGER
Thisunit canbe
dangerousandcause
seriousinjuryif
improperlyused. To
reduceinjuryrisk to
operator,helpersand
bystanders,readand
understandthe
Operator's Manual,
which is providedin
Spanish.
Esta unidad puede ser
peligrosay producir
lesiones personales
graves si no se usa
enformaadecuada.
Para reducir el riesgo
delesionarse, los
operadores, los
ayudantes y los
espectadoresdeben
leer y comprender el
Manual Del Operador
que se entrega
escrito en español.
PELIGRO
ADVERTENCIA
SPANISH DECAL
HOTDECAL
This symbol accompanied by the words WARNINGand
DANGER calls attention to an act or condition that can
lead to serious personal injury to operator and bystand-
ers.
The circle with the slash symbol means whatever is
shown within the circle is prohibited.
NOTE This enclosed message provides
tips for use, care and maintenance of the
unit.

4
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.
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.(RefertoExhaustSystemMaintenancepg.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
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling, otherwise serious personal injury may result.
• Use an approved fuel container.
• DONOTsmokenearfuel.
• DONOTallowflamesorsparksnearfuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowlyallowing pressureto equalize.
• NEVERrefuelaunitwhentheengineisHOT!
• NEVERrefuelaunitwiththeenginerunning.
• DONOT 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.
IMPORTANT
Spilled fuel is a leading cause of hydrocarbon emissions. Some
states may require the use of automatic fuel shut-off containers
to reduce fuel spillage. Contact your ECHO dealer for ordering
information.
ATTACHMENTS
AND
ACCESSORIES

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P OWER B LOWER
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3 m
10ft. MINIMUM
PERSONAL CONDITION AND SAFETY EQUIPMENT
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 handle. Gloves also reduce the transmission of machine
vibration to your hands.
Breathing Protection --
Wear a face mask to protect against dust.
Hearing Protection --
ECHO recommends wearing hearing protection whenever unit is used.
After Refueling;
• Wipe any spilled fuel from the unit.
• Move at least 3 m (10 ft.) from refueling location before starting.
After Use;
• DO NOT store a unit with fuel in its tank. Leaks can occur. Return
unused fuel to an approved fuel storage container.
WARNING DANGER
Power Blower users risk injury to themselves and others if the power blower is used improperly and or safety
precautions are not followed. Proper clothing and safety gear must be worn when operating a blower.

6
Proper Clothing --
Wear snug fitting, durable clothing;
• Pants should have long legs, shirts with long sleeves.
• DONOTWEARSHORTS,
• DONOTWEARTIES,SCARVES,JEWELRY.
Wear sturdy work shoes with nonskid soles;
• DONOTWEAROPENTOEDSHOES,
• DONOTOPERATEUNITBAREFOOTED.
Keep long hair away from engine and blower intake. Retain hair with cap
or net.
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
• 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
animalspreventedfrom coming nearerthan15m(50ft.)whilethe
blower is in use.
• Take wind conditions into account: avoid open doors and windows.
• Provide all operators of this equipment with the Operator's Manual
and instructions for safe operation.
• Do not point blower at people or animals.
WARNING DANGER
Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions and can cause
serious injury or death.
15 m
(50 ft.)

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P OWER B LOWER
O PERATOR ' S M ANUAL
UseProperClothing&Equipment
• Before starting the unit, equip yourself and any other person working
within the 15 m (50 ft.) Safety Zone with the required Protective
Equipment and clothing.
• Keep long hair away from engine and blower intake. Retain hair with
cap or net.
• Start unit on ground with throttle at idle. Check that blower pipe is
not blocked by the ground or by any objects.
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 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 muffler and surrounding cover may become
extremely hot. Avoid contact during and immediately after operation.
Always keep exhaust area clear of flammable debris. Allow the engine
and muffler to completely cool before performing any maintenance
activity.

8
EXTENDEDOPERATION/EXTREMECONDITIONS
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
recommendedbecausethe minimum exposure which mighttriggerthe
ailmentisunknown.
• Keep your body warm, especially the head, neck, feet, ankles, hands
and wrists.
• Maintain good blood circulation by performing vigorous arm exer-
cises 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).AnextremeRSIconditionisCarpalTunnelSyndrome
(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 & force in 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.

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P OWER B LOWER
O PERATOR ' S M ANUAL
DESCRIPTION
CONTENTS
1-Power Head
1-StraightPipe
1-PipeswithNozzle
1 - Operator's Manual
1 - Warranty Registration Card
1 - T-Wrench

10
1. SPARKPLUG- Providessparktoignitefuelmixture.
2. IGNITIONSWITCH- "TOGGLESWITCH"mountedonsideofhandle. Moveswitchuptostartandrun.Move
downtostop.
3. MUFFLER/SPARKARRESTOR- Thesparkarrestormufflercontrolstheexhaustnoisewhilethesparkarrestor
prevents hot, glowing particles of carbon from leaving the muffler.
4. FUELTANKCAP- Coversandsealsfueltank.
5. CHOKELEVER- Lever is located on right side of the air cleaner. Move leverDOWN to close choke (starting
position) and for emergency stopping. Move UP to open choke (run position).
6. AIRCLEANER- Containsreplaceablefeltelement.
7. THROTTLEPOSITIONKNOB-Squeezethrottletriggerandturnknobcounterclockwisetoholdthrottletrigger
open. Squeeze throttle trigger again to return to idle speed.
8. THROTTLETRIGGER- Springloaded to return to idle when released ifthrottlepositionknobisnotengaged.
9. BLOWERPIPES- Twistlockdesign.
10. STARTERHANDLE - Pull handle slowlyuntil starter engages, then return handle slowly. DO NOTlet handle snap
back or damage to unit will occur.
11. PRIMERBULB-Pumpingprimerbulbbefore startingenginedrawsfreshfuel fromthefueltank primingthecarbure-
tor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an
additional4or 5 times.

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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.
3. Repeat instructions to install cuvred pipe to straight pipe.
SPECIFICATIONS
325mm (12.8in.) w/oblower pipe
220 mm (8.7 in.)
330 mm (13.0 in.)
3.3 kg (7.3 lb.)
Air-cooled,two-stroke,singlecylindergasolineengine
32.2mm (1.268 in.)
26.0mm (1.024 in.)
21.2 cc (1.29 cu. in.)
*Sparkarrestormuffler
ZAMAdiaphragmmodelC1Uw/purge
NGKBPM-7A0.65mm(0.026in.)
Mixed(gasolineandoil)
50:1
89 octane unleaded. Do not use fuel containing
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE.
50:1ECHOHighPerformance2-strokeengineoil
0.5 lit. (17 U.S. fl. oz.)
AutomaticrewindstarterCentrifugaltype
Length
Width
Height
Type
Bore
Stroke
Displacement
Spark Plug
Fuel
Fuel/OilRatio
Gasoline
Oil
FuelTankCapacity
Dimensions
Weightw/pipes(dry)
Engine
Exhaust System
Carburetor
IgnitionSystem
Fuel System
Starter System

12
PRE-OPERATION
FUEL
Fuel Requirements --
Gasoline - Use 89 Octane [ ] (mid grade or higher) gasoline known
to be good quality. Gasoline may contain up to 15% MTBE (methyl
tertiary-butylether). Gasoholcontaining methyl(wood) alcoholisNOT
approved.
TwoStrokeOil-Atwo-strokeengineoilmeetingISO-L-EGD(ISO/CD
13738)andJ.A.S.O.FCStandards,mustbeused.EchobrandPremium
50:1 oil meets these standards. Engine problems due to inadequate
lubricationcausedby failure to use an ISO-L-EGDandJ.A.S.O. FC
certifiedoil,suchasEchoPremium50:1Two-strokeOil,willvoidthe
two-stroke engine warranty.
IMPORTANT
EchoPremium2-StrokeOilmaybemixedat50:1ratioforapplica-
tion in all Echo engines sold in the past regardless of ratio
specified in those manuals.
Mixing Instructions
1. Fill an approved fuel container with half of the required amount of
gasoline.
2. Add 2-stroke oil to gasoline.
3. Close container and shake to mix oil with gasoline.
4. Addremaininggasolineandremix.
5. Install fuel container cap and wipe any spilled fuel from container
and surrounding area.
Handling Fuel
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling or serious personal injury may result.
• Use an approved fuel container.
• DONOTsmokenearfuel.
• DONOTallowflamesorsparksnearfuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel
caps slowly allowing pressure to equalize.
• NEVERrefuelaunitwhentheengineisHOT!
• NEVERrefuelaunitwiththeenginerunning.
• DONOTfillfueltanksindoors.ALWAYSfillfueltanks
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.
IMPORTANT
Spilled fuel is a leading cause of hydrocarbon emissions. Some
states may require the use of automatic fuel shut-off containers
to reduce fuel spillage. Contact your ECHO dealer for ordering
information.
R + M
2

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P OWER B LOWER
O PERATOR ' S M ANUAL
After Refueling -
• 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.
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.
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.
• Check unit for loose nuts, bolts and screws daily.
• Recoil starter: Use short pulls - only 1/2-2/3 of rope length for
starting. Do not allow the rope to snap back in. Always hold the unit
firmly.
STARTING COLD ENGINE
1. Move ignition switch (A) to START/RUN position.
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
3 m
10ft. MINIMUM
A

14
2. Pumpprimer bulb (B)until fuel is visible and flows freelyin the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
3. Close choke (C) (move choke lever up) and pull starter handle (D)
untilengine fires.
4. Open choke (C) and if necessary, restart engine. allow engine to
warm up at idle for several minutes.
NOTE
If engine does not start after 4 pulls, repeat instructions.
STARTING WARM ENGINE
1. Move ignition switch (A) to start, pull starter handle (D) and engine
should start. Do not use choke (C).
NOTE
If engine does not start after 4 pulls, use cold start procedures.
STOPPING ENGINE
1. Release throttle trigger (E) and allow engine to run at idle for a few
minutes.
2. Move ignition switch (A) to "STOP" position.
WARNING DANGER
If engine does not stop, shift choke lever to closed position.
Check and repair ignition switch before starting engine again or
serious personal injury may result.
B
C
D
A
C
D
A
E

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O PERATOR ' S M ANUAL
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
blowerpipe.
1. Use only during appropriate hours.
2. Make sure all pipes are installed.
3. Allow the engine to warm up at a fast idle for a few minutes.
4. Set engine speed with throttle position knob (F).
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.
F

16
MAINTENANCE
WARNING DANGER
Do not perform maintenance on engine or muffler until engine and muffler are completely cool, otherwise serious
personal injury may result.
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 task is not listed, see your ECHO Dealer for repairs.
SKILL LEVEL
Level1= Easy to do. Most required tools come with unit.
Level2= Moderate difficulty. Some specialized tools may be required.
Level3= Experience required. Specialized tools are required. Echo recommends the unit be returned to your Echo
Dealerforservicing.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Just below each task
heading are listed the various part numbers required for that task. See your ECHO dealer for these parts.
IMPORTANT
Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance.
*Record dates of monthly and yearly inspections.
(1) Replacement will be required for Commercial use after 600 hours. For Consumer use, cleaning every 6 months is
required. Cleaning includes Rebuild Kits.
Component/System
AirFilter
FuelStrainer
FuelLine
Carburetor
ChokeSystem
CoolingSystem
MufflerSparkArrestor
VacuumBag
StarterRope
FuelLeaks
SparkPlug
IgnitionSystem
Screw/Bolts/Nuts
Maintenance
Procedure
Clean
Replace
Clean/Replace
Inspect
Inspect/Rebuild
Replace
Inspect/Clean/Replace
Inspect
Clean
Inspect
Clean
Inspect/Replace
Inspect/Clean
Inspect
Repair
Clean
Replace
Clean/Replace
Inspect/Tighten/Replace
•
•
•
•
•
•
•
•
No Maintenance required for coil and flywheel
Every
Refuel
Before
Use
•
•
•
•
Daily or Every
4 hours
•
•
•
•
•
•
Three
Months
or100
hours
•
•
Six
Months
or300
hours
Yearlyor
600hours
• (1)
*DateMain-
tenance
Performed
MAINTENANCE INTERVALS

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AIR FILTER
Level1.
Toolsrequired: Cleaningbrush,25or 50 mm (1 or 2in.)mediumbristle
paint brush.
Partsrequired: AirFilterP/N13031004560
NOTE
Cleandaily.
1. Close choke, remove wing nut, air cleaner cover and air filter.
2. Brush dust off filter.
3. Be sure filter still fits the cavity in the air cleaner cover.
FUEL FILTER
Level1.
Toolsrequired: Fuellinehook.203-254mm(8-10in.)lengthofwirewith
one end bent into a hook. Clean cloth, funnel, and an approved fuel
container.
Partsrequired: FuelFilterP/N13120507320
NOTE
Checkfuelstrainerperiodically.
IMPORTANT
Keep fuel tank clean - do not allow dirt or debris to enter fuel
tank.
NOTE
A clogged fuel strainer will cause hard starting or poor engine
performance.
1. Pick up the fuel filter through fuel tank opening with a piece of
steelwire.
2. Removeoldfilter.
3. Installnewfilter.

18
SPARK PLUG
Level1.
Tools required: 3/4 in. Spark Plug deep socket, Feeler gauge (preferably
awiregauge),
PartsRequired: SparkPlug,NGKBPM-7AP/N15901010630
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.Remainingsandwilldamageengine.
3. Adjust spark plug gap by bending outer electrode.
4. Tightensparkplugto145-155kg/cm(125-135in.lb.).
COOLING SYSTEMS CLEANING
Level2.
Tools required: 25 - 50 mm (1 - 2 in.) medium bristle paint brush, Cross
HeadScrewdriver,PointedWood Stick.
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 above the fuel
tank.
0.65 mm
(0.026 in.)

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P OWER B LOWER
O PERATOR ' S M ANUAL
Cleaning Cylinder Fins
1. Removespark plug.
2. Remove engine cover (seven screws) and clean cylinder fins to
allow cooling air to pass freely.
EXHAUST SYSTEM
Spark Arrestor Screen
Level2.
Tools Required: Cross Head Screwdriver. Scrench. 3 mm Allen wrench,
4mmAllenwrench.
PartsRequired: Spark arrestorscreenP/N 14586240630,gasketP/N
14586642031.
IMPORTANT
Carbon deposits in cylinder exhaust port and muffler will cause a
drop in engine output and overheating. Muffler exhaust port and
spark arrestor screen must be checked periodically.
1. Remove spark plug, recoil starter and engine cover (six screws).
2. Remove spark arrestor cover (A), gasket (B) and spark arrestor
screen(C) from muffler. Replacescreen if pluggedwith carbon
deposits.
3. Install spark arrestor screen, gasket, diffuser and cover.
4. Be sure gasket seals muffler spark arrestor screen to muffler. A
B
C

20
ADJUSTING CARBURETOR - GENERAL
Level2.
Tools required: Screwdriver, tachometer.
Parts required: none.
NOTE
Do not adjust carburetor unless necessary. If you have difficultly,
seeyourECHOdealer.
AdjustmentScrews
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
BeforeAdjustment
Checkthat:
- Air filter is clean and properly installed.
- Spark arrestor screen and exhaust port are free of carbon
- Blowerpipesareinstalled
InitialAdjustment
NOTE
The needle screws have a sharp point. To avoid carburetor damage,
do not use excessive force when seating needle in body.
1. Turn HI and LO adjustment screws (C) and (B) clockwise until
seated lightly in carburetor body.
2. Turn (B) adjustment screw counter clockwise 1-1/8 turn.
3. Start engine and allow it to run at high idle until warn (approx. 2-3
minutes).
NOTE
Idle speed screw may have to be readjusted to keep engine from
stalling.
InitialAdjustment
1. Slowly turn the (LO) adjustment screw (B) clockwise and note the
position when the engine speed drops.
2. Turn the (LO) adjustment screw (B) counter clockwise and note the
position when engine speed drops.
3. Set the screw midway between these points.
C
A
B