Ryobi ZR51950A—250000001, ZR51970A—250000001, ZR51990A—250000001, ZR51950A, ZR51970A Operator's Manual
...Page 1
Trimmer/Brushcutter
Model No. ZR51950A—250000001 & Up
Model No. ZR51970A—250000001 & Up
Model No. ZR51990A—250000001 & Up
Operator’s Manual
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual. Save this manual.
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READ THIS INFORMATION
Before you use your new trimmer/brushcutter, read the following helpful hints to get you started.
Fueling
DANGER:
Gasoline is extremely ammable and explosive. A
re or explosion from gasoline will burn you and
others.
1. Obtain a clean container that is approved for use with gasoline.
2. Mix all of the 2-cycle oil provided with 1 US gallon of 87-octane, unleaded
gasoline.
3. Fill the trimmer’s gas tank carefully.
Cold Starting vs. Warm Starting
When you restart the trimmer/brushcutter and you are not sure whether the engine is still warm, set
the start lever to RUN (Choke Open) and pull the starter cord. If the engine does not start within 5
pulls, refer to “To Start a Cold Engine” later in this manual.
Flooded Engine
Will the engine start? If not, it may be ooded. Relax, this is easy to correct. Set the start lever to
RUN (Choke Open). Squeeze the trigger and pull the starter cord quickly for 10 to 12 pulls.
If the engine does not start, refer to “Troubleshooting” later in this manual.
WARNING: The engine exhaust from this product contains chemicals known to the State
of California to cause cancer, birth defects, or other reproductive harm.
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Printed in USA
All rights reserved
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Table of Contents
Introduction...................................................................................................................................................................................4
Safety Rules .............................................................................................................................................................................. 5-6
Symbols .................................................................................................................................................................................... 6-7
Product Labels ..............................................................................................................................................................................8
Features................................................................................................................................................................................... 9-10
Product Specications ...........................................................................................................................................................9
Assembly................................................................................................................................................................................11-15
Unpacking............................................................................................................................................................................ 11
Connecting the Attachment to the Upper Shaft...................................................................................................................12
Removing the Attachment from the Upper Shaft ................................................................................................................12
Attaching the Front Handle..................................................................................................................................................12
Attaching the Shoulder Strap...............................................................................................................................................12
Attaching the Grass Deector..............................................................................................................................................12
Converting from Brushcutter to Trimmer............................................................................................................................14
Converting from Trimmer to Brushcutter............................................................................................................................15
Operation............................................................................................................................................................................... 16-19
Applications.........................................................................................................................................................................16
Mixing the Fuel....................................................................................................................................................................16
Filling the Tank ....................................................................................................................................................................16
Starting the Product .............................................................................................................................................................17
Stopping the Product............................................................................................................................................................17
Operating the Trimmer ........................................................................................................................................................18
Operating the Brushcutter....................................................................................................................................................19
Maintenance.......................................................................................................................................................................... 20-23
Emissions Maintenance Schedule........................................................................................................................................20
Cleaning the Product............................................................................................................................................................20
Servicing the Product...........................................................................................................................................................20
Replacing the Cutting Line............................................................................................................................................ 20-21
Replacing the Spool.............................................................................................................................................................21
Checking the Fuel Cap.........................................................................................................................................................22
Cleaning the Air Filter .........................................................................................................................................................22
Replacing the Spark Arrester............................................................................................................................................... 22
Replacing the Spark Plug.....................................................................................................................................................23
Storing the Product .............................................................................................................................................................. 23
Transporting the Product......................................................................................................................................................23
Troubleshooting ..........................................................................................................................................................................24
Warranty................................................................................................................................................................................ 25-26
Table of Contents
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5
Introduction
Thank you for purchasing a Ryobi product.
We would like for you to be completely satised with your new product, so feel free to contact an authorized service dealer
for help with service, genuine Ryobi parts, or other information you may require.
Whenever you contact an authorized service dealer, always know the model and serial numbers of the product. These numbers will help the service representative provide exact information about your specic product. You will nd the model and
serial number decal located on the motor housing.
For your convenience, write the product model and serial numbers in the space below.
Model No.
Serial No.
Model No./Serial No.
Label
Read this manual carefully to learn how to operate and maintain your product correctly. Reading this manual will help you
and others avoid personal injury and damage to the product. Although Ryobi designs, produces, and markets safe, state-ofthe-art products, you are responsible for using the product properly and safely. You are also responsible for training persons
you allow to use the product about safe operation.
The Ryobi warning system in this manual identies potential hazards and has special safety messages that help you and
others avoid personal injury, even death. DANGER, WARNING, and CAUTION are signal words that identify the level of
hazard. However, regardless of the hazard, be extremely careful. Two other words, “Important” and “Note,” highlight information.
Signal Word Explanation
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury. It may also be used to alert against unsafe practices that may cause
property damage.
Important Advises you of important information or instructions vital to the operation or maintenance
of the equipment.
Note Advises you of additional information concerning the operation or maintenance of the
equipment.
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Introduction
Page 5
Safety Rules
WARNING:
Read and understand all instructions. Failure to follow all instructions may result in serious personal
injury as well as damage to the product.
This product has been designed and manufactured to
meet or exceed the requirements of the current version of
ANSI B175.3, safety requirements for gasoline-powered
string trimmers and brushcutters.
■ Physical Condition of the Operator. Do not operate
this product when tired, ill, or under the inuence of
alcohol, drugs, or medication.
■ Clothing Requirements. Always wear long heavy
pants, boots, and gloves. Do not wear loose clothing, jewelry, short pants, sandals, or go barefoot.
Secure hair so that it is above shoulder level to avoid
entanglement in moving parts.
■ Protective Accessories Requirements. Wear eye
protection marked to comply with ANSI Z87.1
standards when operating this product. Wear hearing
protection during extended periods of operation.
■ Condition of Trimmer Before Use. Inspect the
product before each 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 in the
position recommended by the manufacturer. Use
only exible, non-metallic line recommended by the
manufacturer. For example, never use wire or wirerope, which can break off and become a dangerous
projectile.
■ Proper Stance. Keep rm footing and balance. Do
not overreach. Keep the cutting attachment below
waist level. Keep all parts of your body away from
the rotating cutting attachment and hot surfaces.
■ Exhaust Gases. Never start or run the product inside
a closed room or building; breathing exhaust fumes
can cause illness or death.
■ Fueling. Mix and pour fuel outdoors where there are
no sparks and ames. Slowly remove the fuel cap
only after stopping the engine. Do not smoke while
fueling or mixing fuel. Wipe spilled fuel from the
product. Move at least 30 ft. (9 m) away from the
fueling source and site before starting the engine.
■ Work Area. Clear the area to be cut before each
use. Remove all objects, such as rocks, broken glass,
nails, wire, or string, that 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
ft. (15 m) radius. Because there still may be a risk of
injury to bystanders from thrown objects, bystanders
should be encouraged to wear eye protection. If you
are approached while operating the product, stop the
engine and the cutting attachment.
■ Dangerous Environments. To avoid falling, do not
use the product in damp or wet locations.
■ Controlling the Product. During carburetor adjustments the cutting attachment may spin. Therefore,
you should wear protective equipment and observe
all safety instructions when adjusting the carburetor. For products equipped with a clutch, be sure the
cutting attachment stops turning when the engine
idles. When the product is turned off, make sure the
cutting attachment has stopped before setting down
the product.
■ Use the Right Product. Use the product for the
intended purpose only.
■ Condition of Brushcutter Before Use. The handles
shall be mounted according to the manufacturer’s
instructions. Do not attach any blade to a product
without proper installation of all required parts. Failure to use the proper parts can cause the blade to y
off and seriously injure the operator and/or bystanders. Discard blades that are bent, warped, cracked,
broken, or damaged in any way.
■ Use the Right Equipment. Always use the barrier
bar on the front handle and the shoulder strap with
the brushcutter.
■ Blade Thrust. Blade thrust may occur when the
spinning blade contacts an object that it does not immediately cut. A blade thrust can be violent enough
to cause the product and/or operator to be propelled
in any direction, and possibly lose control of the
product. Blade thrust can occur without warning if
the blade snags, stalls, or binds. This is more likely
to occur in areas where it is difcult to see the material being cut.
■ Stopping the Product. A coasting blade can cause
injury while it continues to spin after the engine is
stopped or throttle is released. Maintain proper control until the blade has completely stopped rotating.
Safety Rules
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Safety Rules
This engine is equipped with a spark arrester mufer. It is a violation of California Public Resource Code Section
4442 to use or operate this engine without a spark arrester mufer on any forest-covered, brush-covered, or grasscovered land. Other states or federal areas may have similar laws.
This spark ignition system complies with Canadian ICES-002.
Save these instructions. Refer to them frequently and use them to instruct others who may use this product. If you
loan someone this product, loan these instructions also.
Symbols
The following symbols are located on the product. Please study them and learn their meaning. Proper interpretation of these
symbols allows you to operate the product better and safer.
Symbol Name Explanation
Safety Alert Symbol Precautions that involve your safety.
Read the Operator’s Manual Read the operator’s manual before starting or operating this product.
Failure to follow operating instructions and safety precautions in the
operator’s manual can result in serious injury.
Wear Eye and Hearing Protection Wear eye protection which is marked to comply with ANSI Z87.1 as
well as hearing protection when operating this equipment.
Keep Bystanders Away Keep all bystanders at least 50 feet (15 m) away.
Ricochet Thrown objects can ricochet and result in personal injury or property
damage.
No Blade Do not install or use any type of blade on a product displaying this
symbol.
Blade Thrust Beware of blade thrust. Products authorized for blade use will
display this symbol to warn of blade thrust.
Gasoline and Oil Use unleaded gasoline intended for motor vehicle use with an octane
rating of 87 ([R + M] / 2) or higher. This product is powered by a
2-cycle engine and requires pre-mixing gasoline and 2-cycle oil.
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Symbols
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Symbols
The following signal words and meanings are intended to explain the levels of risk associated with this
product.
SYMBOL SIGNAL MEANING
DANGER: Indicates an imminently hazardous situation, which, if not avoided, will
result in death or serious injury.
WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result
in minor or moderate injury.
CAUTION: (Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SERVICE
Servicing requires extreme care and knowledge and should
be performed only by a qualied service technician. For
service we suggest you return the product to your nearest
AUTHORIZED SERVICE CENTER for repair. When
servicing, use only identical replacement parts.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your
eyes, which can result in severe eye damage. Before beginning power tool operation,
always wear safety goggles or safety glasses with side shields and, when needed, a full
face shield. We recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye protection which is marked to
comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
WARNING:
To avoid serious personal injury, do not attempt
to use this product until you read thoroughly and
understand completely the operator’s manual. Save
this operator’s manual and review frequently for
continuing safe operation and instructing others who
may use this product.
Symbols
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Product Labels
50' 15m
50' 15m
50' 15m
I
Product labels and instructions are easily visible to the operator and are located near any area of potential danger.
Replace damaged or lost labels.
Part No. 986178-001
Part No. 985102-001
Part No. 984032-001
Part No. 984105-001
OFF ON
8
Part No. 983961-001 (Shoulder Strap)Part No. 984240-001
Product Labels
Page 9
Features
Product Specifications
Engine 25.4 cc Full Crank
Cutting Width
Model No. ZR51950A 17 in.
Model No. ZR51970A 18 in.
Model No. ZR51990A 8 in. for brushcutter, 18 in. for trimmer
Line Size .095 in.
Weight
Model No. ZR51950A 12-1/2 lbs.
Model No. ZR51970A 13-1/2 lbs.
Model No. ZR51990A 13-1/2 lbs.
Know Your Trimmer/Brushcutter
See Figure 1.
Before attempting to use this product, familiarize yourself
with all operating features and safety rules.
Common Features
Engine
The engine is powerful and easy to start. It is effectively
counterbalanced, which allows for less vibration and more
durability.
Ergonomic Design
The design of the product provides for easy handling. It is
designed for comfort and ease of grasp when operating in
different positions and at different angles.
Curved/Straight Shaft Features
(Model No. ZR51950A/ZR51970A)
Dual Line
The dual line permits more efcient cutting than a single
line.
Grass Deflector
The grass deector helps protect you from ying debris.
Brushcutter Features
(Model No. ZR51990A)
Blade
The Tri-Arc® blade allows you to brushcut weeds, vines
and light brush.
Brushcutter Guard
The brushcutter guard helps protect you from the blade and
from ying debris.
Shoulder Strap
The brushcutter includes a shoulder strap that helps support
the product.
Barrier Bar
The handle on the brushcutter contains a barrier bar that
restrains the operator in position and maintains a proper
distance between the operator and the blade.
Features
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Curved Shaft Trimmer
(Model No. ZR51950A)
Dual
Line
Grass
Barrier
Front Handle
Curved Shaft
Grass Deflector
Engine
Trigger
Handle
Straight Shaft Trimmer
(Model No. ZR51970A)
Front Handle
Engine
Grass Deflector
Blade
Brushcutter
Guard
Straight Shaft
Trigger
Handle
Brushcutter
(Model No. ZR51990A)
Front Handle
Engine
Shoulder
Strap
Features
10
Barrier
Bar
Trigger
Handle
Figure 1
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Assembly
Unpacking
■ Carefully remove the product from the box.
■ Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
■ Do not discard the packing material until you have
carefully inspected and satisfactorily operated the product.
■ If any parts are damaged or missing, please call toll free
1-800-860-4050 for assistance.
Packing List
Upper shaft (Power head) (1)
Attachment shaft (Cutting head) (1)
Handle (1)
Curved shaft grass deector (1) (Model No. ZR51950A)
Straight shaft grass deector (1) (Model No. ZR51970A and
Model No. ZR51990A)
Grass barrier (Model No. ZR51950A)
Hex head cap screw - 1/4-20 x 2 in. (1)
(Model No. ZR51950A)
Lock washer (1) (Model No. ZR51950A)
Flat washer (1) (Model No. ZR51950A)
Wing nut (1) (Model No. ZR51950A)
Oil
Head locking tool (1) (Model No. ZR51990A)
Shoulder strap (1) (Model No. ZR51990A)
Storage cap
WARNING:
If any parts are missing, do not operate the
product until the missing parts are replaced.
Failure to do so could result in serious personal
injury.
WARNING:
Do not attempt to modify this tool or create
accessories not recommended for use with this
tool. Any such alteration or modication is
misuse and could result in a hazardous condition
leading to possible serious personal injury.
WARNING:
Do not start trimmer until assembly is complete.
Failure to comply could result in accidental
starting and possible serious personal injury.
Assembly
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Connecting the Attachment to the
Upper Shaft
See Figure 2.
Follow these steps to connect the attachment to the upper
shaft.
1. Loosen the knob by turning it counterclockwise.
2. Remove the end cap from the attachment shaft.
3. Align the button on the attachment shaft with the guide
recess on the upper shaft.
4. Slide the attachment shaft into the upper shaft until the
attachment shaft clicks into place.
Note: You may need to turn the attachment shaft to
properly align the two shafts.
5. Tighten the knob securely by turning it clockwise.
Upper
Shaft
3. Place the handle along the upper shaft to a position that
allows for comfortable operation.
4. Place the handle support on the bottom of the tube on
the opposite side of the front handle.
5. Secure the handle with the slotted Torx™ screws.
Slotted
Torx
Screw
Front
Handle
Trigger
Handle
Barrier Bar
(Model No.
ZR51990A)
Guide
Recess
Button
Knob
Attachment
Shaft
Figure 2
Removing the Attachment from the
Upper Shaft
See Figure 2.
Follow these steps to remove the attachment from the upper
shaft.
1. Loosen the knob by turning it counterclockwise.
2. Push the button while pulling out the attachment.
Attaching the Front Handle
See Figure 3.
Follow these steps to attach the front handle.
1. Remove the slotted Torx™ screws to separate the
handle from the handle support.
2. Press the handle onto the top of the upper shaft, no
less than 10 in. (25.4 cm) from the center of the trigger
handle, angling the handle toward the trigger handle.
Handle
Support
Figure 3
Attaching the Shoulder Strap
Model No. ZR51990A
See Figure 4.
Follow these steps to attach the shoulder strap.
1. Connect the latch on the strap to the hanger bracket.
2. Adjust the strap to a comfortable position.
Note: To quickly release the product from the shoulder
strap, sharply pull the quick release tab.
Strap
Quick
Release
Tab
Hanger
Bracket
Latch
Figure 4
Assembly
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Attaching the Grass Deflector
Attaching the grass deector differs depending on the type
of trimmer: curved shaft or straight shaft.
WARNING:
The line cutting blade on the grass deector
is sharp. Avoid contact with the blade. Failure
to avoid contact can result in serious personal
injury.
Note: To protect the operator, always be sure to attach the
grass deector.
To Attach the Curved Shaft Grass Deflector
Model No. ZR51950A
See Figure 5.
Follow these steps to attach the curved shaft grass deector.
1. Press the grass deector onto the bottom of the curved
shaft as shown.
2. Lift the grass barrier up slightly.
3. Insert the hex head cap screw through the grass deec-
tor, bracket, and grass barrier.
4. Place the at washer and lock washer on the hex head
cap screw.
5. Place the wing nut or hex nut on the hex head cap screw
and turn clockwise to secure.
To Attach the Straight Shaft Grass Deflector
Model No. ZR51970A and Model No. ZR51990A
See Figure 6.
Follow these steps to attach the straight shaft grass deector.
1. Remove the slotted hex head screw from the grass
deector.
2. Insert the tab on the mounting bracket in the slot on the
grass deector.
3. Align the screw hole in the mounting bracket with the
screw hole in the grass deector.
4. Insert the slotted hex head screw through the mounting
bracket and into the grass deector.
5. Tighten the screw securely.
Tab
Straight Shaft
Grass Deflector
Slot
Curved Shaft
Grass Deflector
Line
Cutting
Blade
Bracket
Hex Head
Cap Screw
Lock
Washer
Flat
Washer
Grass
Barrier
Wing
Nut
Figure 5
Figure 6
Assembly
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Converting From Brushcutter To
Trimmer
Model No. ZR51990A
To convert from the brushcutter to the trimmer, remove the
blade, remove the brushcutter guard, attach the grass deector, and install the trimmer head assembly.
To Remove the Blade and Brushcutter Guard
See Figure 7 and Figure 8.
Follow these steps to remove the blade and brushcutter
guard.
1. Align the slot in the anged washer with the slot in the
gear head.
2. Place the head locking tool through the slot in the
anged washer and gear head.
3. Remove the blade nut by turning it clockwise (left-
handed threads).
4. Remove the cupped washer and the blade.
Head
Locking
Tool
Gear Head
Slot
Figure 7
Flanged
Washer
Blade
WARNING:
Be careful when handling the blade. It is sharp.
Failure to heed this warning can result in serious
personal injury.
5. Remove the anged washer from the gear shaft and
retain it for the trimmer head assembly installation.
6. Remove the three screws securing the brushcutter
guard.
7. Remove the brushcutter guard.
Note: Store the brushcutter parts together for future
use.
To Attach the Grass Deflector
Refer to “To Attach the Straight Shaft Grass Deector”
earlier in this manual.
To Install the Trimmer Head Assembly
See Figure 9.
Follow these steps to install the trimmer head assembly.
1. Align the slot in the anged washer with the slot in the
gear head.
2. Insert the head locking tool through the anged washer
and gear head.
3. Install the drive shaft and trimmer head assembly onto
the gear shaft by turning the drive shaft counterclockwise (left-handed threads).
4. Tighten the drive shaft securely.
Brushcutter
Guard
Gear
Head
Slot
Cupped
Washer
Flanged
Washer
Blade Nut
Drive
Shaft
Figure 8
Trimmer
Head
Assembly
Figure 9
Assembly
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Converting From Trimmer To Brushcutter
Model No. ZR51990A
To convert from the trimmer to the brushcutter, remove the
trimmer head assembly, remove the grass deector, attach
the brushcutter guard, and install the blade.
To Remove the Trimmer Head Assembly and Grass
Deflector
See Figures 10 and 11.
Follow these steps to remove the trimmer head assembly
and grass deector.
1. Align the slot in the anged washer with the slot in the
gear head.
2. Insert the head locking tool through the anged washer
and gear head.
3. Remove the drive shaft and trimmer head assembly by
turning the drive shaft clockwise (left-handed threads).
4. Remove the anged washer and retain it for the blade
installation.
5. Remove the screw securing the grass deector.
6. Remove the grass deector.
Note: Store the trimmer head assembly parts together
for future use.
To Attach the Brushcutter Guard
See Figure 12.
Note: To protect the operator, always be sure to attach the
brushcutter guard.
Follow these steps to attach the brushcutter guard.
1. Place the guard onto the gear head as shown.
2. Insert the three hex head screws from the bottom
through the guard into the gear head.
3. Tighten the screws securely and torque to 40-50 in.lb.
To Install the Blade
See Figure 13.
Follow these steps to install the blade.
1. Place anged washer over the gear shaft with the
hollow side toward the brushcutter guard.
2. Center the blade on the anged washer, making sure the
blade ts at and the raised hub goes through the hole
in the blade.
3. Install the cupped washer with the raised center away
from the blade.
4. Place the blade nut onto the gear shaft.
5. Insert the head locking tool through the anged washer
and gear head.
6. Install the blade nut by turning it counterclockwise
(left-handed threads).
7. Tighten the blade nut and torque to 120 in.lb. minimum
(nger tight plus 1/2 turn).
Gear
Head
Brushcutter
Guard
Brushcutter
Guard
Head
Locking
Tool
Slot
Grass Deflector
Flanged
Washer
Straight Shaft
Gear Shaft
Flanged
Washer
Cupped
Washer
Drive
Shaft
Gear Head
Hex Head
Screw
Figure 10
Trimmer
Head
Assembly
Figure 11
Figure 12
Blade
Blade Nut
Figure 13
Assembly
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17
Operation
WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of a
second is sufcient to inict serious injury.
WARNING:
Always wear safety goggles or safety glasses
with side shields when operating power tools.
Failure to do so could result in objects being
thrown into your eyes resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this tool.
The use of attachments or accessories not rec-
ommended can result in serious personal injury.
50:1 Gasoline to Oil Mixing Chart
Gasoline Oil
1/2 US gallon 1.3 oz.
1 US gallon 2.6 oz.
2 US gallons 5.2 oz.
1 liter 20 ml
2 liters 40 ml
3 liters 60 ml
4 liters 80 ml
5 liters 100 ml
+ =
Filling the Tank
Applications
Use this product for the following applications:
■ Cutting grass, weeds, and light undergrowth
(all models)
■ Edging along sidewalks and driveways (all models)
■ Cutting pulpy weeds, vines, and light brush
(Model No. ZR51990A)
Mixing the Fuel
DANGER:
Gasoline is extremely ammable and explosive.
A re or explosion from gasoline will burn you
and others.
This product is powered by a 2-cycle engine and requires premixing gasoline and 2-cycle oil. The oil mix should be 50:1,
using oil that meets or exceeds JASO-FC specications.
Follow these steps to mix the fuel.
1. Obtain a clean container that is approved for use with
gasoline.
2. Mix the 2-cycle engine oil provided with unleaded
gasoline in the container, according to the instructions
on the oil carton.
Important: This engine is certied to operate on unleaded
gasoline intended for automotive use with an octane rating
of 87 ([R + M] / 2) or higher. Do not use automotive oil or
2-cycle outboard oil. Store the container out of the reach of
children.
WARNING:
Always stop the engine before lling the tank.
Never add fuel to a machine with a running or
hot engine. Move at least 30 ft. (9 m) away from
the refueling site before starting the engine. Do
not smoke while lling the tank.
Follow these steps to ll the tank.
1. Clean the surface around the fuel cap to prevent con-
tamination.
2. Loosen the fuel cap by turning it counterclockwise.
3. Pour the fuel mixture carefully into the tank.
4. Clean and inspect the gasket.
Note: Replace the fuel cap if the gasket is damaged.
5. Install the fuel cap and tighten it by turning it clock-
wise.
WARNING:
Check for fuel leaks. If you nd any leaks, correct
the problem before using the product.
6. Wipe spilled fuel from the product.
7. Move at least 30 ft. (9 m) away before starting the
product.
Note: It is normal for the engine to emit smoke during
use.
Operation
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Page 17
WARNING:
The product may throw objects during operation, causing injury to the operator or to bystanders. Always wear suitable eye protection,
long heavy pants, and boots while operating the
product.
Starting/Stopping the Product
See Figure 14a, Figure 14b, Figure 14c and Figure 15.
To start an engine that is cold or has run dry:
1. Fill the fuel tank, if necessary. Always use the proper
oil/gasoline mixture. See “Mixing the Fuel” on page 17.
2. Place the engine switch in the RUN ( | ) position.
Note: Do not engage the throttle lever during the start-
ing process.
3. Slowly push the primer bulb seven times.
Note: If restarting a warm engine, do not push the
primer bulb.
4. Set the start lever to the START position.
Note: If restarting a warm engine, leave the choke in
the RUN position.
5. Pull the starter cord until the engine runs.
6. Return the starter cord gently to the starter housing. Do
not allow the rope to snap back.
7. Allow the engine to run for 15 seconds to warm up
before using.
8. Engage the throttle lever to operate.
Primer
Bulb
Start
Lever
Start
Position
Figure 14b
Start
Lever
Run
Positon
Figure 14c
Switch
Trigger
Lock-off
Button
Primer
Bulb
Starter
Cord
Figure 14a
Stopping the Product
See Figure 15.
1. Release the throttle lever.
2. Move the engine switch to the OFF ( O ) position.
Switch
Trigger
Figure 15
Operation
17
Page 18
19
Operating the Trimmer
Operating the trimmer differs, depending on whether you are
using the curved shaft trimmer or the straight shaft trimmer.
WARNING:
Always hold the string trimmer away from the
body, keeping clearance between the body and
the product. Any contact with the housing or
string trimmer cutting head can result in burns
and/or other serious personal injury.
To Operate the Curved Shaft Trimmer
(Model No. ZR51950A)
See Figure 16a.
Follow these steps to operate the curved shaft trimmer.
1. Start the trimmer.
2. Hold the trimmer at waist level with your right hand
on the trigger handle and your left hand on the front
handle.
3. Place the product on the right side of your body with
the engine behind and away from your body.
4. Trim grass and weeds in a right-to-left motion with the
line parallel to the ground.
PROPER OPERATING
POSITION
PROPER OPERATING
POSITION
Figure 16b
To Advance the Cutting Line
See Figure 16c.
Follow these steps to advance the cutting line.
1. Start the trimmer.
2. Tap the retaining cap lightly on the ground while the
motor is running. The line will only advance with the
engine at full throttle. Do not hold the retaining cap
on the ground.
Note: The line cutting blade on the grass deector will
cut the line to the proper length.
Note: To help prevent line tangle, tap only once to
lengthen the line. If additional line is required, wait a
few seconds before retapping the retaining cap. Do not
allow the line to wear too short. Keep the cutting line at
full length.
To Operate the Straight Shaft Trimmer
(Model No. ZR51970A)
See Figure 16b.
Follow these steps to operate the straight shaft trimmer.
1. Start the trimmer.
2. Hold the trimmer at waist level with your right hand
on the trigger handle and your left hand on the front
handle.
3. Place the product on the right side of your body with
the engine behind and away from your body.
4. Trim grass and weeds in a left-to-right motion with the
line parallel to the ground.
Operation
18
Figure 16a
Retaining
Cap
Figure 16c
Page 19
Operating the Brushcutter
(Model No. ZR51990A)
See Figure 17.
Follow these steps to operate the brushcutter.
1. Start the brushcutter.
2. Hold the brushcutter at waist level with your right hand
(arm extended) on the trigger handle and your left hand
on the front handle.
3. Place the product on the right side of your body with
the engine behind and away from your body.
4. Brushcut weeds and vines in a right-to-left motion with
the blade parallel to the ground.
Dangerous
Cutting Area
Curved Shaft Trimmer
Direction of
Rotation
PROPER OPERATING
POSITION
Figure 17
Cutting Tips
See Figures 18 and 19.
1. Avoid hot surfaces by always keeping the tool away
from your body. (Proper operating position is shown in
Figures 16a, 16b and 17.)
2. Keep the trimmer tilted toward the area being cut; this
is the best cutting area.
3. The curved shaft trimmer cuts when passing the unit
from right to left. the straight shaft trimmer cuts when
passing the unit from left to right. This will avoid
throwing debris at the operator. Avoid cutting in the
dangerous area shown in gures 18 and 19.
4. Use the tip of string to do the cutting; do not force
string head into uncut grass.
5. Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs and wood may
wear string rapidly.
6. Avoid trees and shrubs. Tree bark, wood moldings, siding and fence posts can easily be damaged by the string.
Direction of
Rotation
Best Cutting
Area
Figure 18
Straight Shaft Trimmer
Dangerous
Cutting Area
Best Cutting
Area
Figure 19
Operation
19
Page 20
21
Maintenance
Emissions Maintenance Schedule
Maintenance, replacement, or repair of the emission control device and systems may be performed by any nonroad engine repair establishment or individual.
Emission Part
Fuel Tank Assembly (Includes Fuel
Lines, Fuel Cap, and Fuel Filter)
Air Filter
Spark Arrester
Spark Plug
Inspect before
each use
X
X X
X
X
WARNING:
When servicing, use only Ryobi replacement
parts. Use of any other parts may create a hazard or cause product damage.
Cleaning the Product
■ Stop the product before cleaning.
■ Clean the exterior of the product with a damp cloth.
■ Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use.
■ Wipe or scrape the trimmer head and spool area when
they accumulate dirt or clippings.
■ Scrape debris away from air intake vents on both sides
of the motor housing.
CAUTION:
Keeping air intake vents free of grass and debris
prevents motor overheating and possible failure.
Note: Depending on the type of fuel used, the type and
amount of oil used, and/or your operating conditions,
the exhaust port and mufer may become blocked with
carbon deposits. If you notice a power loss with your
gas powered tool, you may need to remove these deposits to restore performance. We highly recommended that
only qualied service technicians perform this service.
Servicing the Product
■ Check and tighten all fasteners. If any part is damaged
or lost, repair it or replace it.
Clean every
5 hours
Replace every 25
hours or yearly
Clean every 25
hours or yearly
Replacing the Cutting Line
See Figures 20 and 21.
WARNING:
Use of line other than the proper monolament
cutting line could cause personal injury.
Follow these steps to replace the cutting line.
1. Stop the trimmer.
WARNING:
Make sure the trimmer head stops rotating.
Contact with a rotating trimmer head could
cause personal injury.
2. Remove the spark plug boot. See Figure 24.
3. Remove the retaining cap.
4. Remove the empty spool.
5. Clean the trimmer head thoroughly. Inspect the trimmer
head for any damaged or worn parts.
6. Hold the spool with the spring positioned upward.
7. Insert the end of the new line into the hole in the upper
threaded area of the spool.
8. Wind the line around the spool as indicated by the ar-
rows on the top of the spool until the line reaches the
edge of the spool. Do not wind the line beyond the
edge of the inner ring.
9. Secure the line temporarily by pushing it into one of the
slotted tabs on the spool.
10. Measure six inches of line from the slotted tab and cut
the line at that point.
Maintenance
20
Page 21
11. Repeat the process for the lower threaded area of the
spool, winding the line and securing it in the slotted tab
opposite the rst secured line.
12. Insert the lines into the eyelets on the trimmer head.
13. Place the spool on the drive shaft.
Note: To install the spool, you may need to rotate it
slightly. If the line should tangle or break at the eyelet,
remove the spool, refeed the line through the eyelets,
and reassemble the spool on the trimmer.
14. Release the lines from the tabs by sharply pulling each
line.
15. Push down on the spool to reveal the threads inside the
drive shaft.
16. Thread the retaining cap on the drive shaft.
17. Secure the retaining cap.
WARNING:
An improperly installed retaining cap or spool
could y off the trimmer. Contact with a thrown
retaining cap or spool could cause personal
injury.
18. Replace the spark plug boot. See Figure 24.
Inner Ring
Upper
Threaded Area
Follow these steps to replace the spool.
1. Stop the trimmer.
WARNING:
Make sure the trimmer head stops rotating when
you release the trigger. Contact with a rotating
trimmer head could cause personal injury.
2. Remove the spark plug boot. See Figure 24.
3. Remove the retaining cap by turning as indicated by the
arrow on the cap.
4. Remove the empty spool.
5. Clean the trimmer head thoroughly. Inspect the trimmer
head for any damaged or worn parts.
6. Remove the lines from the slotted tabs on the spool and
unwind approximately six inches.
7. Secure the lines temporarily by pushing them into the
slotted tabs on the spool.
8. Insert the lines of the new spool into the eyelets on the
trimmer head.
9. Place the spool on the drive shaft.
Note: To install the spool, you may need to rotate it
slightly.
Note: If the line should tangle or break at the eyelet,
remove the spool, refeed the line through the eyelets,
and reassemble the spool on the trimmer.
10. Release the lines from the tabs by sharply pulling each
line.
11. Push down on the spool to reveal the drive shaft.
12. Thread the retaining cap on the drive shaft.
13. Secure the retaining cap.
14. Replace the spark plug boot. See Figure 24.
Lower
Threaded Area
Replacing the Spool
See Figure 21.
Note: For best performance, use only Ryobi spools (Part
No. AR04118). The spool may wear during normal use of
the line advance feature and may require occasional replacement. Replacement spools are available through your Ryobi
retailer.
Slotted
Tab
Figure 20
Drive
Shaft
Eyelet
Trimmer
Head
Slotted
Tab
Retaining
Cap
Spool
Figure 21
Maintenance
21
Page 22
23
Checking the Fuel Cap
WARNING:
A leaking fuel cap is a re hazard and must be
replaced immediately.
The fuel cap contains a non-serviceable lter and check
valve. A clogged fuel lter causes poor engine performance.
If performance improves when the fuel cap is loosened,
the check valve may be faulty or the lter may be clogged.
Replace the fuel cap if necessary.
Cleaning the Air Filter
See Figure 22.
Clean the air lter as indicated by the maintenance schedule.
Follow these steps to clean the air lter.
1. Stop the trimmer.
WARNING:
Make sure the trimmer head stops rotating when
you release the trigger. Contact with a rotating
trimmer head could cause personal injury.
2. Remove the spark plug boot.
3. Loosen the air lter cover by turning the knob counter-
clockwise.
4. Remove the air lter cover.
5. Remove the air lter.
6. Clean the air lter with warm soapy water.
7. Rinse the air lter and let it dry completely.
8. Work two drops of oil into the air lter.
9. Replace the air lter (ts only one way).
10. Replace the air lter cover.
11. Tighten the air lter cover by turning the knob clock-
wise.
12. Replace the spark plug boot.
Note: Replace the air lter (Part No. 88048) as indi-
cated by the maintenance schedule.
Replacing the Spark Arrester
See Figure 23.
The spark arrester may need to be replaced after repeated
use. If replacement is necessary, use Ryobi part number
986179001.
To replace the spark arrester:
1. Remove the ve screws that hold the cover.
Note: Removing these screws requires the use of a T20
and T25 torx screwdriver.
2. Remove the cover.
3. Remove the mufer assembly and mufer gasket. It
may be necessary to work the mufer assembly free
from the mufer gasket.
4. Remove the three screws that hold the plates on the
mufer.
5. Remove the spark arrester.
6. Replace the old spark arrester with the new one.
7. Reassemble the mufer by reinstalling the plates and
tightening the three screws.
8. Reassemble the mufer and mufer cover and attach to
the mufer gasket with the two screws.
9. Reinsert the mufer assembly.
10. Reinstall the cover on the tool and fasten with the ve
screws.
Note: Do not overtighten screws.
Cover
Screw(s)
Muffler
Cover
Air Filter
Air
Filter
Cover
Maintenance
22
Knob
Figure 22
Muffler
Gasket
Muffler
Spark
Arrester
Screw(s)
Plates
Screw(s)
Figure 23
Page 23
Replacing the Spark Plug
See Figure 24.
All model numbers included in this manual use an
NGK BPMR7A or Champion RCJ-6Y spark plug. Use an
exact replacement and replace annually.
1. Remove the spark plug boot.
2. Loosen the spark plug by turning it counterclockwise
with a socket.
3. Remove the spark plug.
4. Hand thread the new spark plug, turning it clockwise.
5. Tighten with a socket and torque to 170 in.lb. mini-
mum, 190 in.lb. maximum. Do not over tighten.
CAUTION:
Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the
product.
Spark Plug Boot
Spark
Plug
Storing the Product
Storing the product differs depending on the amount of time
it will be in storage.
Note: If the product includes another attachment, place the
storage cap on the end of the attachment shaft and hang it up
to store.
To Store the Product Short Term
Follow these steps to store the product short term.
1. Clean all foreign material from the product.
2. Store the product in a well-ventilated place that is inac-
cessible to children.
To Store the Product Long Term
If you do not intend to use the product for more than one
month, follow the storage procedures below.
Follow these steps to store the product long term.
1. Drain all of the fuel from the tank into a container ap-
proved for gasoline.
2. Run the engine until it stops.
3. Clean all foreign material from the product.
4. Store the product in a well-ventilated place that is inac-
cessible to children.
Note: Keep the product away from corrosive agents
such as garden chemicals and de-icing salts.
Important: Abide by all federal and local regulations
for the safe storage and handling of gasoline.
Transporting the Product
Follow these steps to transport the product.
1. Drain the fuel mixture into a container that is approved
for use with gasoline.
2. Carry the product by the front handle.
3. Secure the product in your vehicle or on a trailer.
Figure 24
Maintenance
23
Page 24
25
Troubleshooting
Problem Possible Cause Solution
Engine will not start
1. Switch set to the O (OFF)
position.
2. No spark
3. No fuel
4. Flooded engine
5. Starter cord pulls harder now
then when new
1. Set switch to the I (ON) position.
2. Remove the spark plug. Reattach the spark
plug cap and lay the spark plug on the metal
cylinder. Pull the starter cord and watch for a
spark at the spark plug tip. If there is no spark,
repeat the test with a new spark plug.
3. Push primer bulb until the bulb is full of fuel.
If the bulb does not ll, the primary fuel delivery system is blocked. If the primer bulb lls,
the engine may be ooded. (See next item.)
4. Remove the spark plug. Turn the product so
that the spark plug hole is aimed at the ground.
Make sure the start lever is set to RUN
and pull the starter cord 10 to 14 times. This
clears excess fuel from the engine. Clean and
reinstall the spark plug. With the trigger fully
depressed, pull the starter cord 3 times. If the
engine does not start, set the start lever to
START and follow normal starting instruc-
tions. If the engine still fails to start, repeat the
procedure with a new spark plug.
5. Contact an authorized service dealer.
Engine does not reach full speed
and emits excessive smoke
Line will not advance when using automatic line lengthening
Retaining cap hard to turn when
using automatic line lengthening
Grass wraps around the trimmer head assembly and the
attachment shaft
Oil drips from mufer
1. Check oil fuel mixture
2. Air lter is dirty
3. Spark arrestor screen is dirty
1. Line welded to itself
2. Not enough line on the spool
3. Line worn too short
4. Line tangled on spool
5. Engine speed too slow
Screw threads are dirty or
damaged
1. Cutting tall grass at ground
level
2. Operating the product at part
throttle
1. Operating the product at part
throttle
2. Check oil/fuel mixture
3. Air lter is dirty
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean the air lter.
3. Clean the spark arrester.
1. Lubricate with silicone spray.
2. Install more line.
3. Pull line while alternately pressing down on
and releasing the retaining cap.
4. Remove line from spool and rewind.
5. Advance line at full throttle.
Clean the threads and lubricate with grease. If this
does not solve the problem, replace the retaining cap.
1. Cut tall grass from the top down.
2. Operate the product at full throttle.
1. Operate the product at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean the air lter.
Troubleshooting
24
Page 25
Warranty
LIMITED WARRANTY STATEMENT
Ryobi Technologies, Inc. warrants to the original retail
purchaser that this Ryobi Technologies, Inc. product
is free from defect in material and workmanship and
agrees to repair or replace, at Ryobi Technologies, Inc.’s
discretion, any defective product free of charge within
these time periods from the date of purchase.
�n One year if the product is used for personal, family
or household use;
�n 90 days, if used for any other purpose, such as
commercial or rental.
This warranty extends to the original retail purchaser
only and commences on the date of the original retail
purchase.
Any part of the Ryobi Technologies, Inc. product
manufactured or supplied by Ryobi Technologies, Inc. and
found in the reasonable judgment of Ryobi Technologies,
Inc. to be defective in material or workmanship will be
repaired or replaced by an authorized Ryobi Technologies,
Inc. service dealer without charge for parts and labor.
The product, including any defective part, must be
returned to an authorized service dealer within the
warranty period. The expense of delivering the Ryobi
Technologies, Inc. product to the dealer for warranty work
and the expense of returning it back to the owner after
repair or replacement will be paid by the owner. Ryobi
Technologies, Inc.’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 Technologies, Inc. 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 Technologies, Inc. service dealer.
This warranty is limited to ninety (90) days from the date
of original retail purchase for any Ryobi Technologies, Inc.
product that is used for rental or commercial purposes,
or any other income-producing purpose.
This warranty does not cover any Ryobi Technologies,
Inc. 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 this operator’s manual. This warranty does not apply
to any damage to the Ryobi Technologies, Inc. product
that is the result of improper maintenance or to any
Ryobi Technologies, Inc. product that has been altered
or modified. 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 TECHNOLOGIES, INC. product or adversely
affect its operation, performance, or durability.
In addition, this warranty does not cover:
A. Tune-ups – Spark Plugs, Carburetor, Carburetor
Adjustments, Ignition, Filters
B. Wear items – Bump Knobs, Outer Spools, Cutting
Lines, Inner Reels, Starter Pulleys, Starter Ropes,
Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching
Blades, Blower Fans, Blower and Vacuum Tubes,
Vacuum Bag and Straps, Guide Bars, Saw Chains
Ryobi Technologies, Inc. reserves the right to change
or improve the design of any Ryobi Technologies, Inc.
product without assuming any obligation to modify any
product previously manufactured.
ALL IMPLIED WARRANTIES ARE LIMITED IN
DURATION TO THE STATED WARRANTY PERIOD.
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,
ONE-YEAR, OR NINETY DAY WARRANTY PERIOD.
RYOBI TECHNOLOGIES, INC.’S OBLIGATION UNDER
THIS WARRANTY IS STRICTLY AND EXCLUSIVELY
LIMITED TO THE REPAIR OR REPLACEMENT OF
DEFECTIVE PARTS AND RYOBI TECHNOLOGIES,
INC.DOES NOT ASSUME OR AUTHORIZE ANYONE
TO ASSUME FOR THEM ANY OTHER OBLIGATION.
SOME STATES DO NOT ALLOW LIMITATIONS
ON HOW LONG AN IM PLI ED WARRA NTY
LASTS, SO THE ABOVE LIMITATION MAY NOT
APPLY TO YOU. RYOBI TECHNOLOGIES, INC.
ASSUMES NO RESPONSIBILITY FOR INCIDENTAL,
CONSE QUE NTI AL, OR O THE R DA MAGES
INCLUDING, BUT NOT LIMITED TO, EXPENSE
OF RETURNING THE RYOBI TECHNOLOGIES,
INC. 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 PROPERLY, 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 Technologies, Inc.
products manufactured by Ryobi Technologies, Inc.
and sold in the United States and Canada.
To locate your nearest service dealer, dial 1-800-860-4050.
Warranty
25
Page 26
27
Warranty
THE FOLLOWING CALIFORNIA AIR RESOURCES BOARD (CARB) STATEMENT ONLY AP-
PLIES TO MODEL NUMBERS REQUIRED TO MEET THE CARB REQUIREMENTS.
RYOBI TECHNOLOGIES, INC. LIMITED WARRANTY FEDERAL AND CALIFORNIA
EMISSION CONTROL SYSTEMS NON-ROAD AND SMALL OFF-ROAD ENGINES
The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Ryobi Technologies, Inc. are
pleased to explain the Emission Control System Warranty on your non-road or 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. In other states, new
2000 and later model year non-road engines must be designed, built, and equipped, at the time of sale, to meet the U.S. EPA
regulations for small non-road engines. The non-road engine must be free from defects in materials and workmanship which
cause it to fail to conform with U.S. EPA standards for the first two years of engine use from the date of sale to the ultimate
purchaser. Ryobi Technologies, Inc. must warrant the emission control system on your non-road or small off-road engine for
the period of time listed above provided there has been no abuse, neglect, or improper maintenance of your non-road or small
off-road engine.
Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, and the
catalytic converter. Also included may be hoses, belts and connectors, and other emission related assemblies.
Where a warrantable condition exists, Ryobi Technologies, Inc. will repair your non-road or small off-road engine at no cost to
you, including diagnosis (if the diagnostic work is performed at an authorized dealer), parts, and labor.
MANUFACTURER’S WARRANTY COVERAGE:
The 1995 and later small off-road engines are warranted for two years in California. In other states, 1997 and later model year
non-road engines are also warranted for two years. If any emission-related part on your engine is defective, the part will be
repaired or replaced by Ryobi Technologies, Inc. free of charge.
OWNER’S WARRANTY RESPONSIBILITIES
(a) As the non-road or small off-road engine owner, you are responsible for the performance of required maintenance listed in your
operator’s manual. Ryobi Technologies, Inc. recommends that you retain all receipts covering maintenance on your non-road or
small off-road engine, but Ryobi Technologies, Inc., cannot deny warranty solely for the lack of receipts or for your failure to ensure
the performance of all scheduled maintenance. Any replacement part or service that is equivalent in performance and durability
may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer.
(b) As the non-road or small off-road engine owner, you should be aware, however, that Ryobi Technologies, Inc., may deny you
warranty coverage if your non-road or small off-road engine or a part has failed due to abuse, neglect, improper maintenance, or unapproved modifications.
(c) You are responsible for presenting your non-road or small off-road engine to a Ryobi Technologies, Inc., service dealer 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 contact a Ryobi Technologies, Inc.,
Customer Representative at 1-800-860-4050.
COVERAGE:
Ryobi Technologies, Inc. warrants to the ultimate purchaser and each subsequent purchaser that your non-road or small off-road
engine will be designed, built, and equipped, at the time of sale, to meet all applicable regulations. Ryobi Technologies, Inc. also
warrants to the initial purchaser and each subsequent purchaser that your non-road or small off-road engine is free from defects in
materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years. The 1995
and later small off road engines are warranted for two years in California. In all other states for 1997 and later model years, EPA requires
manufacturers to warrant non-road engines for two years. These warranty periods will begin on the date the non-road or small
off-road engine is purchased by the initial purchaser. If any emission-related part on your engine is defective, the part will be
replaced by Ryobi Technologies, Inc. at no cost to the owner.
Ryobi Technologies, Inc. shall remedy warranty defects at any authorized Ryobi Technologies, Inc. engine dealer or warranty station. Any authorized work done at an authorized dealer or warranty station shall be free of charge to the owner if such work determines that a warranted part is defective. Any manufacturer-approved or equivalent replacement part may be used for any warranty
maintenance or repairs on emission-related parts, and must be provided free of charge to the owner if the part is still under warranty.
Ryobi Technologies, Inc. is liable for damages to other engine components caused by the failure of a warranted part still under warranty.
The California Air Resources Board’s Emission Warranty Parts List specifically defines the emission-related warranted parts.
(EPA’s regulations do not include a parts list, but EPA considers emission-related warranted parts to include all the parts listed
below.)
These warranted parts are: Carburetor, Spark Plug, Ignition, Air Filter, and Fuel Filter.
MAINTENANCE REQUIREMENTS
The owner is responsible for the performance of the required maintenance as defined by Ryobi Technologies, Inc. in the
operator’s manual.
LIMITATIONS
The Emission Control Systems Warranty shall not cover any of the following:
(a) repair or replacement required because of misuse or neglect, lack of required maintenance, repairs improperly performed
or replacements not conforming to Ryobi Technologies, Inc. specifications that adversely affect performance and/or durability, and alterations or modifications not recommended or approved in writing by Ryobi Technologies, Inc., and
(b) replacement of parts and other services and adjustments necessary for required maintenance at and after the first sched-
uled replacement point.
The Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for
which the engine has been shown to meet Federal emission requirements. Category C=50 hours, B=125 hours, and A=300
hours.
Warranty
26
Page 27
Warranty
THIS PRODUCT WAS MANUFACTURED WITH A CATALYST MUFFLER
Congratulations! You have made an investment toward protecting the environment. In order to maintain this
product’s original emission level, please refer to the maintenance section below.
EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST
Emissions Parts Inspect Before Clean Every Replace Clean Every Replace Every
Each Use 5 Hours Every 25 Hours 25 Hours 50 Hours
or Yearly or Yearly
CATALYTIC MUFFLER ASSEMBLY ................................................................................................................... X
AIR FILTER ASSY
includes:
Filter ................................................................. X............................. X
SPARK SCREEN ..................................................................................................................X
CARBURETOR ASSY
includes:
Heat Dam
Gaskets
FUEL TANK ASSY
includes:
Fuel Lines........................ X
Fuel Cap.......................... X
Fuel Filter
IGNITION ASSY
includes:
Spark Plug........................................................................................ X
ALL EMISSIONS RELATED PARTS ARE WARRANTED FOR ONE YEAR OR FOR THE PERIOD OF TIME PRIOR TO
THE PARTS FIRST SCHEDULED REPLACEMENT WHICHEVER COMES FIRST.
27
Page 28
Customer Service Information
If your product requires service or maintenance, contact your nearest authorized service
dealer. To locate your nearest authorized service dealer for this product, contact us toll
free at 1-800-860-4050.
RYOBI TECHNOLOGIES, INC.
1428 Pearman Dairy Road Anderson, SC 29625
Post Office Box 1207. Anderson, SC 29622-1207
Phone 1-800-860-4050
www.ryobitools.com
983000-899
10-19-05 (REV:00)
28
Warranty
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