Troy-Bilt TB25CB User manual

769-25562 / 00 06/20
Trimmer
(2-Cycle, 25 cc)
Operator’s Manual
IMPORTANT: Read this manual thoroughly before using this product. Follow all instructions.
SAVE THESE INSTRUCTIONS
Taille-bordure
(2 Temps, 25 cc)
Manuel de l’utilisateur
IMPORTANT : Lisez attentivement ce manuel avant d'utiliser ce produit. Respectez toutes
les instructions.
CONSERVEZ CES INSTRUCTIONS
Desbrozadora
(2 Tiempos, 25 cc)
Manual del Operador
IMPORTANTE: Lea este manual por completo antes de utilizar este producto. Siga todas las
instrucciones.
CONSERVE ESTAS INSTRUCCIONES

2
English (Original Instructions). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Français (Traduction des instructions d’origine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Español (Traducción de las instrucciones originales). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
WARNING:This product can expose you to chemicals including
engine exhaust, which is known to the State of California to cause cancer, and
carbon monoxide, which is known to the State of California to cause birth
defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
AVERTISSEMENT :Ce produit peut vous exposer à des
produits chimiques, notamment les gaz d'échappement du moteur reconnus par
l'État de Californie comme étant cancérogène, et le monoxyde de carbone,
reconnu par de l'État de Californie comme provoquant des malformations
congénitales ou d'autres problèmes de reproduction. Pour en savoir plus,
consultez le site www.P65Warnings.ca.gov.
ADVERTENCIA:Este producto puede exponerlo a productos
químicos, incluidos gases de escape del motor, indicados por el estado de
California como causantes de cáncer, y monóxido de carbono, indicado por el
estado de California como causante de defectos de nacimiento u otros daños
reproductivos. Para obtener más información, visite: www.P65Warnings.ca.gov.

3
TABLE OF CONTENTS
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Oil and Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Starting and Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
All information, illustrations, and specications 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.
The product may vary slightly from the illustrations contained in this manual.
NOTE: This operator's manual covers multiple models. Features may vary by model. Not all features in
this manual are applicable to all models. The model depicted may dier from yours.

4
SAFETY
SPARK ARRESTOR NOTE
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 eective working order, or the engine
be constructed, equipped and maintained for the prevention of re. 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 ne. This
unit is factory equipped with a spark arrestor. If it requires replacement, contact
your local service dealer to install the appropriate muer assembly.
Read the operator’s manual and follow all warnings and safety instructions. Failure to
do so can result in serious injury to the operator and/or bystanders.
SYMBOL MEANING
WARNING:Signals a SERIOUS hazard.
Failure to obey a safety WARNING symbol CAN result in serious injury to yourself
or to others.
CAUTION:Signals a MODERATE hazard.
Failure to obey a safety CAUTION symbol MAY result in property damage or
injury to yourself or to others.
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.
NOTE: Advises you of information or instructions vital to the operation or maintenance of
the equipment.
DANGER:Signals an EXTREME hazard.
Failure to obey a safety DANGER symbol WILL result in serious injury or death to
yourself or to others.

5
• IMPORTANT SAFETY INSTRUCTIONS •
READ ALL INSTRUCTIONS BEFORE OPERATING
• Read the instructions carefully. Be familiar with the controls and proper use of the unit.
Know how to stop the unit and disengage the controls quickly.
• Stay alert. Do not operate this unit when tired, ill or under the inuence of alcohol,
drugs or medication.
• Never allow children to operate the unit. Teens must be trained, accompanied and
supervised by an adult. Never allow adults to operate the unit without proper instruction.
• All guards and safety attachments must be installed properly before operating the unit.
• Inspect the unit before use. Check for damaged parts. Check for fuel leaks. Make sure all
parts operate properly. Make sure all fasteners are in place and secure. Make sure all
moving parts are properly aligned and are not bound. Replace parts that are cracked,
chipped, or damaged in any way. Have all damaged or improperly working parts
repaired or replaced by an authorized service center. Do not operate the unit with loose
or damaged parts.
• Be aware of risk of injury to the head, hands and feet.
• Carefully inspect the area before starting the unit. Remove rocks, broken glass, nails,
wire, string and other objects that may be thrown or become entangled with the unit.
• Clear the area of children, bystanders and pets; keep them outside a 50-foot (15 m)
radius, at a minimum. Even then, they are still at risk from thrown objects. Encourage
bystanders to wear eye protection. If you are approached, stop the unit immediately.
• Squeeze the throttle control and check that it returns automatically to the idle position.
Make all adjustments or repairs before using the unit.
• Do not change the engine governor settings or overspeed the engine.
• This unit is intended for occasional, household use only.
WARNING:When using the unit, all safety instructions must be
followed. Please read these instructions before operating the unit in order to
ensure the safety of the operator and any bystanders. Please keep these
instructions for later use.

6
SAFETY WARNINGS FOR GAS UNITS
• Store fuel only in containers specically designed and approved for the storage of such
materials.
• Always stop the engine and allow it to cool before lling the tank. Never remove the
fuel tank cap or add fuel when the engine is hot. Always loosen the fuel tank cap slowly
to relieve any pressure in the tank before fueling.
• Always mix and add fuel in a clean, well-ventilated outdoor area where there are no
sparks or ames. DO NOT smoke.
• Never operate the unit without the fuel cap securely in place.
• Avoid creating a source of ignition for spilled fuel. Wipe up any spilled fuel from the unit
immediately, before starting the unit. Move the unit at least 30 ft. (9.1 m) from the
fueling source and site before starting the engine. DO NOT smoke.
• 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 outdoor area.
WARNING:Gasoline is highly ammable and its vapors can
explode if ignited. Take the following precautions:
WHILE OPERATING
• Wear safety glasses or goggles that meet current ANSI / ISEA Z87.1 standards and are
marked as such. Wear ear/hearing protection when operating this unit. Wear a face
mask or dust mask if the operation is dusty.
• Wear heavy long pants, boots, gloves and a long sleeve shirt. Do not wear loose
clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level.
• Adjust the handle to provide the best grip, if applicable.
• Use the unit only in daylight or good articial 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. Refer to Starting and Stopping.
• Use the right tool. Only use this tool for its intended purpose. Only use the unit as
described in this manual.
• Always hold the unit with both hands when operating. Keep a rm grip on both
handles or grips.
• Do not overreach. Always keep proper footing and balance. Take extra care when
working on stairs, steep slopes or inclines. To avoid serious injury, do not operate the
unit while on a ladder or a roof.
• Keep hands, face, and feet away from all moving parts. Do not touch or try to stop
moving parts.
• Do not touch the engine, gear housing or muer. These parts get extremely hot from
operation, even after the unit is turned o.
• Do not operate the unit faster than the speed needed to do the job. Do not run the unit
at high speed when not in use.

7
• Do not force the unit. It will do a better, safer job when used at the intended rate.
• Always turn the unit o when operation is delayed or when carrying the unit from one
location to another. Make sure all moving parts come to a complete stop.
• Before setting the unit down, always make sure the engine is o and all moving parts
have stopped.
• If the unit strikes or becomes entangled with a foreign object, stop the unit
immediately. Check for damage. If damaged, do not restart or operate the unit until it is
repaired. Do not operate the unit with loose or damaged parts.
• Turn the engine o and disconnect the spark plug for maintenance or repair.
• Use only original equipment manufacturer (OEM) replacement parts and accessories for
this unit. These are available from your authorized service dealer. Use of any other parts
or accessories could lead to serious injury to the user, or damage to the unit, and void
the warranty.
• Keep the unit clean. Carefully remove vegetation and other debris that could block
moving parts.
• To reduce re hazard, replace a faulty muer and spark arrestor. Keep the engine and
muer free from grass, leaves, excessive grease or carbon build up.
• If the unit starts to vibrate abnormally, stop the unit immediately. Inspect the unit for
the cause of the vibration. Vibration is generally an indicator of trouble.
TRIMMER SAFETY
• Only use the trimming line described in the Specications section of this manual. Never
use metal-reinforced line, wire, chain or rope. These can break o and become
dangerous projectiles.
• Do not replace the cutting head with rigid or metal blades. Doing so could result in
serious injury.
• The cutting head shield must always be in place while operating the unit.
• Do not operate the unit without both trimming lines extended and the proper line
installed. Do not extend the trimming line beyond the length of the shield.
• The cutting head will spin during idle speed adjustments. Wear protective clothing and
observe all safety instructions to prevent serious personal injury.
• Make sure the cutting head is not in contact with anything before starting the unit.

8
OTHER SAFETY WARNINGS
• Maintain the unit with care. Follow all maintenance instructions in this manual.
•Do not perform maintenance procedures other than those described in this manual. All
service, other than the maintenance procedures described in this manual, should be
performed by an authorized service dealer.
• Never remove, modify or make inoperative any safety device furnished with the unit.
• Before inspecting, maintaining, cleaning, storing, transporting or replacing any parts on
the unit:
1. Stop the unit. Refer to Starting and Stopping.
2. Make sure all moving parts have stopped.
3. Allow the unit to cool.
4. Disconnect the spark plug wire.
• Secure the unit while transporting.
• Never store the unit with fuel in the tank, inside a building where fumes may reach an
open ame (pilot lights, etc.) or sparks (switches, electrical motors, etc.).
• Store the unit in a dry place, secured or at a height to prevent unauthorized use or
damage. Keep the unit out of the reach of children.
• Never douse or squirt the unit with water or any other liquid. Keep handles dry and
clean (free from debris, oil and grease). Clean the unit after each use. Refer to Cleaning
and Storage. Do not use solvents or strong detergents.
• Keep these instructions. Refer to them often and use them to instruct other users. If you
loan this unit to others, also loan them these instructions.
SAVE THESE INSTRUCTIONS

9
SAFETY & 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.
READ OPERATOR'S MANUAL
WARNING: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.
WEAR EYE AND HEARING PROTECTION
WARNING:Thrown objects and loud noise can cause severe
eye injury and hearing loss. Wear eye protection meeting current ANSI / ISEA
Z87.1 standards and ear protection when operating this unit. Use a full face
shield when needed.
WEAR FOOT PROTECTION
Always wear heavy-duty, non-slip footwear when operating this unit.
WEAR HAND PROTECTION
Always wear heavy-duty, non-slip gloves when handling this unit.
HANDLE POSITION
Make sure the handle is positioned beyond the end of the safety label.
UNLEADED FUEL
Always use clean, fresh unleaded fuel.
OIL
Refer to operator’s manual for the proper type of oil.
DO NOT USE E85 FUEL IN THIS UNIT
CAUTION:It has been proven that fuel containing greater than
10% ethanol will likely damage this engine and void the warranty.

10
ON / OFF STOP CONTROL
ON / START / RUN
ON / OFF STOP CONTROL
OFF or STOP
PRIMER BULB
Push the primer bulb, fully and slowly, 10 times.
CHOKE CONTROL
1. FULL choke position
2. PARTIAL choke position
3. RUN choke position
THROWN OBJECTS CAN CAUSE SEVERE INJURY
WARNING:Small objects can be propelled at high speed,
causing injury.
Min. 50 ft
15 m
KEEP BYSTANDERS AWAY
WARNING:Keep all bystanders, especially children and pets, at
least 50 feet (15 m) from the operating area.
HOT SURFACE
WARNING:Do not touch a hot muer or cylinder. You may get
burned. These parts get extremely hot from operation. When turned o, they
remain hot for a short time.
SHARP BLADE
WARNING:There is a sharp blade on the cutting head shield.
To prevent serious injury, do not touch the line cutting blade.
DO NOT REPLACE CUTTING HEADS WITH BLADES*
WARNING:When using a trimmer, to prevent serious injury, do
not replace the cutting head with rigid or metal blades.
*This warning does not apply to units equipped with blades, such as edgers and
brush cutters.
TIGHTEN SCREWS
WARNING:To prevent serious injury and damage to the unit,
tighten the screws securely.
SYMBOL MEANING

11
KNOW YOUR UNIT
APPLICATIONS
• Cutting grass and light weeds.
•Edging
• Decorative trimming around trees, fences, etc.
ASSEMBLY TOOLS REQUIRED
• #2 Phillips screwdriver
Cutting Head
Shield
Cutting Head
Line Cutting Blade
Coupler
Upper Shaft Housing
Lower Shaft Housing
Handle
On/O Switch
Spark Plug
Muer
Fuel Cap
Starter Rope Grip
Shaft Grip
Throttle Control
Air Filter
Cover
Primer Bulb
Choke Lever
NOTE: The model depicted may dier from yours.

12
SPECIFICATIONS*
* All specications 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.
Canada: This spark ignition system complies with Canadian ICES-002.
ASSEMBLY
INSTALLING THE CUTTING HEAD SHIELD
(For curved-shaft units)
1. Remove the wing nut and washer from the cutting head shield.
2. Insert the short tab (the one without a hole) on the mount bracket into the slot on the cutting head
shield (Fig. 1).
3. Rotate the cutting head shield counterclockwise to align the hole on the cutting head shield with
the hole on the mount bracket (Fig. 1).
4. Insert the square bolt into the hole underneath the cutting head shield (Fig. 2). Push the square
bolt through the cutting head shield and mount bracket.
5. Place the washer onto the square bolt (Fig. 2).
6. Screw the wing nut onto the square bolt until the cutting head shield is rmly in place (Fig. 2).
WARNING:To prevent serious personal injury, never operate the unit without the
cutting head shield in place.
Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle
Displacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 cc (1.52 cu. in.)
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 in. (0.635 mm)
Spark Plug (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion® RDJ7J or Equivalent Plug
Spark Plug (Canada). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion® QDJ7J or Equivalent Plug
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture
Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40:1
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 . oz. (251 ml)
Approximate Unit Weight (No Fuel) (Varies by Model). . . . . . . . . . . . . . . . . . . . . . . . 9.5 - 11.5 lbs. (4.3 - 5.2 kg)
Trimmer Mechanism (Varies by Model) . . . . . . . . . . . . . . . . . . . . . . . . Bump Head or Fixed-Line Cutting Head
Trimming Line Diameter (Bump Head) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.095 in. (2.41 mm)
Trimming Line (Fixed-Line Cutting Head). . . . . . . . 0.095 in. (2.41 mm) or 0.105 in. (2.67 mm) Pre-Cut Line
Cutting Path Diameter (Bump Head). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 in. (40.6 cm)
Cutting Path Diameter (Fixed-Line Cutting Head) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 in. (35.6 cm)

13
Fig. 1
Mount Bracket
Cutting Head Shield
Slot
Fig. 2
Washer
Square Bolt
Wing Nut
Cutting Head Shield
Mount Bracket
INSTALLING THE CUTTING HEAD SHIELD
(For straight-shaft units)
1. Remove the wing nut and washer from the cutting head shield.
2. Insert the short tab (the one without a hole) on the mount bracket into the slot on the cutting head
shield (Fig. 3).
3. Rotate the cutting head shield until the bolt on the cutting head shield protrudes through the hole
on the mount bracket (Fig. 3).
4. Place the washer onto the bolt (Fig. 4).
5. Screw the wing nut onto the bolt until the cutting head shield is rmly in place (Fig. 4).
WARNING:To prevent serious personal injury, never operate the unit without the
cutting head shield in place.

Fig. 3
14
Fig. 4
Mount Bracket
Cutting Head Shield
Slot
Tab
Bolt
Hole
Washer
Bolt
Wing Nut
CONNECTING THE UPPER AND LOWER SHAFTS
1. Set the unit on a at, level surface.
2. Turn the upper portion of the unit upside down. The holes on the coupler should face up (Fig. 5).
3. Turn the lower portion of the unit upside down. The holes on the lower shaft housing should face
up (Fig. 5).
4. Push the lower shaft housing into the coupler (Fig. 5). The holes on the lower shaft housing should
align with the holes on the coupler (Fig. 6).
IF... the lower shaft housing does not enter the coupler completely and the holes do not align, remove
the lower shaft housing, rotate the cutting head slightly (1/8th turn) and repeat step 4 (Fig. 7).
5. Insert the screws (x2) into the aligned holes (Fig. 6).
6. Tighten the screws securely with a #2 Phillips screwdriver.
WARNING:To prevent serious personal injury or damage to the unit, always make
sure that the screws are securely tightened before each use.

15
Fig. 6
Fig. 5
Coupler
Lower Shaft
Housing
Holes
Holes
Screws (x2)
Holes
Fig. 7
1/8

16
INSTALLING AND ADJUSTING THE HANDLE
(Handle Type A)
Installing the Handle
1. Push the handle down onto the upper shaft housing (Fig. 8). Make sure the hex bolt hole faces to
the left (Fig. 8).
2. Insert the bolt into the hex bolt hole and push it through (Fig. 9). Place the washer onto the bolt
(Fig. 9). Screw the wing nut onto the bolt, but do not tighten the wing nut completely (Fig. 9).
3. Hold the unit in the operating position (Fig. 15). Move the handle up or down the upper shaft
housing to a comfortable location (Fig. 9). Make sure the handle is positioned beyond the end of
the safety label (Fig. 9).
4. Tighten the wing nut until the handle is secure.
Adjusting the Handle
If the handle requires adjustment:
1. Loosen the wing nut (Fig. 9).
2. Hold the unit in the operating position (Fig. 15). Move the handle up or down the upper shaft
housing to a comfortable location (Fig. 9). Make sure the handle is positioned beyond the end of
the safety label (Fig. 9).
3. Tighten the wing nut until the handle is secure.
HANDLE ASSEMBLY
Follow the instructions that apply to the handle included with your unit. Refer to Installing and
Adjusting the Handle.
Fig. 8
Handle
Upper Shaft
Housing
Hex Bolt Hole

17
Fig. 9
Bolt
Washer
Wing Nut
Safety Label
INSTALLING AND ADJUSTING THE HANDLE
(Handle Type B)
Installing the Handle
1. Push the handle down onto the upper shaft housing (Fig. 10). Make sure the bolt hole faces to the
right (Fig. 10).
2. Insert the bolt into the bolt hole and push it through (Fig. 10). Tighten the bolt with a at-head
screwdriver, but do not tighten the bolt completely.
3. Hold the unit in the operating position (Fig. 15). Move the handle up or down the upper shaft
housing to a comfortable location (Fig. 10). Make sure the handle is positioned beyond the end of
the safety label (Fig. 10).
4. Tighten the bolt with a at-head screwdriver until the handle is secure.
Adjusting the Handle
If the handle requires adjustment:
1. Loosen the bolt with a at-head screwdriver (Fig. 10).
2. Hold the unit in the operating position (Fig. 15). Move the handle up or down the upper shaft
housing to a comfortable location (Fig. 10). Make sure the handle is positioned beyond the end of
the safety label (Fig. 10).
3. Tighten the bolt with a at-head screwdriver until the handle is secure.
Fig. 10
Bolt Hole
Handle
Upper Shaft
Housing
Bolt
Safety Label

OIL AND FUEL MIXING INSTRUCTIONS
The use of old and/or improperly mixed fuel is the most common cause of performance problems. Use
only fresh, clean unleaded gasoline. Follow the instructions carefully for the proper gasoline/oil mixture.
Denition 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,
forming acids when stored. ALWAYS use fresh fuel (less than 30 days old).
NOTE: Dispose of old fuel according to federal, state and local regulations.
Using Blended Fuels
If using a blended fuel:
• Always use the fresh fuel mix explained in this operator's manual
• Use a fuel additive
• Always agitate the fuel mix before fueling the unit
Using Fuel Additives
The container of 2-cycle oil provided with this unit includes a fuel additive to help inhibit corrosion
and minimize gum deposits. Always use the brand of 2-cycle oil that came with this unit. If this is
unavailable, use a 2-cycle oil designed for air-cooled engines and mix it with a fuel additive. Add 0.8
oz. (23 ml) of fuel additive per gallon of fuel, according to the instructions on the container. NEVER add
fuel additives directly to the unit's fuel tank.
Mixing the Fuel
NOTE: This unit comes with a 3.2 oz. (95 ml) container of 2-cycle oil. To obtain the correct fuel mixture
described below, pour the entire container into one gallon of unleaded gasoline.
Thoroughly mix the proper ratio of unleaded gasoline with 2-cycle engine oil. Do not mix them
directly in the unit’s fuel tank. Use a separate fuel can. Use a 40:1 gasoline/oil ratio. See the table below
for specic gasoline and oil mixing ratios.
18
OIL AND FUEL
CAUTION: DO NOT USE E85 FUEL IN THIS UNIT.
It has been proven that fuel containing greater than 10% ethanol will likely damage this
engine and void the warranty.
CAUTION: For proper engine operation and maximum reliability, pay strict attention
to the gasoline and oil mixing instructions on the 2-cycle oil container. Using improperly
mixed fuel can severely damage the engine.

19
Unleaded gasoline 2-cycle oil
1 gallon U.S.
(3.8 liters)
3.2 . oz.
(95 ml)
1 liter 25 ml
MIXING RATIO - 40:1
FUELING THE UNIT
1. Position the unit with the fuel cap facing up.
2. Slowly remove the fuel cap.
3. Place the fuel container spout into the fuel tank ll hole and ll the tank.
NOTE: DO NOT overll the tank.
4. Wipe up any fuel that may have spilled.
5. Reinstall the fuel cap.
6. Move the unit at least 30 ft. (9.1 m) from the fuel container and the fueling site before starting the
engine.
WARNING: Gasoline is extremely ammable. Ignited vapors may explode. Always
stop the engine and allow it to cool before lling the fuel tank. Do not smoke while lling
the tank. Keep sparks and open ames at a distance from the area.
WARNING: Remove the fuel cap slowly to avoid injury from fuel spray. Never operate
the unit without the fuel cap securely in place.
WARNING: Add fuel in a clean, well-ventilated outdoor area. Wipe up any spilled fuel
immediately. Avoid creating a source of ignition for spilled fuel. Do not start the engine
until fuel vapors dissipate.

20
STARTING AND STOPPING
WARNING: Operate this unit only in a well-ventilated outdoor area. Carbon
monoxide exhaust fumes can be lethal in a conned area.
WARNING: Avoid accidentally starting the unit. To avoid serious injury, the operator
and the unit must be in a stable position when pulling the starter rope (Fig. 14).
WARNING:The cutting head will spin during the starting procedure. Wear protective
clothing and observe all safety instructions to prevent serious personal injury.
STARTING INSTRUCTIONS
NOTE: There is no need to turn the unit on. The On/O switch is in the On ( I ) position at all times (Fig. 11).
Before Starting the Unit
1. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.
2. Fill the fuel tank. Refer to Fueling the Unit.
Starting the Unit
1. Slowly press and release the primer bulb 10 times (Fig. 13). If fuel cannot be seen in the primer
bulb, press and release the primer bulb until fuel is visible.
2. Move the choke lever to Position 1 (Fig. 13).
3. Crouch in the starting position (Fig. 14).
4. Squeeze and hold the throttle control (Fig. 12).
NOTE: Continue to SQUEEZE and HOLD the throttle control for ALL further steps.
5. Pull the starter rope with a controlled and steady motion 5 times (Fig. 14).
6. Move the choke lever to Position 2 (Fig. 13).
7. Pull the starter rope with a controlled and steady motion 3 to 5 times to start the engine.
8. Allow the engine to warm up for 30 to 60 seconds.
9. Move the choke lever to Position 3 (Fig. 13). Allow the engine to warm up for an additional 60
seconds. The unit may be used during this time.
NOTE: The engine is properly warmed up when it accelerates without hesitation.
IF... the engine hesitates, return the choke lever to Position 2 and continue the warm-up.
IF... the engine does not start, repeat the starting procedure.
IF... the engine fails to start after a few attempts: Move the choke lever to Position 3. Squeeze and hold
the throttle control. Pull the starter rope with a controlled and steady motion until the unit starts.
IF... the engine is already warm, begin the starting procedure with step 6.