Ryobi Outdoor 875r User Manual

875r

4-Cycle Gas Trimmer

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

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-to­understand 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.
SpeedSpool®is a registered 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 or www.ryobi.com on the world wide

web for authorized service dealers in the United States

Or

• 1-800-265-6778 in Canada to obtain the listing of the

authorized service dealer nearest you.

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
US PATENTS, OTHER PATENTS PENDING.

2

INTRODUCTION TABLE OF CONTENTS

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

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

A. Important Safety Information . . . . . . . . . . . . . . . 4-5

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

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

III. Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . 9

A. Adjusting the J handle . . . . . . . . . . . . . . . . . . . . . . 9

IV. Oil and Fuel Information . . . . . . . . . . . . . . . . . . . 10-11

A. Recommended Oil Type . . . . . . . . . . . . . . . . . . . 10

B. Adding Oil to Crankcase-Initial Use . . . . . . . . . . . 10

C. Recommended Fuel Type . . . . . . . . . . . . . . . . . . 11

D. Fueling the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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

VI. Operating Instructions . . . . . . . . . . . . . . . . . . . . 13-15

A. Operating the 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

VII. Maintenance and Repair Instructions . . . . . . . . . 15-24

A. Maintenance Schedule . . . . . . . . . . . . . . . . . . . . 15

B. Line Installation for the SpeedSpool . . . . . . . . . . 16

C. Installing a Prewound Reel . . . . . . . . . . . . . . . . . 17

D. Cleaning the SpeedSpool . . . . . . . . . . . . . . . . . . 18

E. SpeedSpool Replacement Parts . . . . . . . . . . . . . 18

F. Checking the Oil Level . . . . . . . . . . . . . . . . . . . . . 19

G. Changing the Oil . . . . . . . . . . . . . . . . . . . . . . . . . 19

H. Air Filter Maintenance . . . . . . . . . . . . . . . . . . . . . 20

I. Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . 21

J. Rocker Arm Clearance . . . . . . . . . . . . . . . . . . . . . 22

K. Replacing the Spark Plug . . . . . . . . . . . . . . . . . . 24

L. Spark Arrestor Maintenance . . . . . . . . . . . . . . . . 24

M.Accessories/Replacement parts . . . . . . . . . . . . . 24

VIII. Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . 25

IX. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . 26

X. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

XI. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-30

CONTENTS OF CARTON

This carton should include of the following:

• Model 875r Trimmer with J-Handle

• Operator's Manual

• Parts Manual

• Product Registration Card

• Bottle of 4-Cycle Oil

3

CALIFORNIA EMISSION REGULATIONS

WARNING

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 state 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 factory equipped with a spark arrestor. If it requires
replacement, ask your LOCAL SERVICE dealer to install the Accessory Part #180890 Spark Arrestor Screen.

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

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.

This engine meets U.S. EPA PH1 and 2000 model year and later 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.

SPARK ARRESTOR

WARNING!

RULES FOR SAFE OPERATION

4

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.

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.

• IMPORTANT SAFETY INFORMATION •

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.

• 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.

RULES FOR SAFE OPERATION

5

• 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.

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 dry area, locked up or up high
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

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 J-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.

• 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.

RULES FOR SAFE OPERATION

6

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.

• OIL

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

RULES FOR SAFE OPERATION

7

SYMBOL MEANING

• 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

• 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: Sharp blade on cutting attachment shield. To prevent serious injury, do not

touch line cutting blade.

• CHOKE CONTROL

A • FULL choke position.
B •

PARTIAL choke position.

C •

RUN position.

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

APPLICATIONS

As a trimmer;

• Cutting grass and light weeds.

• Edging

• Decorative trimming around trees, fences, etc.

Other optional accessories may be used with the 875r.
See list of add-ons on page 13.

Cutting Attachment

Shield

Fuel Cap

Throttle

Control

J-Handle

Cutting Attachment

Shaft Grip

Primer Bulb

Choke Lever

Oil Fill Plug / Dipstick

Air Filter Cover

Engine Feet

Spark Plug

On/Off Stop Control

Shaft Housing

Starter Rope Grip

KNOW YOUR UNIT

Clink-Link

Line Cutting Blade

Spark Plug

Muffler

Muffler Guard

Spark Arrestor

ASSEMBLY INSTRUCTIONS

9

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

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

Decal

ADJUSTING THE J-HANDLE

1. Loosen the four (4) screws holding the J-handle in
place (Fig. 1). Do not completely remove the screws.

(4) Screws

J-Handle

2. 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

OIL AND FUEL INFORMATION

10

RECOMMENDED OIL TYPE

Using the proper type and weight of oil in the
crankcase is extremely important. Check the
oil before each use and change the oil

regularly. Failure to use the correct oil, or
using dirty oil, can cause premature engine wear and
failure.

Use a high-quality SAE 30 weight oil of API (American
Petroleum Institute) service class SF, SG, SH.

ADDING OIL TO CRANKCASE – INITIAL USE
NOTE: This unit is shipped without being filled with oil.

In order to avoid damage to the unit, put oil in
the crankcase before attempting to start unit.

Your unit is supplied with one 3.4 fluid oz. (100 ml.)
bottle of SAE 30 SF, SG, SH oil (Fig. 4).

NOTE: Save the bottle to measure the correct amount

for future oil changes. See Changing the Oil
Pg. 19.

1. Unscrew the top of the bottle of oil and remove the

paper seal covering the opening. Replace top. Cut
the tip off the funnel spout (Fig. 4).

2. Place the unit on a flat level surface.

3. Remove the oil plug / dipstick from the crankcase

(Fig. 5).

Fig. 4

Fig. 6

Oil Fill

NOTE: Never add oil to the fuel or fuel tank.

5. Wipe up any oil that may have spilled and reinstall
the oil fill plug / dipstick.

The importance of checking and maintaining the proper
oil level in the crankcase cannot be overemphasized.
Check oil before each use and change as needed. See

Changing the Oil Pg. 19.

Oil Fill Plug/Dipstick

Oil Fill Hole

Fig. 5

4. Pour the entire bottle of oil into the oil fill hole
(Fig. 6).

O-Ring

Funnel Spout

OIL AND FUEL INFORMATION

11

FUELING UNIT

WARNING: Gasoline is extremely flammable

and its vapors can explode if ignited. To
avoid serious personal injury, 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 away from the
area.

1. Remove fuel cap (Fig. 7).

WARNING: Remove fuel cap slowly to avoid
injury from gasoline spray.

Fig. 7

Fuel Cap

Fuel Tank

Gas Can Spout

2. Place spout of gas container into the fill hole on the
fuel tank (Fig. 7) and fill tank.

WARNING: Add gasoline in a clean, well
ventilated area outdoors. Avoid creating a
source of ignition for spilt fuel.

NOTE: Do not overfill tank.

3. Wipe up any gasoline that may have spilled

4. Reinstall the fuel cap.

WARNING: Never operate the unit without
the fuel cap securely in place.

5. Move the unit at least 30 ft. (9.1 m) from the fueling
source and site before starting the engine.

NOTE: Dispose of the old gasoline in accordance to

Federal, State, and Local regulations.

RECOMMENDED FUEL TYPE

Old fuel is the primary reason for the unit not
running properly. Be sure to use fresh, clean,
unleaded Gasoline.

NOTE: This is a four cycle engine. In order to avoid

damage to the unit, do not mix oil with

Gasoline.

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 or form
acids when stored. Use fresh fuel (less than 60 days
old), when using alcohol-blended fuel.

Using Blended Fuels

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

• Always use fresh unleaded gasoline

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

• Drain tank and run the engine dry before storing unit.

Using Fuel Additives

The use of fuel additives, 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 gas tank.

Unleaded

Gasoline

STARTING/STOPPING INSTRUCTIONS

12

WARNING: Avoid accidental starting. Be in

the starting position whenever pulling the
starting rope. To avoid serious personal
injury, the operator and unit must be in a
stable position while starting.

STARTING INSTRUCTIONS

Cold Start - First Start of the Day or Engine Ran Out
of Fuel

WARNING: Operate this unit only in a well

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

1. Check oil level in crankcase. See Checking the Oil
Level Pg. 19.

2. Fill the fuel tank with fresh, clean, unleaded gasoline
(see page 11).

3. Put the Start/Stop Engine Control in the START [I]
position (Fig. 8).

Fig. 8

Fig. 9

Fig. 10

4. Place the choke lever in the FULL choke (A)
position (Fig. 9).

NOTE: Slide the choke lever directly above the

appropriate symbol on air filter cover decal
(Fig. 9).

5. Fully press and release the primer bulb slowly 7
times. Gasoline should be felt and visible in the bulb
(Fig. 9). If gasoline has not entered the bulb, press
three more times, or until it does.

11. Release the throttle control to the idle position and
begin operation.

NOTE: If the engine does not start using these

procedures, repeat steps 5 through 11 using
TWO (2) pulls in the FULL choke (A) position.

Engine Re-Start - Warm Engine With Fuel

1. Put the Start/Stop Engine Control in the START [I]
position (Fig. 8).

2. Move the choke lever to the PARTIAL (B) position
(Fig. 9).

3. Fully press and release the primer bulb slowly 7
times. Gasoline should be felt and visible in the bulb
(Fig. 9). If gasoline has not entered the bulb, press
three more times, or until it does.

4. Squeeze the throttle control to the wide open
(full throttle) position.

5. With the unit in the starting position (Fig. 10), pull the
starter rope briskly until the engine starts.

6. When the engine starts, move the choke lever to the
RUN (C) position, and run at full throttle for 30
seconds.

NOTE: If the engine does not start using the Engine

Re-start procedures, revert to the Cold Start

procedures.

NOTE: 4-stroke engines, like cars, are able to start in

the idle position. As an alternate method, you
may want to start your unit in the idle position
when the unit is warm. With the Start/Stop
control in the START position, pull the starter
rope briskly. When the engine starts, run at full
throttle for 30 seconds. If the unit fails to start or
dies, revert to the Engine Re-Start proceedure.

STOPPING INSTRUCTIONS

1. Release your hand from the throttle control (Fig. 10).
Allow the engine to idle.

2. To stop the engine, put the Start/Stop Engine
Control in the STOP [O] position (Fig. 8).

6. Squeeze the throttle control to the wide open
(full throttle) position.

7. With the unit in the starting position (Fig. 10) pull the
starter rope briskly 5 times in the FULL choke (A)
position. If the engine attempts to run before the fifth
pull, proceed to step 8.

8. Move the choke lever to the PARTIAL (B) position
(Fig. 9).

NOTE: The engine will not run in the FULL choke (A)

position.

9. Pull the starter rope 1 to 3 pulls until the engine
starts. Run for 15-30 seconds. If the unit fails to start
return to step 7.

10. Move the choke lever to the RUN (C) position and
run at full throttle for 30 seconds.

Start / Stop

Control

Primer Bulb

Choke Lever

Starter Rope

Throttle Control

OPERATING INSTRUCTIONS

13

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
manual. 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).

OPERATING THE CLICK-LINK®SYSTEM

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

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

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

Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720r

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

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

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

Sweeper/Blower . . . . . . . . . . . . . . . . . . . . . . . . . SB720r

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. 11).

2. Press and hold the release button (Fig. 11).

3. While firmly holding the upper shaft housing, pull the
cutting attachment or add-on straight out of the
Click-Link®coupler (Fig. 12).

Installing the Cutting Attachment or Add-Ons:

WARNING: To avoid serious personal injury

and damage to the unit, 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 knob counterclockwise to loosen (Fig.11).

Fig. 11

Click-Link® Coupler

Release Button

Guide Recess

Knob

Primary Hole

Upper Shaft Housing

90˚ Edging Hole

Click-Link®Coupler

2. While firmly holding the add-on, push it straight into
the Click-Link®coupler (Fig. 12).

NOTE: Aligning the release button with the guide recess

will help installation (Fig. 11).

3. Turn the knob clockwise to tighten (Fig. 13).

CAUTION: Lock the release button in the
primary hole and securely tighten the knob
before operating this unit.

Fig. 12

Fig. 13

Knob

180˚ Edging Hole

Lower Shaft Housing

Release Button

OPERATING INSTRUCTIONS

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

while the unit is running .

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 left to right whenever possible. Cutting to
the right 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.

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. 14). 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
J-handle.

Fig. 14

• The unit is at waist level.

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

positioned so debris is blown away from operator.

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. 15) 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

Fig. 15

OPERATING INSTRUCTIONS

15

WARNING: To prevent serious 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. 16

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. 16).

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.

MAINTENANCE AND REPAIR INSTRUCTIONS

MAINTENANCE REQUIRED

Fill fuel tank with fresh fuel
Check oil

Clean and re-oil air filter.

Change oil
Change oil
Clean Spark Arrestor

Check rocker arm to valve clearance and adjust as
required

Check rocker arm to valve clearance and adjust as
required

Check spark plug condition and gap

FREQUENCY

Before Starting Engine

Every 10 Hours

1st Change at 10 Hours
Every 25 Hours there after
Every 25 Hours

10 hours on new engine

Every 50 Hours

Every 50 Hours

REFER TO:

Page 11
Page 19

Page 20

Page 19
Page 19
Page 24

Page 22-23

Page 22-23

Page 24

MAINTENANCE AND REPAIR INSTRUCTIONS

16

Line Locking Hole

Trimming Line

Line Loading Hole

Eyelet

5. Insert the line into the locking hole (Fig. 18). Do not
push the line more than 1/2 inch (12.7 mm) into the
line locking hole. When inserted correctly the line
will form a small loop (Fig. 19).

6. Pull the line from the outer spool until the line is tight
against the inner reel (Fig. 20).

LINE INSTALLATION FOR THE SPEEDSPOOL

®

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

WARNING: 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 SpeedSpool

®

trimming line.

• Wind the inner reel with new line

• Install a prewound inner reel

Winding the Inner Reel With New Line
NOTE: It Is unnecessary to remove the bump knob to

install new trimming line.

1. Cut two pieces of 0.080 inch (2.03 mm) trimming
line, 10 feet (3 m) long.

WARNING: 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.

2. Hold the outer spool and turn the inner reel
counterclockwise to line up the arrows on the outer
spool and inner reel (Fig. 17).

3. Pull old line out of the line loading and line locking
holes (Figs. 18 and 19).

4. Insert a piece of trimming line into one of the two
eyelets in the outer spool. Push it up through the line
loading hole in the inner reel (Fig. 18). Do not bend
the line when inserting it into the eyelet.

Top View Of The SpeedSpool

®

Outer Spool

Arrows

Inner Reel

Bump Knob

Fig. 17

Fig. 18

Fig. 20

Fig. 19

MAINTENANCE AND REPAIR INSTRUCTIONS

17

Bump Knob

Foam Seal

Spring

Inner Reel

INSTALLING A PREWOUND REEL

1. Turn the Bump Knob counterclockwise and remove
the bump knob, spring, and foam seal (Fig. 23).

9. If winding the line becomes difficult or the line jams,
pull the ends of the line from the spool (Fig. 22).
Continue winding the inner reel counterclockwise .

4. Hold the inner reel in place and install the bump
knob, spring and foam seal. Press down and turn the
bump knob clockwise. Grasp the ends and pull
firmly to release the line from the holding slots in the
inner reel. (Fig. 22).

Releasing the Inner Reel

If the SpeedSpool®does not release line correctly, pull
the ends of the line firmly from the spool (Fig. 22). If this
does not release line, follow the Cleaning the

SpeedSpool®instructions.

2. Pull the old inner reel with existing line from the outer
spool.

3. Insert the ends of the prewound inner reel line into
the outer spool eyelets (Fig. 24). Push the new inner
reel, arrow side up, into the outer spool.

7. Repeat procedures 4-6 with the second piece of line.

8. Hold the outer spool. Wind the inner reel
counterclockwise until approximately four (4) inches
(102 mm) of line remain (Fig. 21).

NOTE: Do not wind the inner reel before installing the

second piece of line.

Fig. 21

Fig. 22

Fig. 23

Fig. 24

MAINTENANCE AND REPAIR INSTRUCTIONS

18

2. Pull out the bump knob, spring, and foam seal
(Fig. 23, Pg. 17).

3. Pull the inner reel with existing line from the outer
spool (Fig. 23, Pg. 17).

4. Remove any existing line from the inner reel before
cleaning. Remove any debris or grass from the knob,
spring, inner reel, and foam seal. Wash the inner reel
with warm soapy water (Fig. 26).

Inner Reel

Shaft

Plunger

NOTE: The inner reel must be totally dry before

reinstalling it into the outer spool. Do not
lubricate the inner reel or outer spool assembly.

6. Place the inner reel into the outer spool.

7. Place the bump knob, spring, and foam seal into the
inner reel (Fig. 23, Pg. 17).

8. Press the bump knob down and tighten clockwise.

9. Install new line as described in Line Installation for

the SpeedSpool®Pg. 16.

5. Clean the shaft and the inner surface of the outer
spool. To clean the shaft underneath the plunger,
press down on the plunger (Fig. 27). Remove any dirt
or debris from the shaft.

Fig. 25

Fig. 27

Fig. 26

CLEANING THE SPEEDSPOOL

®

Cleaning the SpeedSpool®may be necessary,

• To remove jammed or excess line,

• If the SpeedSpool®becomes difficult to wind or

does not operate correctly when bumping the head
on the ground,

1. Hold the outer spool, and unscrew the bump knob
counterclockwise (Fig. 25).

SPEEDSPOOL®REPLACEMENT PARTS

Replacement Line . . . . . . . . . . . . . . . . . . . . . . . . 181472

Replacement Line Cartridge . . . . . . . . . . . . . . . . 181460

Inner Reel Spring . . . . . . . . . . . . . . . . . . . . . . . . 181465

Foam Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181467

Inner Reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181460

Bump Head Knob Assembly . . . . . . . . . . . . . . . . 181468

(Bump Head, Inner Reel, Spring, )
These SpeedSpool

®

replacement parts can be

purchased from your local authorized dealer.

MAINTENANCE AND REPAIR INSTRUCTIONS

19

CHECKING THE OIL LEVEL

CAUTION: To prevent extensive engine wear

and damage to the unit, always maintain the
proper oil level in the crankcase. Never
operate the unit with the oil level below the
bottom of the dipstick.

The importance of checking and maintaining the proper
oil level in the crankcase cannot be overemphasized.
Check oil before each use:

1. Stop engine and allow oil to drain into the crankcase.

2. Place the unit on a flat, level surface to get a proper
oil level reading.

3. Keep dirt, grass clippings, etc., out of the engine.
Clean the area around the oil fill plug/dipstick before
removing it.

4. Remove the oil fill plug/dipstick and wipe off oil.
Reinsert it all the way back in.

5. Remove the oil fill plug/dipstick and check oil level.
Oil should be up to the top of the dipstick (Fig. 28).

6. If the level is low, add a small amount of oil to the oil
fill hole and recheck (Fig. 29). Repeat until the oil
level reaches the top of the dipstick.

NOTE: Do not overfill the unit.

Top of Dipstick

O-Ring

Oil Fill Plug/Dipstick

CHANGING THE OIL

For a new engine, change the oil after the first 10 hours
of operation. Change the oil while the engine is still
warm. The oil will flow freely and carry away more
impurities.

CAUTION: Wear gloves to prevent injury
when handling the unit.

1. Unplug spark plug boot to eliminate starting

2. Remove the oil fill plug/dipstick.

3. Pour the oil out of the oil fill hole and into a container
by tipping the unit to a vertical position (Fig. 30).
Allow ample time for complete drainage.

Fig. 30

Fig. 28

Fig. 29

NOTE: Make sure the O-ring is in place on the oil fill

plug/dipstick when checking and changing the
oil (Fig. 29).

Oil Fill Plug/Dipstick

Oil Fill Hole

O-Ring

Full

Add 1.4-1.5 Oz.

(41-44 ml)

6. Replace the oil fill plug/dipstick.

7. Reconnect spark plug boot.

Fig. 31

4. Wipe up any oil residue on the unit and clean up any
oil that may have spilled. Dispose of the oil
according to Federal, State and local regulations.

5. Refill the crankcase with 3.4 fluid ounce (100 ml) of
SAE 30 SF, SG, SH oil.

NOTE: Use the bottle and spout saved from initial use to

measure the correct amount. 3.4 ounce (100 ml)
is approximately to the top of the label on the
bottle (Fig. 31). Check the level with the dipstick.
If the level is low, add a small amount of oil and
recheck (Fig. 28). Do not overfill.

Fill Level

MAINTENANCE AND REPAIR INSTRUCTIONS

20

AIR FILTER MAINTENANCE

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. Open the air filter cover. Push the tab on the right
side of the cover in, pull the air filter cover out and to
the left (Fig. 32).

NOTE: It may be necessary to remove the fuel cap to

completely remove the air filter cover

2. Remove the air filter (Fig. 32).

3. Wash the filter in detergent and water (Fig. 33). Rinse
the filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly coat
the filter (Fig. 34).

Air Filter

Choke Lever

Air Filter Cover

Tab

Fig. 32

Fig. 33

Fig. 34

Fig. 35

5. Squeeze the filter to spread and remove excess oil
(Fig. 35).

Fig. 36

Back Plate Slot

Slots

Choke Lever

6. Replace the filter (Fig. 36).

NOTE: If the unit is operated without the air filter, you

will VOID the warranty.

7. Reinstall the air filter cover. Position the hooks on
the left side of the air filter cover into the slots at the
left side of the back plate (Fig. 36).

NOTE: It may be necessary to remove the fuel cap to

reinstall the air filter cover

8. Swing the cover to the right until the tab on the air
filter cover snaps into place in the slot on the back
plate (Fig. 36).

9. Replace the fuel cap, if removed.

Back Plate

MAINTENANCE AND REPAIR INSTRUCTIONS

21

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable. An idle
adjustment screw is reached though a hole in the top of
the engine cover (Fig 37).

NOTE: Careless adjustments can seriously damage your

unit. An authorized service dealer should make
carburetor adjustments.

Check Fuel

Old fuel is usually the main reason for the unit not
running properly. Drain and refill the tank with clean,
fresh unleaded fuel prior to doing any adjustments. Refer
to Oil and Fuel Information.

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.

Adjust Idle Speed Screw

WARNING: The cutting attachment may be

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

If after checking the fuel 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.

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 engine cover
(Fig. 37). Turn the idle speed screw in, clockwise,
1/8 of a turn at a time (as needed) until the engine
idles smoothly.

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, 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 Adjustment Screw

Fig. 37

MAINTENANCE AND REPAIR INSTRUCTIONS

22

4. Disconnect the spark plug wire.

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

6. Remove the engine cover (Fig. 39).

7. Clean dirt from around the rocker arm cover.
Remove the screw holding the rocker arm cover with
a large flat blade screwdriver or Torx T25 bit
(Fig. 41). Remove the rocker arm cover and gasket.

3. Remove the screw behind the engine cover (Fig. 40).

Remove Screws

Rocker Arm Cover

Screw

Fig. 38

Fig. 40

Fig. 41

Engine Cover

Spark Plug Hole

2. Remove the two (2) screws on top of the engine
cover with a phillips screwdriver (Fig. 39).

Fig. 39

Muffler Cover

Engine Cover

Muffler

ROCKER ARM CLEARANCE

This requires disassembly of the engine. If you feel
unsure or unqualified to perform this, take the unit to an
authorized service center.

NOTE: Inspect the valve to rocker arm clearance with a

feeler gauge after the first 10 hours of operation
and then every 50 hours of operation thereafter.

• The engine must be cold when checking or adjusting

the valve clearance.

• This task should be performed inside, in a clean, dust

free area.

1. Remove the muffler cover by pressing down on the
corner with a flat blade screwdriver (Fig. 38). Slide
the notches on the sides of the muffler cover over
the tabs on the engine cover and remove

8. Pull the starter rope slowly to bring the piston to the
top of its travel, (known as top dead center). Check
that:

• The piston is at the top of its travel while looking in
the spark plug hole (Fig. 41).

• Both rocker arms move freely, and both valves are
closed.

If not, repeat this step.

Top View Of The Engine

MAINTENANCE AND REPAIR INSTRUCTIONS

23

10. If the clearance is not within specification:

a. Turn the adjusting nut using a 5/16 inch (8 mm)

wrench or nut driver (Fig. 42).

• To increase clearance, turn the adjusting nut
counterclockwise.

• To decrease clearance, turn the adjusting nut
clockwise.

b. Recheck both clearances, and adjust as necessary.

11. Reinstall the rocker arm cover using a new gasket.
Torque the screw to 20–30 in•lb (2.2–3.4 N•m).

NOTE: A rocker arm cover gasket, Part # 182099 can be

purchased from your local authorized dealer.

12. Reinstall the engine cover. Check alignment of the
cover before tightening the screws. Tighten screws.

13. Replace the muffler cover. Slip the long tabs on the
muffler cover into the engine cover. Slide the
notches on the side of the muffler cover over the
tabs on the engine cover and snap into place
(Fig. 38).

14. Check the spark plug and reinstall. See Replacing
the Spark Plug.

15. Replace the spark plug wire.

9. Slide the feeler gauge between the rocker arm and
the valve return spring. Measure the clearance
between the valve stem and rocker arm (Fig 42).
Do both intake and exhaust valves.

Adjusting Nuts

Feeler Gauge

Rocker Arms

Gasket

Fig. 42

Fig. 43

The recommended clearance for both intake and
exhaust is .003 – .006 in. (.076 – 0.152 mm). Use a
standard automotive .005 in. (0.127 mm) feeler gauge.
The feeler gauge should slide between the rocker arm
and valve stem with a slight amount of resistance,
without binding (Fig. 43).

Feeler Gauge

Adjusting Nut

Rocker Arm

.003–.006 in.

(.076–0.152 mm)

Valve Stem

MAINTENANCE AND REPAIR INSTRUCTIONS

24

ACCESSORIES/REPLACEMENT PARTS

4-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181786

Oil Fill Plug / Dipstick . . . . . . . . . . . . . . . . . . . . . 182378

Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180852

Spark Arrestor Screen . . . . . . . . . . . . . . . . . . . . . 180890

Replacement Line Cartridge . . . . . . . . . . . . . . . . 181460

Inner Reel Spring . . . . . . . . . . . . . . . . . . . . . . . . 181465

Bump Head Knob Assembly . . . . . . . . . . . . . . . . 181468

Fuel Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181083

Shoulder Harness . . . . . . . . . . . . . . . . . . . . . . . . 682075

Click-Link Coupler . . . . . . . . . . . . . . . . . . . . . . . 181616

0.025 in.

(0.655 mm.)

REPLACING THE SPARK PLUG

Use only genuine Ryobi spark plugs. The correct air gap
is 0.025 in. (0.655 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 the cap from the spark plug.

2. Clean dirt from 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 0.025 in. (0.655 mm.) using a feeler gauge
(Fig. 44).

Fig. 44

CAUTION: Do not sand blast, scrape, or clean

electrodes. Grit in the engine could damage the
cylinder.

4. Install a correctly gaped 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.

NOTE: A replacement spark plug Part # 180852 can be

purchased from your local authorized dealer.

Fig. 45

Muffler

Spark Arrestor Screen

Spark Arrestor Cover

Screw

Tab

Slot

SPARK ARRESTOR MAINTENANCE

1. Remove the muffler cover. See Rocker Arm
Clearance, Pg. 22.

2. With a flat blade screwdriver or Torx T20 bit, remove
the screw attaching the spark arrestor cover to the
muffler (Fig. 45).

3. Pull the tab on the spark arrestor cover out of the
muffler. Remove the spark arrestor cover.

4. Remove the spark arrestor screen from the spark
arrestor cover.

5. Clean the spark arrestor screen with a wire brush, or
replace.

6. Reinstall the spark arrestor screen, spark arrestor
cover, and screw.

NOTE: A replacement spark arrestor screen Part #

180890 can be purchased from your local
authorized dealer.

CLEANING AND STORAGE

25

LONG TERM STORAGE

If the unit will be stored for an extended time,

1. Drain all gasoline from the gas tank into a container .
Do not use gas that has been stored for more than
60 days. Dispose of the old gasoline in accordance
to Federal, State, and Local regulations.

2. Start the engine and allow it to run until it stalls. This
ensures that all gasoline has been drained from the
carburetor.

3. Allow the engine to cool. Remove the spark plug and
put 1 oz. (30 ml) of high quality motor 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. Change the oil. See

Changing the Oil, Pg. 19.

Dispose of the old oil in accordance to Federal,
State, and Local regulations.

5. 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.

TRANSPORTING

• Allow the engine to cool before transporting.

• Secure the unit while transporting.

• Drain the gas tank before transporting.

• Tighten gas 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 such
as kerosene, can damage plastic housing or handle.
Wipe off any moisture with a soft cloth.

STORAGE

• Never store the unit with gasoline 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.

Store the unit in one of three (3) positions:

1. The unit hanging by the cutting attachment end.

2. The unit hanging by the engine.

3. The unit setting upright on the cutting attachment
shield and engine feet.

TROUBLESHOOTING

26

CAUSE ACTION

Oil in cutting head Clean the cutting attachment

If further assistance is required, contact your authorized service dealer.

CAUSE ACTION

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

Cutting head 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 Gasoline Drain fuel tank / Add fresh Gasoline

Improper carburetor adjustment Take to an authorized service dealer for

carburetor adjustment

Clogged Spark Arrestor Screen Clean or Replace. See Pg. 24

CAUSE ACTION

Ignition switch is OFF Turn switch to ON

Empty fuel tank Fill fuel tank

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 Gasoline Drain fuel tank / Add fresh Gasoline

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 Gasoline Drain fuel tank / Add fresh Gasoline

Improper carburetor adjustment Adjust per instruction Pg. 20

CAUSE ACTION

Old Gasoline Drain gas tank / Add fresh Gasoline

Improper carburetor adjustment Take to an authorized service dealer for

carburetor adjustment

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

Dirty air filter Clean or replace the air filter

Clogged Spark Arrestor Screen Clean or Replace. See Pg. 24

CUTTING HEAD WILL NOT ADVANCE LINE

CUTTING LINE ADVANCES UNCONTROLLABLY

SPECIFICATIONS

27

ENGINE

Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 cu. in. (26.2 cc)

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

Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,800-7,800 rpm

Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 rpm

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

Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rocker Switch

Valve clearance (intake and exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .003–.006 in. (.076–.0152 mm)

Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 inch (0.655 mm)

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAE 30 Oil

Crankcase Oil Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 oz (100 ml)

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unleaded

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

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

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

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

Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 oz (591 ml)

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

ENGINE

DRIVE SHAFT & CUTTING ATTACHMENT

Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum Tube (Click-Link)

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

Unit Weight (No Fuel, with J-handle, Cutting attachment shield and Cutting attachment) . . . . . . . 13.5 lbs (6.13 kg)

Cutting Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual String Cutting Head

Line Spool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bump Line Releaser

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

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

Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 inches (38.1 cm)

NOTES

28

29

The California Air Resources Board and Ryobi
Outdoor Products (ROP), are pleased to explain the
emission control system warranty on your 2000 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 2000 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.

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. 182394 REV. A (9554)
PRINTED IN U.S.A. 5/99

LIMITED TWO-YEAR WARRANTY