Ryobi 770rEB User Manual

770rEB

2-Cycle Gas Trimmer / Edger / Blower

OPERATOR’S MANUAL

FOR QUESTIONS, CALL 1-800-345-8746 in U.S. or

1-800-265-6778 in CANADA

www.ryobi.com

IMPORTANT MANUAL DO NOT THROW AWAY

INTRODUCTION TABLE OF CONTENTS

2

THANK YOU

Thank you for buying this quality product. This modern
outdoor power tool will provide many hours of useful
service. You will find it to be a great labor-saving device.
This operator’s manual provides you with easy-to-under­stand operating instructions. Read the whole manual
and follow all the instructions to keep your new outdoor
power tool in top operating condition. The other manual
that came with your power tool, the parts manual, con­tains all the information that you need to order parts.

PRODUCT REFERENCES, ILLUSTRATIONS AND
SPECIFICATIONS

All information, illustrations and specifications
in this manual are based on the latest product informa­tion available at the time of printing. We reserve the right
to make changes at any time without notice.

Copyright© 1998 Ryobi Outdoor Products, Inc.
All Rights Reserved.

Click-Link® is a registered trademark of Ryobi Outdoor
Products.

Bump Head™ is a trademark of Ryobi Outdoor
Products.

SERVICE INFORMATION

Service on this unit both within and after the warranty
period should be performed only by
an authorized and approved service dealer.
Dial:

1-800-345-8746 in the United States or
1-800-265-6778 in Canada

to obtain the listing of the authorized service dealer
nearest you.

DO NOT RETURN THE UNIT TO THE RETAILER.

NOTE: PROOF OF PURCHASE WILL BE REQUIRED

FOR WARRANTY SERVICE.

Make sure this manual is carefully read and understood
before starting or operating this equipment.

THIS PRODUCT IS COVERED BY ONE OR MORE OF
THE US PATENTS LISTED BELOW: 5,076,149;
4,901,682; 4,779,405; 4,651,422; 4,505,040; 4,463,498;
4,369,742; 4,342,236; 4,223,441; 2,125,688; D-249,012;
D-239,329;

OTHER PATENTS PENDING.

I. California Emission Regulations . . . . . . . . . . . . . . . . . 3

II. Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . 4-8

A. Important Safety Information . . . . . . . . . . . . . . . 4-6

B. Safety and International Symbols . . . . . . . . . . . .6-7

C. Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

III. Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . 9-10

A. Installing and Adjusting J-Handle . . . . . . . . . . . . . 9

B. Installing Cutting Attachment Shield . . . . . . . . . 10

IV. Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . 11

V. Starting/Stopping Instructions . . . . . . . . . . . . . . . . . 12

VI. Operating Instructions . . . . . . . . . . . . . . . . . . . . . 13-16

A. Operating Click-Link System . . . . . . . . . . . . . . . . 13

B. Holding the Trimmer . . . . . . . . . . . . . . . . . . . . . . . 14

C. Adjusting Trimming Line Length . . . . . . . . . . . . . . 14

D. Tips for Best Trimming Results . . . . . . . . . . . . . . 14

E. Decorative Trimming . . . . . . . . . . . . . . . . . . . . . . . 15

F. Holding the Unit with Edger Add-On . . . . . . . . . . 15

G. Tips for Best Edging Results . . . . . . . . . . . . . . . . 15

H. Holding the Unit with Sweeper/Blower Add-On . . 16
I. Operating Tips When Using Sweeper/Blower . . . 16

VII. Maintenance and Repair Instructions . . . . . . . . . 17-22

A. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . 17

B. Line Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

C. Installing a Prewound Reel . . . . . . . . . . . . . . . . . . 19

D. Edger Blade Replacement . . . . . . . . . . . . . . . . . . 19

E. Air Filter Maintenance . . . . . . . . . . . . . . . . . . . . . . 20

F. Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . . 21

G. Replacing the Spark Plug . . . . . . . . . . . . . . . . . . . 22

H. Accessories and replacement parts . . . . . . . . . . . 22

VIII. Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . 23

A. Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

IX. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . 24

X. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

XI. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28

CONTENTS OF CARTON

This unit should consist of the following:

• Model 770rEB Trimmer

J-Handle and Hardware

Cutting Attachment Shield and Hardware

• LE720r Edger Add-On

• SB720r Sweeper/Blower Add-On

• Locking Rod

• Bottle of 2-Cycle Oil

• Operator's Manual

• Parts Manual

• Product Registration Card

These items may be in the hardware bag or

assembled on your unit.

CALIFORNIA EMISSION REGULATIONS

3

SPARK ARRESTOR

WARNING!

RULES FOR SAFE OPERATION

NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S. Forest

Land and the states of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by law that
certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark
arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention
of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these
requirements could subject you to liability or a fine. This unit is not factory equipped with a spark arrestor. If these
items are required in your area, ask your LOCAL SERVICE dealer to install the Optional Accessory Part #180030 Spark

Arrestor Kit.

This unit meets the 1995 to 1998 California emissions regulations for small off-road engines. These units are identified by
the label on the engine of your product. A typical identification label is shown.

To ensure that your unit continues to meet these regulations, refer to the following information and instructions in this
operator’s manual.

Read the Operator’s Manual(s) and follow all warnings and safety instructions. Failure to do so can
result in serious injury to the operator and/or bystanders.

WARNING

California Proposition 65 Warning:

THE ENGINE EXHAUST FROM THIS PRODUCT

CONTAINS CHEMICALS KNOWN TO THE STATE

OF CALIFORNIA TO CAUSE CANCER, BIRTH

DEFECTS OR OTHER REPRODUCTIVE HARM.

FOR QUESTIONS, CALL 1-800-345-8746 IN U.S. OR 1-800-265-6778 in CANADA

The purpose of safety symbols is to attract your
attention to possible dangers. The safety symbols,
and their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions or
warnings they give are not substitutes for proper
accident prevention measures.

SYMBOL MEANING

SAFETY ALERT SYMBOL: Indicates

danger, warning, or caution. Attention is
required in order to avoid serious personal
injury. May be used in conjunction with
other symbols or pictographs.

NOTE: Advises you of information or instructions vital to

the operation or maintenance of the equipment.

DANGER: Failure to obey a safety warning

will result in serious injury to yourself or to
others. Always follow the safety precautions
to reduce the risk of fire, electric shock, and
personal injury.

WARNING: Failure to obey a safety warning

can result in injury to yourself and others.
Always follow the safety precautions to
reduce the risk of fire, electric shock, and
personal injury.

CAUTION: Failure to obey a safety warning

may result in property damage or personal
injury to yourself or to others. Always follow
the safety precautions to reduce the risk of
fire, electric shock, and personal injury.

RULES FOR SAFE OPERATION

4

READ ALL INSTRUCTIONS

BEFORE OPERATING

• Read the instructions carefully. Be familiar with the
controls and proper use of the unit.

• Do not operate this unit when tired, ill, or under the
influence of alcohol, drugs, or medication.

• Children and teens under the age of 15 must not use
the unit, except for teens guided by an adult.

• Inspect the unit before use. Replace damaged parts.
Check for fuel leaks. Make sure all fasteners are in
place and secure. Replace cutting attachment parts
that are cracked, chipped, or damaged in any way.
Make sure the cutting attachment is properly installed
and securely fastened. Be sure the cutting attachment
shield is properly attached, and positioned as recom­mended. Failure to so can result in personal injury to
the operator and bystanders, as well as damage to the
unit.

• Use only 0.080 inch (2.03 mm) diameter genuine Ryobi
replacement line. Never use metal-reinforced line,
wire, or rope, etc.. These can break off and become a
dangerous projectile.

• Be aware of the risk of injury to the head, hands and
feet.

• Clear the area to be cut before each use. Remove all
objects such as rocks, broken glass, nails, wire, or
string which can be thrown or become entangled in
the cutting attachment. Clear the area of children,
bystanders, and pets. At a minimum, keep all children,
bystanders and pets outside a 50 feet (15 m.) radius;
there still may be a risk to bystanders from thrown
objects. Bystanders should be encouraged to wear
eye protection. If you are approached, stop the engine
and cutting attachment immediately.

• Squeeze the throttle control and check that it returns
automatically to the idle position. Make all adjustments
or repairs before using unit.

• This unit was not designed to be used as a brushcut­ter. Do not attach or operate this unit with any type of
brushcutting blade or brushcutting attachment.

SAFETY WARNINGS FOR GAS TRIMMERS

WARNING: Gasoline is highly flammable, and its vapors

can explode if ignited. Take the following precautions:

• Store fuel only in containers specifically designed and
approved for the storage of such materials.

• Always stop the engine and allow it to cool before
filling the fuel tank. Never remove the cap of the fuel
tank, or add fuel, when the engine is hot. Never
operate the unit without the fuel cap securely in place.
Loosen the fuel tank cap slowly to relieve any pressure
in the tank.

• IMPORTANT SAFETY INFORMATION •

• Mix and add fuel in a clean, well-ventilated area
outdoors where there are no sparks or flames. Slowly
remove the fuel cap only after stopping engine. Do not
smoke while fueling or mixing fuel. Wipe up any spilled
fuel from the unit immediately.

• Avoid creating a source of ignition for spilled fuel. Do
not start the engine until fuel vapors dissipate.

• Move the unit at least 30 feet (9.1 m) from the fueling
source and site before starting the engine. Do not
smoke, keep sparks and open flames from the area
while adding fuel or operating the unit.

WHILE OPERATING

• Never start or run the unit inside a closed room or
building. Breathing exhaust fumes can kill. Operate
this unit only in a well ventilated area outdoors.

• Wear safety glasses or goggles that are marked as
meeting ANSI Z87.1-1989 standards, and ear/hearing
protection when operating this unit. Wear a face or
dust mask if the operation is dusty. Long sleeve shirts
are recommended.

• Wear heavy, long pants, boots and gloves. Do not
wear loose clothing, jewelry, short pants, sandals or
go barefoot. Secure hair above shoulder level.

• The cutting attachment shield must always be in place
while operating the unit. Do not operate unit without
both trimming lines extended, and the proper line
installed. Do not extend the trimming line beyond the
length of the shield.

• This unit has a clutch. The cutting attachment remains
stationary when the engine is idling. If it does not, have
the unit adjusted by an authorized service technician.

• Adjust the assist handle to your size to provide the
best grip.

• Be sure the cutting attachment is not in contact with
anything before starting the unit.

• Use the unit only in daylight or good artificial light.

• Avoid accidental starting. Be in the starting position

whenever pulling the starter rope. The operator and
unit must be in a stable position while starting. See
Starting/Stopping Instructions.

• Use the right tool. Only use this tool for the purpose
intended.

• Do not overreach. Always keep proper footing and
balance.

• Always hold the unit with both hands when operating.
Keep a firm grip on both the front and rear handle or
grips.

• Keep hands, face, and feet at a distance from all
moving parts. Do not touch or try to stop the cutting
attachment when it is rotating.

RULES FOR SAFE OPERATION

5

• Do not touch the engine or muffler. These parts get
extremely hot from operation. When turned off they
remain hot for a short time.

• Do not operate the engine faster than the speed
needed to cut, trim or edge. Do not run the engine at
high speed when not cutting.

• Always stop the engine when cutting is delayed or
when walking from one cutting location to another.

• If you strike or become entangled with a foreign
object, stop the engine immediately and check for
damage. Do not operate before repairing damage. Do
not operate the unit with loose or damaged parts.

• Stop and switch the engine to off for maintenance,
repair, or for changing the cutting attachment or other
attachments.

• Use only genuine Ryobi replacement parts when
servicing this unit. These parts are available from
your authorized service dealer. Do not use parts,
accessories or attachments not authorized by Ryobi
for this unit. Doing so could lead to serious injury to
the user, or damage to the unit, and void your
warranty.

• Keep unit clean of vegetation and other materials.
They may become lodged between the cutting
attachment and shield.

• To reduce fire hazard, replace faulty muffler and spark
arrestor, keep the engine and muffler free from grass,
leaves, excessive grease or carbon build up.

WHILE OPERATING WITH EDGER ADD-ON

• Inspect the unit before use. Ensure the blade is
installed correctly and secure.

• Clear the area to be edged before each use. Remove
all objects such as rocks, broken glass, nails, wire, or
string which can be thrown or become entangled in
the edging attachment.

• Do not attempt to touch or stop the blade when it is
rotating.

• A coasting blade can cause injury while it continues to
spin after the engine is stopped or the throttle control
is released. Maintain proper control until the blade has
completely stopped rotating.

• Do not run the unit at high speed when not edging.

• If you strike or become entangled with a foreign

object, stop the engine immediately and check for
damage. Have any damage repaired before attempting
further operations. Do not operate unit with a bent,
cracked or dull blade. Discard blades that are bent,
warped, cracked or broken.

• Stop the engine IMMEDIATELY if you feel excessive
vibration. Vibration is a sign of trouble. Inspect
thoroughly for loose nuts, bolts or damage before
continuing. Repair or replace affected parts as
necessary.

WHILE OPERATING WITH SWEEPER/BLOWER
ADD-ON

• Inspect the unit before use. Ensure the air intake on
sweeper/blower is free of debris.

• Do not overreach. Always keep proper footing and
balance. Take extra caution when cleaning on steps
or stairs.

• Never point the Blower in the direction of people or
pets, or in the direction of windows. Always direct the
blowing debris away from people, animals, glass, and
solid objects such as trees, automobiles, walls, etc.

OTHER SAFETY WARNINGS

• Never store the unit, with fuel in the tank, inside a
building where fumes may reach an open flame or
spark.

• Allow the engine to cool before storing or transporting.
Be sure to secure the unit while transporting.

• Store the unit in a locked up and dry or high and dry
place to prevent unauthorized use or damage, out of
the reach of children.

• Never douse or squirt the unit with water or any other
liquid. Keep handles dry, clean and free from debris.
Clean after each use, see Cleaning and Storage
instructions.

• Keep these instructions. Refer to them often and use
them to instruct other users. If you loan someone this
unit, also loan them these instructions.

SAVE THESE INSTRUCTIONS

SAFETY AND INTERNATIONAL SYMBOLS

This operator's manual describes safety and international symbols and pictographs that may appear on this product.
Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.

SYMBOL MEANING

• SAFETY ALERT SYMBOL

Indicates danger, warning, or caution. May be used in conjunction with other
symbols or pictographs.

• WARNING - READ OPERATOR'S MANUAL

Read the Operator’s Manual(s) and follow all warnings and safety instructions.
Failure to do so can result in serious injury to the operator and/or bystanders.

• FOR SERVICE INFORMATION, CALL:

USA: 1-800-345-8746
CANADA: 1-800-265-6778

• WEAR EYE AND HEARING PROTECTION
WARNING:

Thrown objects and loud noise can cause severe eye injury and hearing loss.
Wear eye protection meeting ANSI Z87.1-1989 standards and ear protection when
operating this unit.

• KEEP BYSTANDERS AWAY
WARNING:

Keep all bystanders, especially children and pets, at least 50 feet (15 m.)

from the operating area.

• PRIMER BULB

Push primer bulb, fully and slowly, 5 to 7 times.

• UNLEADED FUEL

Always use clean, fresh unleaded fuel.

• THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY
WARNING:

Do not operate without the cutting attachment shield in place.

Keep away from the rotating cutting attachment.

• ON/OFF STOP CONTROL

ON / START / RUN

• ON/OFF STOP CONTROL

OFF OR STOP

RULES FOR SAFE OPERATION

6

SYMBOL MEANING

• HOT SURFACE WARNING

Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely
hot from operation. When turned off they remain hot for a short time.

• SHARP BLADE
WARNING:

There is a sharp blade on the cutting attachment shield.

To prevent serious injury, do not touch blade.

• INDICATES OIL

Refer to operator's manual for the proper type of oil.

• CHOKE CONTROL

A • FULL CHOKE position.
B • PARTIAL CHOKE position.
C • RUN position.

• BLOWERS AND BLOWER/VACUUMS – ROTATING IMPELLER BLADES CAN

CAUSE SEVERE INJURY

WARNING:

Stop the engine and allow the impeller to stop before cleaning or

performing any maintenance.

RULES FOR SAFE OPERATION

7

WARNING: The operation of any power tool can cause foreign objects to be thrown into your

eyes. This can lead to severe eye damage. Before commencing power tool operation, always
wear safety glasses or goggles that are marked as meeting ANSI Z87.1-1989 standards, and
a full face shield when needed.

RULES FOR SAFE OPERATION

8

KNOW YOUR UNIT

APPLICATIONS

As a trimmer;

• Cutting grass and light weeds.

• Decorative trimming around trees, fences, etc.

With Edger Add-On;

• Edging along paths, driveways, rockeries, etc.

With Sweeper/Blower Add-On

• Cleaning driveways, porches, around walls, fences,
etc.

Handle Hardware

Primer Bulb

Hanger

Height

Adjustment

Wheel

Air Intakes

Air Output

Edger Blade

Air filter/Muffler

Cover

Fuel Cap

Throttle Control

Power Head

Choke Lever

J-handle

Click-Link

Line Cutting

Blade

Cutting Attachment

Shaft Housing

Blade Shield

Edger Add-On

Sweeper/Blower

Add-On

Shaft Grip

Spark Plug

On/Off Stop Control

Cutting Attachment

Shield

Starter Rope Grip

ASSEMBLY INSTRUCTIONS

9

7. Tighten the clamp screws evenly, until the J-handle
is secure.

6. While holding the unit in the operating position
(Fig. 3), position the J-handle to the location
that provides you the best grip.

Decal

INSTALLING AND ADJUSTING THE J-HANDLE

1. Place the J-handle between the top and middle
clamp pieces (Fig. 1).

(4) Screws

Top Clamp

J-Handle

Middle Clamp

Bottom Clamp

Nuts

2. While holding the three pieces together, install the
four (4) screws through the top clamp and into
middle clamp.

NOTE: The holes in the top and middle clamp will line up

only when assembled correctly.

3. Place the clamps and J-handle the over the shaft
housing and onto the bottom clamp.

4. Hold each hex nut in the bottom clamp recess with a
finger. Start screws with a large Phillips screwdriver.
Do not tighten until you make the handle adjustment.

5. Slide the J-handle in or out until the arrow/white line
on the decal touches the clamp assembly (Fig. 2).

Fig. 1

Fig. 2

Fig. 3

ASSEMBLY INSTRUCTIONS

10

Fig. 4

Fig. 5

Fig. 6

INSTALLING THE CUTTING ATTACHMENT
SHIELD

Use the following instructions if the cutting attachment
shield on your unit is not installed.

WARNING: Never operate the trimmer

without the cutting attachment shield in
place to prevent serious personal injury.

1. Slide the cutting attachment shield into the shield
mount on the cutting attachment. Align the screw
holes in the shield with the holes in the cutting
attachment (Fig. 4).

Screws

Shaft Housing

Hex Lock Nut

Cutting Attachment

Shield

Cutting Attachment

2. Place a hex lock nut into one of the three recessed
holes on the top of the cutting attachment shield
(Fig 5).

3. Install a screw into the hole from the bottom of the
cutting attachment shield and screw it into the nut
installed in step #2 (Fig 6). Do not tighten.

4. Repeat steps 2 and 3 until all three screws have
been started, then tighten securely.

Cutting Attachment

Shield

Recessed Holes

Shield Mount

OIL AND FUEL INFORMATION

11

WARNING: Gasoline is extremely

flammable. Ignited Vapors may explode.
Always stop the engine and allow it to cool
before filling the fuel tank. Do not smoke
while filling the tank. Keep sparks and open
flames at a distance from the area.

WARNING: Remove fuel cap slowly to avoid

injury from fuel spray. Never operate the unit
without the fuel cap securely in place.

WARNING: Add fuel in a clean, well

ventilated area outdoors. Wipe up any spilled
fuel immediately. Avoid creating a source of
ignition for spilt fuel. Do not start the engine
until fuel vapors dissipate.

NOTE: Dispose of the old fuel/oil mix in accordance to

Federal, State, and Local regulations.

OIL AND FUEL MIXING INSTRUCTIONS

Old and/or improperly mixed fuel are the main reasons
for the unit not running properly. Be sure to use fresh,
clean unleaded fuel. Follow the instructions carefully for
the proper fuel/oil mixture.

Definition of Blended Fuels

Today's fuels are often a blend of gasoline and oxy­genates such as ethanol, methanol or MTBE (ether).
Alcohol-blended fuel absorbs water. As little as 1%
water in the fuel can make fuel and oil separate. It forms
acids when stored. When using alcohol-blended fuel,
use fresh fuel (less than 60 days old).

Using Blended Fuels

If you choose to use a blended fuel, or its use is
unavoidable, follow recommended precautions.

• Always use fresh fuel mix per your operator's manual.

• Use the fuel additive STA-BIL® or an equivalent.

• Always agitate the fuel mix before fueling the unit.

• Drain the tank and run the engine dry before storing

the unit.

Using Fuel Additives

The use of fuel additive, such as STA-BIL® Gas
Stabilizer or an equivalent, will inhibit corrosion and mini­mize the formation of gum deposits. Using a fuel addi­tive can keep fuel from forming harmful deposits in the
carburetor for up to six (6) months. Add 0.8 oz. (23 ml.)
of fuel additive per gallon of fuel according to the
instructions on the container. NEVER add fuel additives
directly to the unit's fuel tank.

CAUTION: For proper engine operation and

maximum reliability, pay strict attention to the
oil and fuel mixing instructions on the 2-cycle
oil container. Using improperly mixed fuel can
severely damage the engine.

Thoroughly mix the proper ratio of 2-cycle engine oil
with unleaded gasoline in a separate fuel can. Use a 32:1
fuel/oil ratio. Do not mix them directly in the engine fuel
tank. See the table below for specific gas and oil mixing
ratios.

NOTE: One gallon (3.8 liters) of unleaded gasoline mixed

with one 4 oz. (120 ml.) bottle of RYOBI 2 CYCLE
OIL makes a 32:1 fuel/oil ratio.

+

UNLEADED GAS RYOBI 2 CYCLE OIL

1 US. GALLON + 4.0 FL. OZ.

(3.8 LITERS) (120 ml)

1 LITER + 30 ml

MIXING RATIO - 32:1

STARTING/STOPPING INSTRUCTIONS

12

4. Place the choke lever in the FULL choke position (A)

(Fig. 8).

8. If the engine does not start, repeat steps
4 through 7.

NOTE: If the engine floods while trying to start, place the

choke lever in the RUN position (C) (Fig. 8).
Squeeze the throttle control. Pull the starter rope
briskly. The engine should start within three (3) to
eight (8) pulls.

9. Squeeze the throttle control to warm up engine for 5
to 10 seconds. Place the choke lever in the RUN
position (C) (Fig. 8).

NOTE: Choking is unnecessary when starting a warm

engine. Put the On/Off Stop Control in the ON
position (Fig. 7), and start in PARTIAL Choke
position (B) (Fig. 8).

WARNING: Operate this unit only in a well

ventilated area outdoors. Carbon monoxide
exhaust fumes can be lethal in a confined
area.

STOPPING INSTRUCTIONS

1. Release your hand from the throttle control (Fig. 9).
Allow the engine to cool down by idling.

2. Put the On/Off Stop Control in the OFF position
(Fig. 7).

STARTING INSTRUCTIONS

WARNING:

Avoid accidental starting. Be in
the starting position when pulling the starter
rope (Fig. 9). The operator and unit must be
in a stable position while starting to avoid
serious personal injury.

Avoid serious personal injury, ensure any
Add-On being used is installed correctly
and secure before starting unit.

1. Mix gas with oil. Fill fuel tank with fuel/oil mixture.
See Oil and Fuel Mixing Instructions Pg. 11.

2. Put the On/Off Stop Control in the ON position
(Fig. 7).

Choke Lever

Full Choke

Position (A)

Run

Position (C)

Partial Choke

Position (B)

Starter Rope

Throttle Control

On/Off Stop Control

3. Fully press and release primer bulb slowly 5 to 7
times. Fuel should be visible in the bulb (Fig. 8).
If fuel is not visible, press three (3) more times, or
until it is.

5. With the unit on the ground, squeeze the throttle
control and pull starter rope briskly (Fig. 9). Continue
pulling until the engine sounds as though it wants to
run (normally 2 to 5 pulls).

NOTE: Squeeze the throttle control until the engine has

started and warmed up.

6. Place the choke lever in the

PARTIAL choke position

(B) (Fig. 8).

7. Pull starter rope briskly 1 to 3 times to start the
engine (Fig. 9).

Primer Bulb

Fig. 7

Fig. 9

Fig. 8

OPERATING INSTRUCTIONS

13

2. While firmly holding the add-on, push it straight into
the Click-Link® coupler (Fig. 11).

NOTE: Aligning the release button with the guide recess

will help installation (Fig. 11).

3. Turn the knob clockwise to tighten (Fig. 12).

CAUTION: Lock the release button in the

primary hole and securely tighten the knob
before operating this unit.

OPERATING THE CLICK-LINK® SYSTEM

The Click-Link® system enables the use of these
optional add-ons.

Blower/Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . BV720r

Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720r

Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . HS720r

Snow Thrower . . . . . . . . . . . . . . . . . . . . . . . . . . . ST720r

Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . SS725r

Tree Pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TP720r

Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . TB720r

WARNING: Read and understand operator’s

manual for add-on prior to operation.

Removing the Cutting Attachment or Add-Ons:

1. Turn the knob counterclockwise to loosen (Fig. 10).

2. Press and hold the release button (Fig. 10).

3. While firmly holding the upper shaft housing, pull the
cutting attachment or add-on straight out of the
Click-Link® coupler.

Installing the Cutting Attachment or Add-Ons:

WARNING: To avoid serious personal injury,

shut unit off before removing or installing
add-ons.

NOTE: To make installing or removing the add-on easier,

place the unit on the ground or on a work bench.

1. Turn the knob counterclockwise to loosen (Fig. 10).

Click-Link®Coupler

Release Button

Guide

Recess

Knob

Primary Hole

Upper Shaft

Housing

Lower Shaft

Housing

Release Button

90˚ Edging Hole

180˚ Edging

Hole

Knob

CAUTION: The cutting attachment and add-

ons with the Click-Link® system are to be
used in the primary hole unless stated other­wise in the specific add-ons operator’s man-
ual. Using the wrong hole could lead to per­sonal injury, or damage to the unit.

For edging when using the line head cutting attachment
with Click-Link® models, lock the release button of the
cutting attachment into the 90° edging hole or the 180°
edging hole(Fig. 12). The edger add-on should be
installed with the release button in the primary hole.

Fig. 10

Fig. 11

Fig. 12

Click-Link

®

Coupler

OPERATING INSTRUCTIONS

14

Fig. 13

Fig. 14

Each time the head is bumped, about 1 inch (25.4 mm.)
of trimming line is released. A blade in the cutting
attachment shield will cut the line to the proper length
if excess line is released.

For best results, tap the Bump Head™ on bare ground
or hard soil. If line release is attempted in tall grass, the
engine may stall. Always keep the trimming line fully
extended. Line release becomes more difficult as the
cutting line becomes shorter.

NOTE: Do not rest the Bump Head™ on the ground.

CAUTION: Do not remove or alter the line

cutting blade assembly. Excessive line length
will make the clutch overheat. This may lead
to serious personal injury or damage to the
unit.

Some line breakage will occur from:

• Entanglement with foreign matter

• Normal line fatigue

• Attempting to cut thick, stalky weeds

• Forcing the line into objects such as walls or fence

posts

TIPS FOR BEST TRIMMING RESULTS

• Keep the cutting attachment parallel to the ground.

• Do not force the cutting attachment. Allow the tip of

the line to do the cutting (especially along walls).
Cutting with more than the tip will reduce cutting
efficiency and may overload the engine.

• Cut grass over 8 inches (200 mm.) by working from
top to bottom in small increments to avoid premature
line wear or engine drag.

• Cut from right to left whenever possible. Cutting to the
left improves the unit's cutting efficiency. Clippings are
thrown away from the operator.

• Slowly move the trimmer into and out of the cutting
area at the desired height. Move either in a forward­backward or side-to-side motion. Cutting shorter
lengths produces the best results.

• Trim only when grass and weeds are dry.

• The life of your cutting line is dependent upon;

• Following the previous trimming techniques

• What vegetation is being cut

• Where it’s being cut

For example, the line will wear faster when trimming
against a foundation wall as opposed to trimming
around a tree.

ADJUSTING TRIMMING LINE LENGTH

The Bump Head™ cutting attachment allows you to
release trimming line without stopping the engine. To
release more line, lightly tap the cutting attachment on
the ground (Fig. 14) while operating the trimmer at high
speed.

NOTE: Always keep the trimming line fully extended.

Line release becomes more difficult as cutting
line becomes shorter.

HOLDING THE TRIMMER

WARNING:

Always wear eye, hearing, foot
and body protection to reduce the risk of
injury when operating this unit.

Before operating the unit, stand in the operating position
(Fig. 13). Check for the following:

• The operator is wearing eye protection and proper
clothing.

• The right arm is slightly bent, and the hand is holding
the shaft grip.

• The left arm is straight, and the hand is holding the
handle.

• The unit is at waist level.

• The cutting attachment is parallel to the ground and

easily contacts the vegetation to be cut without the
operator having to bend over.

OPERATING INSTRUCTIONS

15

DECORATIVE TRIMMING

Decorative trimming is accomplished by removing all
vegetation around trees, posts, fences, etc.

Rotate the whole unit so that the cutting attachment is at
a 30° angle to the ground (Fig. 15).

HOLDING THE UNIT WITH EDGER ADD-ON

WARNING:

Always wear eye, hearing, foot
and body protection to reduce the risk of
injury when operating this unit.

Before operating the unit, stand in the operating position
(Figs. 16). Check for the following:

• The operator is wearing eye protection and proper
clothing.

• The right arm is slightly bent, and the hand is holding
the shaft grip.

• The left arm is straight, and the hand is holding the
handle.

• The unit is at waist level.

• The edger wheel adjusted for proper cut depth and

edger positioned as shown in Fig. 16.

ADJUSTING EDGER CUTTING DEPTH

1. Loosen the adjustment knob above the wheel
(Fig 17).

2. Slide the wheel to the desired position.

• Raising the wheel increases the cutting depth.

• Lowering the wheel decreases the cutting depth.

3. Tighten the adjustment knob securely.

TIPS FOR BEST EDGING RESULTS

• Keep the cutting attachment perpendicular to the

ground.

• Do not force the edger. Edge the first time at a lower

depth, then do the area again with a deeper setting.

• Walk the edger at a slow, even pace

• Check the blade condition, as it wears it becomes

smaller, reducing the cutting depth performance.
Replace with a new blade as required.

Fig. 15

Fig. 16

Fig. 17

Raising

Lowering

OPERATING INSTRUCTIONS

16

OPERATING TIPS WHEN USING
SWEEPER/BLOWER

• To reduce the risk of hearing loss associated with
sound level(s), the use of hearing protection is
required.

• Operate power equipment only at reasonable hours –
not early in the morning or late at night when people
might be disturbed. Comply with time listed in local
ordinance. Usual recommendations are 9:00 am to
5:00 pm, Monday through Saturday.

• To reduce noise levels, limit the number of pieces of
equipment used at any one time.

• To reduce noise levels, operate power blowers at the
lowest possible speed to do the job.

• Use rakes and brooms to loosen debris before
blowing.

• In dusty conditions, slightly dampen surfaces or use a
mister attachment when water is available.

• Conserve water by using power blowers instead of
hoses for many lawn and garden applications,
including areas such as gutters, screens, patios,
grills, porches, and gardens

• Watch out for children, pets, open windows, or freshly
washed cars, and blow debris away.

• After using blowers and other equipment, CLEAN UP!
Dispose of debris in trash receptacles.

HOLDING THE UNIT WITH SWEEPER/BLOWER
ADD-ON

WARNING:

Always wear eye, hearing, foot
and body protection to reduce the risk of
injury when operating this unit.

Before operating the unit, stand in the operating position
(Figs. 18). Check for the following:

• The operator is wearing eye protection and proper
clothing.

• The right arm is slightly bent, and the hand is holding
the shaft grip.

• The left arm is straight, and the hand is holding the
handle.

• The unit is at waist level.

• The sweeper/blower is parallel to the ground and is

positioned so debris is blown away from operator.

WARNING: To prevent serious injury to

yourself or others, or possible damage to
property, never point the sweeper/blower in
the direction of people or pets, or in the
direction of windows. Always direct the
blowing debris away from people, animals,
glass, and solid objects such as trees,
automobiles, walls, etc.

1. Use the sweeper/blower to clean around buildings,

walls and fences (Figs. 18 & 19).

2. Use around trees, shrubs and flower beds (Fig. 20).

Fig. 18

Fig. 19

Fig. 20

MAINTENANCE AND REPAIR INSTRUCTIONS

17

FREQUENCY MAINTENANCE REQUIRED REFER TO:

Before Starting Engine Fill fuel tank with correct oil and fuel mixture. Page 11

Every 10 Hours Clean and re-oil air filter. Page 20

Every 50 Hours Check spark plug condition and gap. Page 22

NOTE: Some maintenance procedures may require

special tools or skills. If you are unsure about
these procedures take your unit to an authorized
service dealer.

MAINTENANCE SCHEDULE

These required maintenance procedures should be
performed at the frequency stated in the table. They
should also be included as part of any seasonal tune-up.

WARNING: To prevent serious personal

injury, never do maintenance or repairs with
unit running. Always do maintenance and
repairs on a cool unit. Disconnect spark plug
wire to ensure the unit will not start.

Fig. 21

Fig. 23

Fig. 22

LINE INSTALLATION

Always use genuine Ryobi 0.080 inch (2.03 mm.)
replacement line. Line other than specified may make
the engine overheat or fail.

WARNING: To prevent serious personal

injury, never use metal-reinforced line, wire,
or rope, etc.. These can break off and
become a dangerous projectile.

There are two methods to replace the trimming line.

• Wind the inner reel with new line

• Install a prewound inner reel

NOTE: Replacement line Part # 610375, or a prewound

reel, Part # 153577 can be purchased from your
local authorized dealer.

Winding the Existing Inner Reel

1. Hold the outer spool with one hand and unscrew the

Bump Knob™ counterclockwise (Fig. 21). Inspect
the bolt inside the Bump Knob™ to make sure it
moves freely. Replace the Bump Knob™ if damaged.

NOTE: A Bump Knob™, Part # 153066 can be

purchased from your local authorized dealer.

4. Use a clean cloth to clean the inner reel, spring,
shaft, and inner surface of the outer spool (Fig. 23).

2. Remove the inner reel from the outer spool (Fig. 22).

3. Remove spring from the inner reel (Fig. 22).

NOTE: An inner reel spring, Part # 610317 can be

purchased from your local authorized dealer.

Inner Reel

Outer Spool

Spring

Bump Knob™

Shaft

MAINTENANCE AND REPAIR INSTRUCTIONS

18

Fig. 26

Fig. 27

Fig. 24

Fig. 25

Fig. 28

5. Check the indexing teeth on the inner reel and outer
spool for wear (Fig. 24). If necessary, remove burrs
or replace the reel and spool.

NOTE: A cutting attachment head assembly,

Part # 153700 can be purchased from your
local authorized dealer.

Indexing Teeth

9. Place the spring in the inner reel. Insert the ends of
the line through the eyelets in the outer spool and
place inner reel inside the outer spool (Fig. 28). Push
the inner reel and outer spool together. While holding
the inner reel and outer spool, grasp the ends and
pull firmly to release the line from the holding slots in
the spool.

NOTE: The spring must be assembled on the inner reel

before reassembling the cutting attachment.

7. Wind the lines in tight even layers, onto the reel
(Fig. 26). Wind the line in the direction indicated on
the inner reel. Place your index finger between the
two lines to stop the lines from overlapping. Do not
overlap the ends of the line.

NOTE: Failure to wind the line in the direction indicated

will cause the cutting attachment to operate
incorrectly.

8. Insert the ends of the line into the two holding slots
(Fig. 27).

6. Take approximately 25 feet (7.6 m) of new 0.080 inch
diameter trimming line, loop it into two equal lengths.
Insert each end of the line through one of the two
holes in the inner reel (Fig. 25). Pull the line through
the inner reel so that the loop is as small as possible.

NOTE: Always use the correct line length when installing

trimming line on the unit. The line may not
release properly if the line is too long.

Holding Slots

10. Hold the inner reel in place and install the

Bump Knob™ by turning clockwise.
Tighten securely.

MAINTENANCE AND REPAIR INSTRUCTIONS

19

INSTALLING A PREWOUND REEL

1. Hold the outer spool with one hand and unscrew the

Bump Knob™ counterclockwise (Fig. 21, Pg 17).
Inspect the bolt inside the Bump Knob™ to make
sure it moves freely. Replace the Bump Knob™
if damaged.

2. Remove the old inner reel from the outer spool
(Fig. 22, Pg. 17).

3. Remove the spring from the old inner reel
(Fig. 22, Pg. 17).

4. Use a clean cloth to clean the spring, shaft, and
inner surface of the outer spool (Fig. 23, Pg. 17).

5. Place the spring in the new inner reel. Insert the ends
of the line through the eyelets in the outer spool
(Fig. 28).

6. Place the new inner reel inside the outer spool. Push
the inner reel and outer spool together. While holding
the inner reel and outer spool, grasp the ends and
pull firmly to release the line from the holding slots in
the spool.

NOTE: The spring must be assembled on the inner reel

before reassembling the cutting attachment.

7. Hold the inner reel in place and install the
Bump Knob™ by turning clockwise.
Tighten securely.

EDGER BLADE REPLACEMENT

WARNING:

To avoid serious personal injury,
always wear gloves while handling, removing
or installing the blade.

WARNING: The gear housing gets hot

after long periods of use. To avoid serious
personal injury, do not touch the housing
until it has cooled.

1. Line up the hole in output shaft with the locking rod
slot. Insert the locking rod through the slot into the
output shaft hole (Fig. 29).

2. While holding the locking rod, loosen the nut on the
blade by turning it clockwise with a 5/8 inch wrench
(Fig. 30). Remove the nut, retaining washer and
blade. Keep the nut and blade retainer for
installation.

Fig. 29

Fig. 31

Fig. 30

Fig. 32

3. Install the new blade, blade retainer, and nut
(Fig. 31). Insert the locking rod through the slot into
the output shaft hole. Make sure that the blade stays
flat and centered against the output shaft while
tightening the lock nut counterclockwise (Fig. 32).

4. If you have a torque wrench, tighten the nut to
325-335 in.•lbs (37-38 N•m), while holding the
locking rod in the slot.

If you do not have a torque wrench, hold the locking
rod in the slot. Rotate the nut counterclockwise
with a 5/8 inch closed-ended or socket wrench, until
the nut presses against the washer and the blade is
snug. Make sure the blade assembly is installed
correctly, then rotate the nut an additional 1/4-1/2
turn (Fig. 32).

5. Remove the locking rod.

WARNING: Verify the blade is flat against

the output shaft after the nut is tightened. If
the blade is off-center, the unit will be
damaged by vibration, and the blade may fly
off, which can cause serious personal injury.

Locking Rod

Locking Rod

Blade Retainer

Lock Nut

Loosen

Tighten

Edger Blade

Output Shaft

Hole

Locking Rod

Slot

Output Shaft

MAINTENANCE AND REPAIR INSTRUCTIONS

20

Fig. 34

Fig. 35

Fig. 36

4. Apply enough clean SAE 30 oil to lightly coat the
filter (Fig. 36).

Air Filter

3. Wash the filter in detergent and water (Fig. 35).
Rinse the filter thoroughly. Squeeze out excess
water. Allow it to dry completely.

Cleaning the Air Filter

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to
cool before you clean or do any maintenance
on it.

Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Not maintaining the
air filter will VOID the warranty.

1. Remove air filter/muffler cover. See

Removing the

Air filter/Muffler Cover.

2. Remove the air filter from behind the air filter/muffler
cover (Fig. 34).

Fig. 33

AIR FILTER MAINTENANCE

Removing the Air Filter/Muffler Cover

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to
cool before you clean or do any maintenance
on it.

1. Place the choke lever in the PARTIAL choke
position (B).

NOTE: The choke lever must be in the PARTIAL

choke position (B) (Fig. 33) to remove the air
filter/muffler cover.

2. Remove the four (4) screws securing the air
filter/muffler cover (Fig. 33). Use a flat blade or
T20 Torx bit screwdriver.

Choke Lever

Screws

Screws

Partial Choke

Position (B)

3. Pull the cover from the engine. Do not force.

MAINTENANCE AND REPAIR INSTRUCTIONS

21

Fig. 38

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable through the
Air filter/Muffler cover (Fig. 38).

NOTE: Careless adjustments can seriously damage your

unit. An authorized service dealer should make
carburetor adjustments.

Check Fuel Mixture

Old and/or improperly mixed fuel is usually the reason
for the unit not running properly. Drain and refill the tank
with fresh, properly mixed fuel prior to making any
adjustments. Refer to Oil and Fuel Information Pg. 11.

Clean Air Filter

The condition of the air filter is important to the operation
of the unit. A dirty air filter will restrict air flow and
change the air/fuel mixture. This is often mistaken for an
out of adjustment carburetor. Check the condition of the
air filter before adjusting the idle speed screw. Refer to

Air Filter Maintenance Pg. 20.
Adjust Idle Speed Screw

WARNING: The cutting attachment may be

spinning during idle speed adjustments.
Wear protective clothing and observe all
safety instructions to prevent serious person­al injury.

NOTE: The cutting attachment should not rotate when

the engine idles.

3. If the cutting attachment rotates when the engine

idles, turn the idle speed screw counterclockwise
1/8 of a turn at a time (as needed), to reduce idle
speed.

Checking the fuel mixture, cleaning the air filter, and
adjusting the idle speed screw should solve most engine
problems.

If not and:

• The engine will not idle,

• The engine hesitates or stalls on acceleration,

• There is a loss of engine power,

have the carburetor adjusted by an authorized service
dealer.

WARNING: When the unit is turned off make

sure the cutting attachment has stopped
before the unit is set down to prevent serious
personal injury.

Idle Speed Screw

6. Replace the air filter in the air filter/muffler cover
(Fig. 34).

NOTE: Operating the unit without the air filter and air

filter/muffler cover assembly, will VOID the
warranty.

Reinstalling the Air filter/Muffler Cover

1. Place the air filter/muffler cover over the back of the
carburetor and muffler.

NOTE: The choke lever must be in the PARTIAL choke

position (B) (Fig. 33) to install the air filter/muffler
cover.

2. Insert the four (4) screws into the holes in the air
filter/muffler cover (Fig. 33) and tighten.

Do not over tighten.

5. Squeeze the filter to spread and remove excess oil
(Fig. 37).

Fig. 37

If after checking the fuel mixture and cleaning the
air filter the engine still will not idle, adjust the idle speed
screw as follows.

1. Start the engine and let it run at a high idle for a

minute to warm up. See Starting/Stopping

Instructions

, Pg. 12.

2. Release the throttle trigger and let the engine idle. If
the engine stops, insert a small phillips or flat blade
screwdriver into the hole in the air filter/muffler cover
(Fig. 38). Turn the idle speed screw in,

clockwise,

1/8 of a turn at a time (as needed) until the engine
idles smoothly.

MAINTENANCE AND REPAIR INSTRUCTIONS

22

REPLACING THE SPARK PLUG

Use a Champion RDJ7Y spark plug (or equivalent).
The correct air gap is 0.020 inch (0.5 mm.). Remove the
plug after every 50 hours of operation and check its
condition.

1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull it from the spark plug.

2. Clean around the spark plug. Remove the spark plug
from the cylinder head by turning a 5/8 in. socket
counterclockwise.

3. Replace cracked, fouled or dirty spark plug. Set the
air gap at

0.020 in. (0.5 mm.) using a feeler gauge

(Fig. 39).

CAUTION: Do not sand blast, scrape, or

clean electrodes. Grit in the engine could
damage the cylinder.

4. Install a correctly gapped spark plug in the cylinder
head. Tighten by turning the 5/8 in. socket clockwise
until snug.

If using a torque wrench torque to;

110-120 in.•lb. (12.3-13.5 N•m).
Do not over tighten.

ACCESSORIES/REPLACEMENT PARTS

2-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147543

Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610311

Replacement Line . . . . . . . . . . . . . . . . . . . . . . . 610375

Replacement Line Cartridge . . . . . . . . . . . . . . . . 153577

Inner Reel Spring . . . . . . . . . . . . . . . . . . . . . . . . 610317

Bump Head Knob Assembly . . . . . . . . . . . . . . . . 153066

Fuel Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180000

Edger Blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613223

Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . 682075

0.020 in.

(0.5 mm.)

Fig. 39

CLEANING AND STORAGE

23

TRANSPORTING

• Allow the engine to cool before transporting.

• Secure the unit while transporting.

• Drain fuel from unit.

• Tighten fuel cap before transporting.

CLEANING

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to
cool before you clean or do any maintenance
on it.

Use a small brush to clean off the outside of the unit.
Do not use strong detergents. Household cleaners that
contain aromatic oils such as pine and lemon, and
solvents such as kerosene, can damage plastic housing
or handle. Wipe off any moisture with a soft cloth.

STORAGE

• Never store the unit with fuel in the tank where fumes
may reach an open flame or spark.

• Allow the engine to cool before storing.

• Store the unit locked up to prevent unauthorized use

or damage.

• Store the unit in a dry, well ventilated area.

• Store the unit out of the reach of children.

LONG TERM STORAGE

If the unit will be stored for an extended time, use the
following storage procedure.

1. Drain all fuel from the fuel tank and drain into a

container with the same 2-cycle fuel mixture. Do not
use fuel that has been stored for more than 60 days.
Dispose of the old fuel/oil mix in accordance to
Federal, State, and Local regulations.

2. Start the engine and allow it to run until it stalls.

This ensures that all fuel has been drained from the
carburetor.

3. Allow the engine to cool. Remove the spark plug

and put 1 oz. (30 ml.) of any high quality motor oil or
2-cycle oil into the cylinder. Pull the starter rope
slowly to distribute the oil. Reinstall the spark plug.

NOTE: Remove the spark plug and drain all of the oil

from the cylinder before attempting to start the
trimmer after storage.

4. Thoroughly clean the unit and inspect for any loose

or damaged parts. Repair or replace damaged parts
and tighten loose screws, nuts or bolts. The unit is
ready for storage.

TROUBLESHOOTING

24

CAUSE ACTION

Cutting attachment bound with grass Stop the engine and clean cutting attachment

Cutting attachment out of line Refill with new line

Inner reel bound up Replace the inner reel

Cutting head dirty Clean inner reel and outer spool

Line welded Disassemble, remove the welded section

and rewind the line

Line twisted when refilled Disassemble and rewind the line

Not enough line is exposed Push the Bump Knob and pull out line until

4 inches (102 mm.) of line is outside of the
cutting attachment

CAUSE ACTION

Old or improperly mixed fuel Drain gas tank / Add fresh fuel mixture

Improper carburetor adjustment Take to an authorized service dealer for

carburetor adjustment

CAUSE ACTION

On/Off Stop Control is in OFF position Turn On/Off Stop Control to ON

Empty fuel tank Fill fuel tank with properly mixed fuel

Primer bulb wasn't pressed enough Press primer bulb fully and slowly 5-7 times

Engine flooded Use starting procedure with choke lever in the

RUN position, Pg. 12

Old or improperly mixed fuel Drain gas tank / Add fresh fuel mixture

Fouled spark plug Replace or clean the spark plug

ENGINE WILL NOT START

ENGINE WILL NOT IDLE

ENGINE WILL NOT ACCELERATE

ENGINE LACKS POWER OR STALLS WHEN CUTTING

CAUSE ACTION

Air Filter is Plugged Replace or clean the air filter

Old or improperly mixed fuel Drain gas tank / Add fresh fuel mixture

Improper carburetor adjustment Adjust per instruction Pg. 21

CAUSE ACTION

Old or improperly mixed fuel Drain gas tank / Add fresh fuel mixture

Improper carburetor adjustment Take to an authorized service dealer for

carburetor adjustment

Cutting attachment bound with grass Stop the engine and clean the cutting attachment

Dirty air filter Clean or replace the air filter

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

SPECIFICATIONS

25

Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle

Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25 in. (31.75 mm.)

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9 cu in. (31 cc.)

Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal

Operating RPM (Trimmer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,600-8,000 rpm

Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800-3,900 rpm

Ignition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic

Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Slide Switch

Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.020 in. (0.5 mm.)

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture

Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32:1

Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm, All-Position

Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Rewind

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baffled with Guard

Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Spring Return

Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 oz. (530 ml.)

Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HD Polyethylene

ENGINE

DRIVE SHAFT and CUTTING ATTACHMENT

Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steel Tube, Click-Link

Throttle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finger-Tip Trigger

Unit Weight (No fuel, with cutting attachment, cutting attachment shield and J-handle) . . . . . . . 12.25 lbs. (5.6 kg.)

Cutting Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual Line Bump Head

Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optional

Line Spool Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 in (76.2 mm)

Trimming Line Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.080 in (2.03 mm.)

Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 in. (40.64 cm)

EDGER ADD-ON

Unit Weight (Add-On only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.25 lbs. (2.36 kg.)

Cutting Depth (maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 in. (63.5 mm)

Wheel Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.75 in (95.25 mm)

Gearbox Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.23:1

SWEEPER/BLOWER ADD-ON

Unit Weight (Add-On only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.25 lbs. (1.46 kg.)

Air Output Velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 100 MPH

NOTES

26

27

The California Air Resources Board and Ryobi
Outdoor Products (ROP), are pleased to explain the
emission control system warranty on your 1995 and
later small off-road engine. In California, new small
off-road engines must be designed, built and
equipped to meet the State's stringent anti-smog
standards. ROP must warrant the emission control
system on your small off-road engine for the periods
of time listed below provided there has been no
abuse, neglect or improper maintenance of your small
off-road engine.

Your emission control system may include parts such
as the carburetor or fuel injection system, the ignition
system, and catalytic converter. Also included may be
hoses, belts, connectors and other emission-related
assemblies.

Where a warrantable condition exists, ROP will repair
your small off-road engine at no cost to you including
diagnosis, parts and labor.

The 1995 and later small off-road engines are
warranted for two years. If any emission-related part
on your engine is defective, the part will be repaired
or replaced by ROP.

OWNER'S WARRANTY RESPONSIBILITIES:

• As the small off-road engine owner, you are
responsible for the performance of the required
maintenance listed in your operator's manual. ROP
recommends that you retain all receipts covering
maintenance on your small off-road engine, but
ROP cannot deny warranty solely for the lack of
receipts or for your failure to ensure the
performance of all scheduled maintenance.

• As the small off-road engine owner, you should
however be aware that ROP may deny you warranty
coverage if your small off-road engine or a part has
failed due to abuse, neglect, improper maintenance
or unapproved modifications.

• You are responsible for presenting your small
off-road engine to a Ryobi Authorized Service
Center as soon as a problem exists. The warranty
repairs should be completed in a reasonable
amount of time, not to exceed 30 days.

If you have any questions regarding your warranty
rights and responsibilities, you should call
1-800-345-8746.

MANUFACTURER'S WARRANTY COVERAGE:

• The warranty period begins on the date the engine
or equipment is delivered to the retail purchaser.

• The manufacturer warrants to the initial owner and
each subsequent purchaser, that the engine is free
from defects in material and workmanship which
cause the failure of a warranted part for a period of
two years.

• Repair or replacement of warranted part will be
performed at no charge to the owner at an
Authorized Ryobi Service Center. For the nearest
location, please contact Ryobi at: 1-800-345-8746.

• Any warranted part which is not scheduled for
replacement, as required maintenance which is
scheduled only for regular inspection to the effect of
"Repair or replace as necessary" is warranted for
the warranty period. Any warranted part which is
scheduled for replacement as required maintenance
will be warranted for the period of time up to the
first scheduled replacement point for that part.

• The owner will not be charged for diagnostic labor
which leads to the determination that a warranted
part is defective, if the diagnostic work is performed
at an Authorized Ryobi Service Center.

• The manufacturer is liable for damages to other
engine components caused by the failure of a
warranted part still under warranty.

• Failures caused by abuse, neglect or improper
maintenance are not covered under warranty.

• The use of add-on or modified parts can be
grounds for disallowing a warranty claim. The
manufacturer is not liable to cover failures or
warranted parts caused by the use of add-on or
modified parts.

• In order to file a claim, go to your nearest
Authorized Ryobi Service Center. Warranty services
or repairs will be provided at all Authorized Ryobi
Service Centers.

• Any manufacturer approved replacement part
may be used in the performance of any warranty
maintenance or repair of emission related parts
and will be provided without charge to the owner.
Any replacement part that is equivalent in
performance or durability may be used in
non-warranty maintenance or repair and will
not reduce the warranty obligations of the
manufacturer.

• The following components are included in the
emission related warranty of the engine, air filter,
carburetor, primer, fuel lines, fuel pick up/fuel filter,
ignition module, spark plug and muffler.

CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS

ALL IMPLIED WARRANTIES ARE LIMITED IN
DURATION TO THE TWO (2) YEAR WARRANTY
PERIOD OR NINETY (90) DAYS FOR PRODUCTS
USED FOR ANY COMMERCIAL PURPOSE.
ACCORDINGLY, ANY SUCH IMPLIED WARRANTIES
INCLUDING MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, OR OTHERWISE, ARE
DISCLAIMED IN THEIR ENTIRETY AFTER THE
EXPIRATION OF THE APPROPRIATE TWO-YEAR
OR NINETY DAY WARRANTY PERIOD. RYOBI’S
OBLIGATION UNDER THIS WARRANTY, IS STRICTLY
AND EXCLUSIVELY LIMITED TO THE REPAIR OR
REPLACEMENT OF DEFECTIVE PARTS, AND ROP
DOES NOT ASSUME OR AUTHORIZE ANYONE TO
ASSUME FOR THEM ANY OTHER OBLIGATION.
SOME STATES DO NOT ALLOW LIMITATIONS ON
HOW LONG AN IMPLIED WARRANTY LASTS, SO
THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

RYOBI ASSUMES NO RESPONSIBILITY FOR
INCIDENTAL, CONSEQUENTIAL OR OTHER
DAMAGES INCLUDING, BUT NOT LIMITED TO
EXPENSE OF RETURNING THE RYOBI PRODUCT
TO AN AUTHORIZED SERVICE DEALER AND
EXPENSE OF DELIVERING IT BACK TO THE
OWNER, MECHANIC’S TRAVEL TIME, TELEPHONE
OR TELEGRAM CHARGES, RENTAL OF A LIKE
PRODUCT DURING THE TIME WARRANTY SERVICE
IS BEING PERFORMED, TRAVEL, LOSS OR DAMAGE
TO PERSONAL PROPERTY, LOSS OF REVENUE,
LOSS OF USE OF THE PRODUCT, LOSS OF TIME,
OR INCONVENIENCE. SOME STATES DO NOT
ALLOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
THE ABOVE LIMITATION OR EXCLUSION MAY NOT
APPLY TO YOU.

This warranty gives you specific legal rights, and you
may also have other rights which vary from state to
state.

This warranty applies to all RYOBI Products
manufactured by RYOBI and sold in the United States
and Canada.

To locate your nearest service dealer dial
1-800-345-8746 in the United States or
1-800-265-6778 in Canada.

RYOBI OUTDOOR PRODUCTS

550 N. 54th Street

Chandler, AZ 85226 U.S.A.

RYOBI CANADA INC.

275 Industrial Rd

Cambridge, Ontario N1R 6K2 CANADA

RYOBI OUTDOOR PRODUCTS warrants each new
RYOBI Product for two (2) years according to the
following terms.

This warranty extends to the original retail purchaser
only and commences on the date of original retail
purchase.

Any part of the RYOBI Product manufactured or
supplied by RYOBI and found in the reasonable
judgement of RYOBI to be defective in material or
workmanship will be repaired or replaced by an
authorized RYOBI service dealer without charge for
parts and labor.

The RYOBI Product including any defective part must
be returned to an authorized service dealer within the
warranty period. The expense of delivering the RYOBI
Product to the dealer for warranty work and the
expense of returning it back to the owner after repair
or replacement will be paid for by the owner. RYOBI’s
responsibility in respect to claims is limited to making
the required repairs or replacements and no claim of
breach of warranty shall be cause for cancellation or
rescission of the contract of sale of any RYOBI
Product. Proof of purchase will be required by the
dealer to substantiate any warranty claim. All warranty
work must be performed by an authorized RYOBI
service dealer.

This warranty is limited to ninety (90) days from the
date of original retail purchase for any RYOBI Product
that is used for rental or commercial purposes, or any
other income-producing purpose.

This warranty does not cover any RYOBI Product that
has been subject to misuse, neglect, negligence, or
accident, or that has been operated in any way
contrary to the operating instructions as specified in
the RYOBI Operator’s Manual. This warranty does not
apply to any damage to the RYOBI Product that is the
result of improper maintenance or to any RYOBI
Product that has been altered or modified so as to
adversely affect the product's operation, performance
or durability or that has been altered or modified so as
to change its intended use. The warranty does not
extend to repairs made necessary by normal wear or
by the use of parts or accessories which are either
incompatible with the RYOBI Product or adversely
affect its operation, performance or durability.

In addition, this warranty does not cover:

A. Tune-ups - Spark Plugs, Carburetor Adjustments,

Filters

B. Wear items - Bump Knobs, Outer Spools,

Cutting Line, Inner Reels, Starter Pulley,
Starter Ropes, Drive Belts

RYOBI reserves the right to change or improve the
design of any RYOBI Product without assuming
any obligation to modify any product previously
manufactured.

LIMITED TWO-YEAR WARRANTY

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

FOR QUESTIONS CALL 1-800-345-8746 IN U.S.

OR 1-800-265-6778 IN CANADA

OPERATOR’S MANUAL PART NO. 182211 REV. A (7922)
PRINTED IN U.S.A. 12/98