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USING FUEL ADDITIVES

The bottle of 2-cycle oil that came with your unit contains a fuel additive which will help inhibit corrosion
and minimize the formation of gum deposits. It is recommended that you use our 2-cycle oil with this unit. 
If unavailable, use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as
STA-BIL® Gas Stabilizer or an equivalent. 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.
Thoroughly mix the proper ratio of 2-cycle engine oil with
unleaded gasoline in a separate fuel can. Use a 40:1 fuel/oil
ratio. Do not mix them directly in the engine fuel tank. See the
table below for specific gas and oil mixing ratios.

NOTE:

One gallon (3.8 liters) of unleaded gasoline mixed with
one 3.2 oz. (95 ml.) bottle of 2-cycle oil makes a 40:1
fuel/oil ratio.

NOTE:

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

FILLING THE FUEL TANK

Make sure the cultivator is in a horizontal position when filling or
adding fuel to the tank. (Fig. 4)

OIL AND FUEL MIXING INSTRUCTIONS

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

DEFINITION OF BLENDED FUELS

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

USING BLENDED FUELS

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

Always use the fresh fuel mix explained in your operator's manual

Always agitate the fuel mix before fueling the unit

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

4

OIL AND FUEL INFORMATION

STARTING/STOPPING INSTRUCTIONS

STARTING INSTRUCTIONS

1.

Mix gas with oil. Fill fuel tank with fuel/oil mixture. 

Refer to Oil and Fuel Mixing Instructions

.

2.

Fully press and release the primer bulb 10 times, slowly. Some
amount of fuel should be visible in the primer bulb and fuel lines
(Fig. 6). If fuel is not visible in the bulb, press and release the
bulb until fuel is visible.

3.

Place the choke lever in 

Position 1

(Fig. 6).

4.

Stand between the handlebars and support the unit by
placing your left foot on the wheel bracket assembly and
gripping the handlebar grip with your right hand (Fig. 7).

NOTE:

Tilt the unit back slightly to bring the tines off the ground

when starting. 

5.

While squeezing the throttle control, grasp the starter rope grip
with your left hand. Pull the rope briskly 5 times.

NOTE:

The throttle control should be kept squeezed throughout
the remainder of these steps.

6.

Move the blue choke lever to 

Position 2

. (Fig. 6)

7.

While squeezing the throttle control, pull the starter rope 3 to
5 times to start the engine.

8.

Keep the throttle squeezed and allow the engine to warm up
for 30 to 60 seconds.

NOTE:

Engine may take longer to warm up and reach maximum

operating speed at colder temperatures.

9.

While continuing to squeeze the throttle control, move the
blue choke lever in 

Position 3

(Fig. 6) and continue warming

the engine for an additional 60 seconds. During this time the
unit may be used. 

NOTE:

Unit is properly warmed up when engine accelerates

without hesitation.

IF...

The engine does not start, go back to step 2.  

IF...

The engine fails to start after a few attempts, place the
choke lever in Position 3 and squeeze the throttle control.
Pull the starter rope briskly 3 to 8 times. The engine
should start. If not, repeat.

IF WARM... 

If the engine is already warm, make sure the On/Off

control is in the 

ON (I)

position and start the unit with the

choke lever in 

Position 2

. After the unit starts, move the blue

choke lever to 

Position 3

STOPPING INSTRUCTIONS

1.

Release your hand from the throttle control. Allow the engine
to cool down by idling.

2.

Press and hold the On/Off Control in the 

STOP (O) position

until the engine comes to a complete

stop.

WARNING:

Remove fuel cap slowly to avoid injury from fuel spray. Never operate the

unit without the fuel cap securely in place.

WARNING:

Add fuel in a clean, well ventilated outdoor area. Wipe up any spilled fuel

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

WARNING:

Remove fuel cap slowly to avoid injury from fuel spray. Never operate the

unit without the fuel cap securely in place.

WARNING:

Avoid accidental starting. Make sure you are in the starting position when

pulling the starter rope (Fig. 7). To avoid serious injury, the operator and unit must be
in a stable position while starting.

Stop/Off (O)

On/Off

Control

Start/On (I)

Fig. 5

Position 1

Position 3

Position 2

Choke

Lever

Fig. 6

Starting Position

Starter

Rope

Throttle

Control

Fig. 7

Primer Bulb

KNOW YOUR UNIT

APPLICATION

Cultivating sod and light to
medium soil

Cultivating in garden areas,
around trees, etc.

Choke

Lever

Throttle

Control

Handgrip

Handlebar

Knob

Primer Bulb

Air Filter/

Muffler

Cover

Spark Plug

Gear Box

Starter Rope

Grip

Muffler

On/Off Stop

Control

Wheel Bracket

Assembly

Shaft Tube Grip

Fuel Cap

ASSEMBLING THE UNIT

Before operating, position the unit’s handlebars.

NOTE:

You may also need to reposition the wheel height before
using the cultivator. Refer to the Adjusting Tine Depth
section.

Begin by carefully unpacking the contents and making sure that
nothing is damaged.

POSITIONING THE HANDLEBARS

1.

Loosen the two knobs on the inside of the handlebars (Fig. 1).

2.

With the unit upright, swing the handlebars up into the
operating position (Fig. 1).

NOTE:

Take care not to pinch the throttle cable or switch wires
when positioning the handlebar.

3.

Tighten the knobs to secure the handlebars in place.

NOTE:

Do not over-tighten the knobs.

4.

Readjust the throttle cable and switch the wires so they are
smooth and tight against the handlebar assembly. This will
help prevent them from catching or snagging during normal
operation.

INSTALLING THE WHEEL BRACKET ASSEMBLY

If the wheel bracket assembly is not installed, or if you ever need
to remove or reinstall it, follow the ensuing instructions.

1.

With the unit on its side, place the wheel bracket assembly
on the underside of the tine guard (Fig. 3).

2.

Install a carriage bolt through each of the slotted holes in the
wheel bracket and into the tine guard.

3.

On the 

TOP

side of the tine guard, install a lock washer and a

wing nut onto each of the bolts (Fig. 3).

4.

Make sure the square shoulder of the bolts is pushed through the slotted holes in the wheel bracket.
Tighten the wing nuts (Fig. 3).

NOTE:

Do not over-tighten the wing nuts. Loosen the wing nuts to adjust wheel height.

ASSEMBLY INSTRUCTIONS

Handlebar

Knob

Fig. 1

Bolt

Washer

Hole

Handlebar

Knob

Fig. 2

Tine

Guard

Wing Nut & Lock Washer

Fig. 3

CAUTION:

For proper engine operation and maximum reliability, pay strict attention to

the oil and fuel mixing instructions on the 2-cycle oil container. Using improperly mixed fuel
can severely damage the engine.

WARNING:

Gasoline is extremely flammable.

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

Tines

Tine Guard

WARNING:

To avoid injury from the tines,

wear heavy gloves and a long sleeve shirt when
installing the wheel bracket assembly.

WARNING:

To prevent serious personal injury,

the wheel bracket assembly must be installed
when operating the unit.

Tighten

Handlebars

OIL AND FUEL INFORMATION

Fig. 4

Throttle Control

MIXING RATIO - 40:1

UNLEADED GAS

2 CYCLE OIL

1 GALLON

(3.8 LITERS)

3.2 FL. OZ.

(95 ml) 

1 LITER

25 ml

Summary of Contents for YM121

Page 1: ...sembling this product or have any questions regarding the controls operation or maintenance of this unit please call the Customer Support Department DO NOT RETURN THE UNIT TO THE RETAILER PROOF OF PUR...

Page 2: ...unit towards you Do not overreach Always keep proper footing and balance Take extra care when working on steep slopes or inclines Always hold the unit with both hands when operating Keep a firm grip...

Page 3: ...ed parts or accessories could lead to serious injury to the user or damage to the unit and void your warranty Keep unit clean of vegetation and other materials They may become lodged between the tines...

Page 4: ...l is in the ON I position and start the unit with the choke lever in Position 2 After the unit starts move the blue choke lever to Position 3 STOPPING INSTRUCTIONS 1 Release your hand from the throttl...

Page 5: ...djusting the idle speed adjuster Refer to Air Filter Maintenance Adjust Idle Speed Adjuster If after checking the fuel mixture and cleaning the air filter the engine still will not idle adjust the idl...

Page 6: ...OTE Replace a cracked fouled or dirty spark plug 3 Set the air gap at 0 025 in 0 635 mm using a feeler gauge Fig 19 4 Install a correctly gapped spark plug in the cylinder head Tighten by turning the...

Page 7: ...7 NOTES...

Page 8: ...8 NOTES...

Page 9: ...mtdproducts com www mtdproducts ca NE RETOURNEZ PAS L APPAREIL AU D TAILLANT CHEZ QUI VOUS L AVEZ ACHET TOUT SERVICE SOUS GARANTIE N CESSITE UNE PREUVE D ACHAT CE PRODUIT EST COUVERT PAR UN OU PLUSIE...

Page 10: ...d un embrayage Les dents restent immobiles lorsque le moteur est au ralenti Si ce n est pas le cas faites r gler l appareil par un technicien agr Avant de d marrer l appareil assurez vous que les den...

Page 11: ...tion ou de retrait des dents L appareil et les dents doivent tre arr t s pour viter toute blessure Les dents deviennent tr s tranchantes l usage Portez toujours des gants lorsque vous manipulez retire...

Page 12: ...d j chaud assurez vous que l interrupteur Marche Arr t est en position ON et d marrez la machine avec le levier bleu en Position 2 Apr s que la machine ait d marr mettez le levier bleu en Position 3...

Page 13: ...rites du point de vue de la position d utilisation Vous devez remplacer les 4 dents en m me temps parce qu elles s usent de mani re gale Commencez par un c t la fois 1 Mettez la commande Marche Arr t...

Page 14: ...fermement le c ble de bougie et retirez le capuchon de celle ci 2 Nettoyez le pourtour de la bougie Retirez la bougie de la culasse en tournant la douille de 5 8 po gauche REMARQUE Remplacez toute bo...

Page 15: ...igence ou maintenance inad quate de votre quipement Votre syst me de contr le des missions par vaporation peut comprendre des pi ces telles que carburateurs r servoirs de carburant conduits d essence...

Page 16: ...F8 NOTES...

Page 17: ...d visite nuestro sitio en www mtdproducts com www mtdproducts ca NO REGRESE SU UNIDAD AL VENDEDOR PARA SOLICITAR SERVICIO POR LA GARANTIA DEBERA PRESENTAR PRUEBA DE SU COMPRA ESTE PRODUCTO ESTA CUBIER...

Page 18: ...aga que un t cnico de servicio autorizado ajuste la unidad Verifique que las p as no hagan contacto con ning n objeto antes de arrancar la unidad Evite arrancar la unidad accidentalmente Col quese en...

Page 19: ...ue el motor para realizar el mantenimiento reparaciones para instalar o sacar las p as La unidad debe estar apagada y las p as deben haberse detenido para evitar lesiones Con el uso las p as se afilan...

Page 20: ...or ya est caliente cerci rese de que el control de Encendido Apagado est en la posici n de ARRANQUE I y arranque la unidad con la palanca azul en la Posici n 2 Despu s de que la unidad arranque mueva...

Page 21: ...elva a colocar el tornillo que quit en el Paso 2 y apri tele firmemente 9 Reinstale la tapa del filtro de aire silenciador AJUSTE DEL CARBURADOR La velocidad lenta del motor puede ser ajustada por la...

Page 22: ...l carburador a un proveedor de servicio autorizado para que lo ajuste CAMBIO DE LA BUJIA DE ENCENDIDO Use una buj a de encendido Champion RDJ7Y o similar La separaci n correcta es de 0 020 pulgadas 0...

Page 23: ...c sped y el jard n peque o para el per odo que se indica a continuaci n siempre y cuando no haya habido maltrato negligencia o mantenimiento inadecuado de su equipo Su sistema de control de emisiones...

Page 24: ...erves the right to change or improve the design of any MTD Product without assuming any obligation to modify any product previously manufactured No implied warranty including any implied warranty of m...

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