Echo PB-610 User manual

Power Blower
Operator's Manual
MODEL PB-610
WARNING
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.
X753002791
01/09
X7531122001

2
TABLE OF CONTENTS
Introduction .................................................................. 2
- The Operator's Manual .......................................... 2
Safety ............................................................................ 3
- Manual Safety Symbols and Important Information3
- International Symbols ............................................ 3
- Personal Condition and Safety Equipment ............ 3
- Equipment .............................................................. 6
Emission Control ........................................................... 6
Description ................................................................... 7
Contents ....................................................................... 8
Assembly ...................................................................... 9
- Install Blower Pipes / Stick Handle ........................ 9
Operation .....................................................................10
- Fuel .......................................................................10
- Starting Cold Engine .............................................11
- Starting Warm Engine ...........................................12
- Stopping Engine ...................................................13
- Operating Blower ..................................................13
Maintenance ............................................................ 14
- Skill Levels ........................................................ 14
- Maintenance Intervals ...................................... 14
- Air Filter ............................................................ 15
- Fuel Filter .......................................................... 16
- Spark Plug ......................................................... 16
- Cooling System ................................................. 17
- Exhaust System ................................................. 18
- Carburetor Adjustment ................................... 20
Troubleshooting ..................................................... 22
Storage .................................................................... 23
Specifications......................................................... 24
Servicing Information ............................................ 28
- Parts/Serial number ........................................ 28
- Service ............................................................. 28
- ECHO Consumer Product Support ................. 28
- Warranty Registration ..................................... 28
- Additional or Replacement Manuals .............. 28
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 equip-
ment.
Copyright© 2009 By Echo, Incorporated
All Rights Reserved.
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
Read and understand this manual before operation. Keep it in a safe
place for future reference. It contains specifications and information for
operation, starting, stopping, maintenance, storage, and assembly
specific to this product.

3
POWER BLOWER
OPERATOR'SMANUAL
SAFETY
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
Throughout this manual and on the product itself, you will find safety alerts and helpful, informational messages
preceded by symbols or key words. The following is an explanation of those symbols and key words and what they
mean to you.
INTERNATIONAL SYMBOLS
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Read and understand
Operator's Manual.
Fuel and oil mixture
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Hot
Surface
Carburetor adjustment
- Idle speed
Carburetor adjustment
- High speed mixture
Wear eyes, ears and
head protection
Emergency stop
Finger Severing
Carburetor adjustment
- Low speed mixture
Safety/Alert
Wear hand
protection. Use
two handed.
DO NOT smoke
near fuel.
DO NOT allow
flames or sparks
near fuel.
Wear slip
resistant foot
wear.
Ignition
ON/OFF
Primer bulb
Choke Control
"Cold Start"
Position
(Choke Closed)
Choke Control
"Run"
Position
(Choke Open)
PERSONAL CONDITION AND SAFETY EQUIPMENT
WARNING
Power Blower users risk injury to themselves and others if the power blower is used improperly or safety precau-
tions are not followed. Proper clothing and safety gear must be worn when operating a blower.
WARNING
The safety alert symbol accompanied by the
word “WARNING” calls attention to an act or
condition which CAN lead to serious personal
injury or death if not avoided.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action
shown is prohibited. Ignoring these
prohibitions can result in serious or fatal
injury.
CAUTION
The safety alert symbol accompanied by the
word “CAUTION” calls attention to an act or
condition which may lead to minor or moderate
personal injury if not avoided.
NOTE
This enclosed message provides tips for use, care
and maintenance of the unit.
IMPORTANT
The enclosed message provides information neces-
sary for the protection of the unit.
DANGER
The safety alert symbol accompanied by the
word “DANGER” calls attention to an act or
condition which WILL lead to serious personal
injury or death if not avoided.

4
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 unit.
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 facemask to protect against 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.
• DONOT WEAR SHORTS,
• DONOTWEARTIES, SCARVES, and JEWELRY.
Wear sturdy work shoes with nonskid soles:
• DONOT WEAR OPEN TOED SHOES,
• DONOTOPERATE UNIT BAREFOOTED.
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.
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 recom-
mended, 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 unit 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 physi-
cian before further exposing yourself to cold and vibration.

5
POWER BLOWER
OPERATOR'SMANUAL
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 pre-
vented.
DANGER
Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions and can
cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual
and Safety Manual for instructions on Safe Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children and
animals prevented from coming nearer than 15 m (50 ft.) while the
unit is in use.
• Take wind conditions into account: avoid open doors and
windows.
• Do not point blower at people or animals.
Keep a Firm Grip
• Hold the front and rear handles with both hands, with thumbs
and fingers encircling the handles.
Keep a Solid Stance
• 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 over reach.
Avoid Hot Surfaces
• Keep exhaust area clear of flammable debris. Avoid contact
during and immediately after operation.

6
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: 9EHXS.0585KA DISPLACEMENT: 21.2 CC
EMISSION COMPLIANCE PERIOD : 300 HRS.
THIS ENGINE MEETS U.S. EPA PH2 EXH AND 2007 AND
LATER CALIFORNIA EXH AND EVAP EMISSION REGULA-
TIONS FOR S.O.R.E.. REFER TO OWNER'S MANUAL FOR
MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
EQUIPMENT CHECK
WARNING
Use only ECHO approved attachments. Serious injury may result from the use of a non-approved attachment
combination. ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories
which have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this
manual and safety manual.
• Check unit for loose/missing nuts, bolts and screws. Tighten and/or replace as needed.
• 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.
An Emission Control Label is located on the unit.
(This is an EXAMPLE ONLY, information on label
varies by engine FAMILY).
WARNING
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all
openings.
•ALWAYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop
before removing obstructions, clearing debris, or servicing unit.
•DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit.
•NEVER reach into any opening while the engine is running. Moving parts may not be visible through openings.
EMISSION CONTROL (EXHAUST & EVAPORATIVE)
EPA Phase 2 / C.A.R.B. TIER III
The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel
tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be appli-
cable to California models only.
PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)
The 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine
emissions output meets applicable emissions regulations, provided that approved maintenance procedures are
followed as listed in the Maintenance Section of this manual.
WARNING
Check fuel system for leaks due to fuel tank damage, especially if the unit is dropped. If damage or leaks are
found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an
authorized servicing dealer before using.

7
POWER BLOWER
OPERATOR'SMANUAL
1
2
3
4
5
6
7
8
10
11
12
9
13
14
Hot Decal (near muffler)
General Warning Decal (located on top of blower housing)
P/N X505002310
P/N 89016009461
72 Category III
dB(A)
Measured at 50 ft. (15m) per ANSI B175.2
P/N X508000150
Sound Label (located on blower housing)
DESCRIPTION
Locate these safety decals on your unit. 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 ORDER-
ING instructions for specific information.

8
1. AIR CLEANER - Containsreplaceable air filter element.
2. SPARK PLUG - Provides spark to ignite fuel mixture.
3. SPARKARRESTOR-CATALYTICMUFFLER / MUFFLER -Themufflerorcatalyticmufflercontrols exhaust
noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler.
Keep exhaust area clear of flammable debris.
4. RECOIL STARTER HANDLE - Pull recoil handle slowly until 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. CHOKE - Choke is located on the side of the air cleaner. Move choke lever to "COLD START" ( ) to close choke
for cold starting. Move choke lever to "RUN" ( ) position to open choke.
6. PURGE BULB - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from the
carburetor. Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump purge bulb
an additional 4 or 5 times.
7. FUEL TANK CAP - Covers and seals fuel tank.
8. THROTTLE POSITION LEVER/STOP SWITCH - Combination stop switch and variable speed throttle lever.
When the lever is moved all the way forward the blower is at Wide Open Throttle (W.O.T.). When the lever is
moved rearward to detent, the blower is at idle. When the lever is moved rearward past the idle detent the blower will
stop.
9. BLOWER PIPES - Exclusive positive locking system.
10. SAFETY DECAL - Lists important safety precautions.
11. THROTTLE HANDLE - Rotates downward for throttle control access. Spring loaded for flexible operation.
12. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
13. FLEXIBLE PIPE - Allowsfor full range of movement.
14. STICK HANDLE - Provides comfortable grip for directing air flow.
CONTENTS
1 - Power Head
1 - Flex Pipe
1 - Pipe w/swivel
1 - Straight Pipe
1 - Straight Pipe
1 - Operator's Manual
1 - Warranty Registration Card
1 - ECHO Emissions and Warranty Statement
1 - Plastic Bag
2 - Clamps w/screws
1 - Stick Handle
1 - Bolt 6x45
1 - Washer 6
1 - Wing nut
1 - Bottle Echo Power BlendX TM Universal 2-Stroke Oil

9
POWER BLOWER
OPERATOR'SMANUAL
ASSEMBLY
WARNING
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INSTALL BLOWER PIPES / STICK HANDLE
1. Assemble clamps (A) onto both ends of flexible pipe (B).
2. Assemble swivel pipe (C) into flexible pipe (B) and tighten clamp
(A).
3. Assemble flexible pipe (B) to elbow (D) on blower and tighten
clamp (A).
NOTE
A light lubricant may be used to ease assembly of flexible pipe to
blower elbow.
4. Loosen wing nut (E) completely and open stick handle clamp.
5. Align notches (F) in handle clamp with tabs (G).
6. Slide stick handle onto swivel pipe (C). Stick handle should be
angled away from operator.
7. Position stick handle (H) for comfortable operation, and tighten
wing nut (E).
8. Assemble straight pipe (I) onto swivel pipe (C), until you feel
light resistance. Do not force connection. Hold swivel pipe and
turn straight pipe clockwise, engaging positive locking channels,
until connection is firm. Do not force connection.
9. Assemble straight pipe with decal (J) to straight pipe (I) as in step
8.
NOTE
Blower use will eventually loosen pipe connections. Exclusive
positive locking system allows pipes to be tightened. If loosening
occurs, remove two straight pipes and install according to instruc-
tions 8 & 9.
I
J
C
C
AA
B
B
D
E
G
F
H
G

10
NOTICE: Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor
performance, or severe engine damage and void the product warranty. Read and follow instructions in the Storage
section of this manual.
FUEL
WARNING
Alternative fuels, such as E-20 (20% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements
are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance
problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited
to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets,
carburetors and other engine components.
FuelRequirements
GGasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain
up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood
alcohol) is NOT approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FC/FD Standards must
be used. Echo brand premium Power Blend X TM Universal 2-Stroke Oil meets these standards. Engine problems due
to inadequate lubrication caused by failure to use anSO-L-EGD (ISO/CD 13738) and J.A.S.O. FC/FD certified oil,
such as Echo premium Power Blend X TM, will void the two-stroke engine warranty.
IMPORTANT
Echo premium Power BlendX TM Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo
engines sold in the past regardless of ratio specified in those manuals.
OPERATION
WARNING
Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a
spark arrestor and a spark arrestor may be required. The operator should contact local fire agencies for laws or
regulations relating to fire prevention requirements.
WARNING
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all
openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete
stop before removing obstructions, clearing debris, or servicing unit. Blower housing may contain shredder blades
and other sharp edges that can cause serious injuries if touched, even if engine is off and blades are not moving.
Wear gloves to protect hands from sharp edges and hot surfaces.

11
POWER BLOWER
OPERATOR'SMANUAL
HandlingFuel
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 or RUNNING!
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.
• DO NOT overfill fuel tank. Wipe up spills immediately.
• Securely tighten fuel tank cap and close fuel container after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.
• Move at least 3m (10 ft.) from refueling location before starting the engine.
Mixing Instructions
1. Fill an approved fuel container with half of the required amount of
gasoline.
2. Add the proper amount of 2-stroke oil to gasoline.
3. Close container and shake to mix oil with gasoline.
4.Add remaining gasoline, close fuel container, and remix.
IMPORTANT
Spilled fuel is a leading cause of hydrocarbon emissions. Some
states may require the use of automatic fuel shut-off contain-
ers to reduce fuel spillage.
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, airtight container. Store in a well-ventilated, unoccu-
pied building, away from sparks and flames.
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.
IMPORTANT
Stored two-stroke fuel may separate. ALWAYS shake fuel
container thoroughly before each use.

12
STARTING COLD ENGINE
• 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.
• Rotate throttle handle downward to a comfortable operating position.
1. Throttle Lever
Move throttle lever (A) to "SLOW" (START) position.
2. Choke
Move choke (B) to "Cold Start" ( ) position.
3. Purge Bulb
Pump purge bulb (C) until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
4. Recoil Starter
Pull recoil starter handle (D) and engine should start.
5. Choke
Move choke (B) to run ( ) position and if necessary, restart
engine.
NOTE
If engine does not start after 5 pulls, repeat instructions 2-5.
NOTE
Allow engine to warm up before use.
A
Stop
Slow
Fast
B
C
D

13
POWER BLOWER
OPERATOR'SMANUAL
STARTING WARM ENGINE
The starting procedure is the same as Cold Start except DO NOT close
the choke.
1. Throttle Lever
Move throttle lever (A) to "SLOW" (START) position.
2. Purge Bulb
Pump purge bulb (C) until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
3. Recoil Starter
Pull recoil starter handle (D) and engine should start.
NOTE
If engine does not start after 5 pulls, use cold start procedures.
STOPPING ENGINE
1. Throttle Lever
Move throttle lever (A) to "SLOW" position and allow engine to
return to idle before shutting off engine.
2. Move throttle lever (A) to "STOP" position.
WARNING
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.
D
B
C
A
Stop
Slow
Fast
A
Stop
Slow
Fast

14
3. Set engine speed with throttle lever (A).
4. Use lower speed to blow dry grass and leaves from walks, patios
and drives.
5. Additional speed may be necessary to clean leaves from a lawn or
flower bed.
6. Higher speed may be necessary 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 and by
dampening material with water/mist when necessary. Keep debris
on your property.
Be Smart - be a good neighbor.
OPERATING BLOWER
WARNING
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a
poison gas. Breathing CO can cause unconsciousness, serious
injury, or death. Exhaust can cause serious burns. ALWAYS
position unit so that exhaust is directed away from your face and
body.
WARNING
Always wear safety glasses, hearing protection, a face filter mask,
and take all safety precautions, 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 opening.
1. Use only during appropriate hours.
2. Allow the engine to warm up at a fast idle for a few minutes.
A
Stop
Slow
Fast

15
POWER BLOWER
OPERATOR'SMANUAL
MAINTENANCE
WARNING
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from
all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete
stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing
service. Wear gloves to protect hands from sharp edges and hot surfaces.
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 a task is not listed, see your ECHO Dealer for
repairs.
SKILL LEVELS
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier.
MAINTENANCE INTERVALS
COMPONENT / SYSTEM MAINTENANCE
PROCEDURE
REQ'D
SKILL
LEVEL
DAILY OR
BEFORE USE
EVERY
REFUEL
3 MONTHS
OR 90
HOURS
YEARLY
600 HOURS
Air Filter Inspect/Clean 1I / C * R *
Choke Shutter Inspect/Clean 1I / C
Fuel Filter Inspect/Replace 1I * I / R *
Fuel Cap Gasket Inspect/Replace 1I *
Fuel System Inspect/Replace 1I (1) * I (1) *
Spark Plug Inspect/Clean/Replace 1I / C / R *
Cooling System Inspect/Clean 2I / C
Muffler Spark Arrestor Inspect/Clean/Replace 2I / C / R *
Cylinder Exhaust Port Inspect/Clean/Decarbon 2I / C
Recoil Starter Rope Inspect/Clean 1I / C *
Screws/Nuts/Bolts Inspect/Tighten/Replace 1I *
MAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEAN
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the
frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
(1) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.
* All recommendations to replace are based on the finding of damage or wear during inspection.

16
WARNING
Allow the engine and muffler to completely cool before perform-
ing any maintenance activity.
AIR FILTER
Level 1.
Tools required: 25 - 50mm (1 - 2 in.) cleaning brush
Parts required: Tune Up Kit
NOTE
Always brush dirt and debris away from air cleaner area prior to
cleaning air filter.
1. Brush dirt off air cleaner area. Keep dirt away from engine and air
intake grid.
2. Remove air filter cover. Brush dirt from inside cover and away from
edges of air filter.
3. Check air filter seal for tight fit with air filter case.
4. Remove air filter from case. Use care to prevent dirt and debris
from falling into air filter case.
5. Inspect filter element and seal. Replace filter if any of these
problems are present:
•Air filter seal does not fit tightly against case
•Air filter seal is distorted, worn, or damaged
•Air filter element has holes or other damage
•Air filter element is saturated with dirt
•Air filter element is soaked with fuel mix
6. If air filter is in good condition and can be cleaned and reused,
lightly brush debris from air filter element, or blow filter element
clean using low pressure (40 psi or less) compressed air directed at
inside of filter.
IMPORTANT
When using compressed air, always direct air stream at inside
surface of filter so dust and debris will be blown out of filter. Keep
air nozzle 6 - 8 inches away from filter to prevent damage to filter.
7. Install air filter in case, and replace cover.
NOTICE
Actual replacement interval for air filter depends on operating
conditions. Operation in dustier applications requires more frequent
cleaning and replacement. Continued operation with a damaged or
excessively dirty filter will allow dirt and debris to enter engine, and
result in poor performance, rapid engine wear, and premature engine
failure.

17
POWER BLOWER
OPERATOR'SMANUAL
SPARK PLUG
Level 1.
Tools required: 3/4 in. Spark Plug deep socket, feeler gauge
Parts Required: REPOWERTM Tune Up Kit
IMPORTANT
Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada)
otherwise severe engine damage may occur.
1. Remove spark plug and check for fouling, or 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 150-170 kgf • cm (130-150 in • lbf).
FUEL FILTER
Level 1.
Tools required: 200-250 mm (8 - 10 in.) length of wire with one end
bent into a hook, clean rag, funnel, and an approved
fuel container.
Parts required: REPOWERTM Tune Up Kit
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.
0.65 mm
(0.026 in.)

18
COOLING SYSTEMS CLEANING
Level 2.
Tools required: 25 - 50 mm (1 - 2 in.) Cleaning brush, cross head
screwdriver
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
1. Remove accumulated debris from intake grill (A) between back-
pack frame and blower housing.
Cleaning Cylinder Fins
1. Remove engine cover (five screws), pull cover away from engine.
Clean cylinder fins (B) to allow cooling air to pass freely.
A
B

19
POWER BLOWER
OPERATOR'SMANUAL
A
D
C
B
E
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools required: Cross head screwdriver, soft metal brush
Parts Required: Spark arrestor screen. Gaskets (3)
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
1. Remove spark plug and engine cover (five screws).
2. Remove spark arrestor cover (A), gaskets (B, C, D) and spark
arrestor screen (E) from muffler.
NOTE
When cleaning carbon deposits, be careful not to damage the
catalytic element inside muffler.
3. Clean carbon deposits from muffler components.
4. Replace screen if it is cracked, plugged, or has holes burned
through.
5. Assemble components in reverse order.

20
Exhaust Port Cleaning
Level 2.
Tools required: 4 & 5 mm Hexagon wrench, Cross head
screwdriver, Wood or plastic scraper
Parts Required: As needed: Heat Shield
1. Remove spark plug lead from spark plug, and remove engine or
muffler cover (5 screws).
2. Place piston at top dead center. Remove muffler (A), gaskets
(B), and heat shield (C).
3. Use a wood or plastic scraping tool to clean deposits from
cylinder exhaust port.
IMPORTANT
Never use a metal tool to scrape carbon from the exhaust port.
Do not scratch the cylinder or piston when cleaning the exhaust
port. Do not allow carbon particles to enter the cylinder.
4. Inspect heat shield (C) and gaskets (B) and replace if damaged.
5. Install heat shield (C), gaskets (B), and muffler (A).
6. Tighten muffler mounting bolts (or nuts) to 110-130 in•lbf
(130-150 kgf•cm).
7. Install engine cover.
8. Attach spark plug lead.
9. Start engine, and warm to operating temperature.
10. Stop engine, and re-tighten mounting bolts (or nuts) to specifica-
tions.
A
B
C