EarthQuake MC43 User manual

Operator’s Manual
Original Operating Instructions
MC43
2-Cycle Tiller
Cultivator
P/N: 30547
ECN: 11966
REV2: 01/19/18
© 2018 Ardisam, Inc.
All Rights Reserved
Get parts online at
www.GetEarthquake.com
or call for parts
800-345-6007 M-F 8A-5P
CAUTION ICON R1
READ OM ICON R1
LOT #
Includes Model:
MC43

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
2THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
INTRODUCTION
Thank you for purchasing a tiller cultivator from Earthquake®. We have worked to ensure that this tiller cultivator meets the highest
standards for usability and durability. With proper care, your tiller cultivator will provide many years of service.
Please read this entire manual before installation and use. Earthquake® reserves the right to change, alter or improve the product and
this document at any time without prior notice.
CONTENTS
Introduction/Content/Registration and Service........................................................................................................................................2
Warnings and Safety Precautions......................................................................................................................................................... 3-6
Operation Precautions/Maintenance and Storage Precautions ................................................................................................................6
Burns and Fires/Safety Decals............................................................................................................................................................. 6-7
Features....................................................................................................................................................................................................8
Harware Chart..........................................................................................................................................................................................9
Unpacking and Assembly ........................................................................................................................................................................9
Operation.......................................................................................................................................................................................... 10-13
Maintenance and Storage................................................................................................................................................................. 13-15
Troubleshooting and Repair............................................................................................................................................................. 15-16
Illustrated Parts Breakdown............................................................................................................................................................. 17-21
15073 Border-Edger Kit Installation (Optional Accessory) ..................................................................................................................22
DK43 Dethatcher Kit Installation (Optional Accessory) .......................................................................................................................23
OWNERSHIP RECORDS
Owner’s Name:
Owner’s Address:
City: State/Province: Zip Code/Postal Code:
Model Number: Serial Number:
Date of Purchase:
Notes:
REGISTRATION AND SERVICE
Record the product model number and serial number in the space provided for
easy reference when ordering parts or requesting technical support. Excluding
emissions-related warranty items, the warranty is valid only if the completed
registration is received by Ardisam within 30 days of purchase. (SEE WARRANTY
SECTION FOR MORE INFORMATION) You can register your warranty online by
visiting www.earthquake.com, or by mailing it to: Ardisam Inc, 1160 8th Avenue,
Cumberland, WI 54829. You may also call our Customer Service department at
[phone] Mondays through Fridays from 8 a.m. to 5 p.m. CST.
Read and keep this manual for future reference. This manual contains important information on SAFETY, ASSEMBLY, OPERATION,
AND MAINTENANCE. The owner must be certain that all the product information is included with the unit. This information includes
the MANUAL, the REPLACEMENT PARTS and the WARRANTIES. This information must be included to make sure state laws and
other laws are followed. All persons to whom rent/loan this unit must have access to and understand this information. This manual
should remain with the product even if it is resold.
SERIAL
NUMBER
DECAL

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
3
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
WARNINGS AND SAFETY PRECAUTIONS
Owner’s Responsibility
Accurate assembly and safe and eective use of the machine is
the owner’s responsibility.
• Read and follow all safety instructions.
• Carefully follow all assembly instructions.
• Maintain the machine according to directions and
schedule included in this Earthquake operator’s
manual.
• Ensure that anyone who uses the machine is familiar
with all controls and safety precautions.
• Be mindful that the operator or user is responsible for
accident or hazards occurring to other people, their
property, and themselves.
Special Messages
Your manual contains special messages to bring attention to
potential safety concerns, machine damage as well as helpful
operating and servicing information. Please read all the
information carefully to avoid injury and machine damage.
NOTE: General information is given throughout the
manual that may help the operator in the operation
or service of the machine.
THIS SYMBOL POINTS OUT IMPORTANT
SAFETY INSTRUCTIONS WHICH, IF
NOT FOLLOWED, COULD ENDANGER
YOUR PERSONAL SAFETY. READ AND
FOLLOW ALL INSTRUCTIONS IN THIS
MANUAL BEFORE ATTEMPTING TO
OPERATE THIS EQUIPMENT.
Before Operating Engine:
Please read this section carefully. Read entire operating and
maintenance instructions for this product. Failure to follow
instructions could result in damage to personal property, serious
injury or death. Operate the machine according to the safety
instructions outlined here and inserted throughout the text.
Anyone who uses this machine must read the instructions and be
familiar with the controls.
Intended Use / Foreseeable Misuse
IMPORTANT: This is a motorized rotary tiller cultivator
that works the soil by means of rotating tines. It is pedestrian-
controlled, but not self-propelled, with a gasoline-fueled internal
combustion engine to power the tines. It shall not be used for
any other purpose.
DANGER
SRT CRT
NOTICE
NOTICE INDICATES YOUR EQUIPMENT CAN
BE DAMAGED IF THE SAFETY INSTRUCTIONS
THAT FOLLOW THIS SIGNAL WORD ARE NOT
OBEYED.
CAUTION
CAUTION INDICATES A HAZARD WHICH, IF
NOT AVOIDED, COULD RESULT IN PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
WARNING
WARNING INDICATES A HAZARD WHICH, IF
NOT AVOIDED, COULD RESULT IN DEATH OR
SERIOUS INJURY AND/OR PROPERTY DAM-
AGE.
DANGER
DANGER INDICATES A HAZARD WHICH, IF
NOT AVOIDED, WILL CERTAINLY RESULT IN
DEATH OR SERIOUS INJURY AND/OR PROP-
ERTY DAMAGE.
IMPORTANT
IMPORTANT INDICATES HELPFUL INFORMA-
TION FOR PROPER ASSEMBLY, OPERATION,
OR MAINTENANCE OF YOUR EQUIPMENT.
WARNING
YOU MUST READ, UNDERSTAND AND COM-
PLY WITH ALL SAFETY AND OPERATING
INSTRUCTIONS IN THIS MANUAL BEFORE
ATTEMPTING TO SETUP AND OPERATE YOUR
MACHINE.
FAILURE TO COMPLY WITH ALL SAFETY AND
OPERATING INSTRUCTIONS CAN RESULT IN
LOSS OF MACHINE CONTROL, SERIOUS PER-
SONAL INJURY TO YOU AND/OR BYSTANDERS,
AND RISK OF EQUIPMENT AND PROPERTY
DAMAGE. THE TRIANGLE IN THE TEXT SIGNI-
FIES IMPORTANT CAUTIONS OR WARNINGS
WHICH MUST BE FOLLOWED.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
4THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
General Safety Rules
• Read, understand, and follow all instructions on the
machine and in the manual(s). Be thoroughly familiar
with the controls and the proper use of the machine
before starting.
• Use this equipment for its intended purpose only.
• Familiarize yourself with all of the safety and operating
decals on this equipment and on any of its attachments
or accessories.
• Do not put hands or feet near or under rotating parts.
• Only allow responsible individuals who are familiar
with the instructions to operate the machine. Do
not allow children to operate this machine. Do not
allow adults to operate the machine without proper
instruction.
• Thoroughly inspect the area where the machine is to be
used and remove all foreign objects. Your equipment
can propel small objects at high speed causing
personal injury or property damage. Stay away from
breakable objects, such as house windows, automobile,
greenhouses, etc.
• Wear appropriate clothing such as a long-sleeved shirt
or jacket. Also wear long trousers or slacks. Do not
wear shorts. Never wear sandals, sneakers, or open
shoes, and never operate the machine with bare feet.
• Do not wear loose clothing or jewelry. They can get
caught in moving parts. Always keep hands, feet, hair
and loose clothing away from any moving parts on
engine and machine.
• Always wear safety goggles or safety glasses with side
shields when operating the machine to protect your eyes
from foreign objects which can be thrown from the unit.
Always wear a protective hearing device.
• Always wear work gloves and sturdy footwear. Wear
footwear that will improve footing on slippery surfaces.
Leather work shoes or short boots work well for most
people. These will protect the operator’s ankles and
shins from small sticks, splinters, and other debris.
• It is advisable to wear protective headgear to prevent
the possibility of being struck by small ying particles,
or being struck by low hanging branches, twigs, or
other objects which may be unnoticed by the operator.
• Do not operate the machine without proper guards or
other safety protective devices in place.
• See manufacturer’s instructions for proper operation
and installation of accessories. Only use accessories
approved by the manufacturer.
• Operate only in daylight or good articial light.
• Do not operate product when fatigued or under the
inuence of alcohol, drugs or other medication which
can cause drowsiness or aect your ability to operate
this machine safely.
• Never operate machine in wet grass. Always be sure of
your footing; keep a rm hold on the handle and walk;
never run.
• Never operate machine at high transport speeds on hard
or slippery surfaces.
• Watch for trac when operating near, or when
crossing roads.
• If the equipment should start to vibrate abnormally,
stop the engine (motor), disconnect the spark plug wire
and prevent it from touching the spark plug. Check
immediately for cause. Vibration is generally a warning
of trouble. If the noise or vibrations of the machine
increase, stop immediately and perform an inspection.
• Never leave the machine unattended when the engine is
running. Remove the wire from the spark plug.
• Regularly inspect the machine. Make sure parts are not
bent, damaged or loose.
• Temperature of muer and nearby areas may exceed
150° F (65° C). Allow muer and engine areas to cool
before touching. Never pick up or carry the machine
while the engine is running.
• Prolonged exposure to noise and vibration from gasoline
engine-powered equipment should be avoided. Take
intermittent breaks and/or wear ear protection from engine
noise as well as heavy work gloves to reduce vibration in
the hands.
• Keep all screws, nuts and bolts tight.
• Do not transport the machine from one place to another
with the engine running.
• When moving the packaged machine, always do so
with a partner.
• Check local regulations for age restrictions on use of
this machine.
Product-Specic Safety Rules
• Do not till above underground utilities, including water
lines, gas lines, electric cables, or pipes. Do not operate
the machine on terrain/soil with large rocks and foreign
objects which can damage the equipment.
• After striking a foreign object, stop the engine. Remove
the wire from the spark plug. Inspect the machine
for damage. If damaged, repair before starting and
operating the machine.
• The tines of the tiller cultivator should not rotate when
the engine is idling. If it does rotate when engine is
idling, contact Earthquake for instructions.
• If an object becomes lodged in the tines, turn engine
o, remove the wire from the spark plug and secure,
allow to cool before attempting to remove the foreign
object.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
ENGINE EXHAUST FROM THIS PRODUCT CON-
TAINS CHEMICALS KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER, BIRTH
DEFECTS, OR OTHER REPRODUCTIVE HARM.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
5
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
Engine Safety Precautions
If your product comes with a separate engine manual, be
sure to read and follow all safety and warning precautions
outlined there, in addition to any in this manual.
Preventing Carbon Monoxide Poisoning
• Always start and run engine outdoors. Do not start or run
engine in an enclosed area, even if doors or windows are
open.
• Never try to ventilate engine exhaust indoors. Carbon
monoxide can reach dangerous levels very quickly.
• Never run engine outdoors where exhaust fumes may
be pulled into a building.
• Never run engine outdoors in a poorly ventilated area
where the exhaust fumes may be trapped and not easily
taken away. (Examples include: in a large hole or areas
where hills surround your working area.)
• Never run engine in an enclosed or partially enclosed
area. (Examples include: buildings that are enclosed on
one or more sides, under tents, car ports or basements.)
• Always run the engine with the exhaust and muer
pointed in the direction away from the operator.
• Never point the exhaust muer towards anyone. People
should always be many feet away from the operation of
the engine and its attachments.
• Do not change the engine governor settings or over-
speed the engine.
Gasoline Fires and Handling Fuel Safely
Use extra care in handling gasoline and other fuels. They are
ammable and vapors are explosive.
• When storing extra fuel be sure that it is in an
appropriate container and away from any re hazards.
• Prevent re and explosion caused by static electric
discharge. Use only nonmetal, portable fuel containers
approved by the Underwriter’s Laboratory (U.L.) or the
American Society for Testing & Materials (ASTM).
• Never remove the fuel cap or add fuel with the engine
running. Stop engine and allow to cool before lling.
• Never drain fuel from engine in an enclosed area.
• Always ll fuel tank outside in a well ventilated area.
Never ll your fuel tank with fuel indoors. (Examples
include: basement, garage, barn, shed, house, porch,
etc.) Never ll tank near appliances with pilot lights,
heaters, or other ignition sources. If the fuel has to be
drained, this should be done outdoors. The drained fuel
should be stored in a container specically designed for
fuel storage or it should be disposed of carefully.
• Always wipe up excess (spilled) fuel from engine
before starting. Clean up spilled fuel immediately. If
fuel is spilled, do not start the engine but move product
and fuel container from area. Clean up spilled fuel and
allow to evaporate and dry after wiping and before
starting.
• Allow fuel fumes/vapors to escape from the area before
starting engine.
• Test the fuel cap for proper installation before starting
and using engine.
• Always run the engine with fuel cap properly installed
on the engine.
• Never smoke while relling engine fuel tank.
• Do not store engine with fuel in fuel tank indoors. Fuel
and fuel vapors are highly explosive.
Preparation
• Dress appropriately when operating the tiller cultivator.
Always wear sturdy footwear. Never wear sandals,
sneakers or open shoes, and never operate the tiller
cultivator with bare feet. Do not wear loose clothing
that might get caught in moving parts.
• Carefully inspect the area to be tilled and remove all
foreign objects. Do not till above underground water
lines, gas lines, electric cables, or pipes. Do not operate
the tiller cultivator in soil with large rocks and foreign
objects which can damage the equipment.
DANGER
ENGINES GIVE OFF CARBON MONOXIDE, AN
ODORLESS, COLORLESS, POISONOUS GAS.
CARBON MONOXIDE MAY BE PRESENT EVEN
IF YOU DO NOT SMELL OR SEE ANY ENGINE
EXHAUST. BREATHING CARBON MONOXIDE
CAN CAUSE NAUSEA, FAINTING OR DEATH, IN
ADDITION TO DROWSINESS, DIZZINESS AND
CONFUSION.
IF YOU EXPERIENCE ANY OF THESE SYMP-
TOMS, SEEK FRESH AIR AND MEDICAL AT-
TENTION IMMEDIATELY.
CAUTION
HOT GASES ARE A NORMAL BY-PRODUCT OF
A FUNCTIONING INTERNAL COMBUSTION
ENGINE. FOLLOW ALL SAFETY INSTRUC-
TIONS TO PREVENT BURNS AND FIRES.
WARNING
NEVER ALTER OR MODIFY THE ENGINE
FROM THE FACTORY. SERIOUS INJURY OR
DEATH MAY OCCUR IF ENGINE IS MODIFIED
OR ALTERED.
WHEN WORKING ON OR REPLACING PARTS
FOR THE ENGINE OR PRODUCT, YOU MUST
ALWAYS FLIP THE ON/OFF SWITCH TO THE
OFF POSITION.
• The clutch will transfer maximum power after about
two hours of normal operation. During this break-in
period clutch slippage may occur. The clutch should be
kept free of oil or other moisture for ecient operation.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
6THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
• Handle fuel with care; it is highly ammable.
a. Use an approved fuel container.
b. Never add fuel to a running engine or hot engine.
c. Fill fuel tank outdoors with extreme care. Never ll fuel
tank indoors.
d. Replace gasoline cap securely and clean up spilled fuel
before restarting.
OPERATION PRECAUTIONS
• Do not operate tiller cultivator under the inuence of
alcohol or drugs.
• Never operate tiller cultivator without guards, covers,
and hoods in place.
• Keep hands, feet, and clothing away from rotating parts.
Keep clear of tiller cultivator tines at all times.
• Tines rotate when tiller cultivator is engaged; tines
rotate when the drive safety control lever is pulled up.
Releasing the drive safety control lever to neutral stops
the tines.
• Use extreme caution when operating on or crossing
gravel drives, walks, or roads. Stay alert for hidden
hazards or trac.
• Never operate machinery at high transport speeds on
hard or slippery surfaces.
• After striking a foreign object, stop the engine, remove
the wire from the spark plug, thoroughly inspect the
tiller cultivator for any damage, and repair the damage
before restarting and operating the tiller cultivator.
• If vegetation clogs the tines, stop the engine and
disconnect the spark plug wire before removing
vegetation by hand.
• If the unit should start to vibrate abnormally, stop the
engine and check immediately for the cause. Vibration
is generally a warning of trouble.
• Do not run engine indoors; exhaust fumes are deadly.
• Do not overload the machine capacity by attempting to
till too deep at too fast of a rate.
• Never operate the tiller cultivator without good
visibility or light.
BURNS AND FIRES
The muer, muer guard and other parts of the engine become
extremely hot during the operation of the engine. These parts
remain extremely hot after the engine has stopped.
Prevention of Burns and Fires
• Never remove the muer guard from the engine.
• Never touch the muer guard because it is extremely hot and
will cause severe burns.
• Never touch parts of the engine that become hot after operation.
• Always keep materials and debris away from muer guard and
other hot parts of the engine to avoid res.
Children and bystanders
Tragic accidents can occur if the operator is not alert to the
presence of children and/or bystanders. Never assume that others
will remain where you last saw them.
• Keep the area of operation clear of all persons, especially small
children and pets. Keep children under the watchful care of a
responsible adult.
• Be alert and turn machine o if children enter the area.
• Before and while moving backwards, look behind and down
for small children.
• Never allow children to operate the machine.
• Use extra care when approaching blind corners, shrubs, trees,
or other objects that may obscure vision.
RL
• Take all possible precautions when leaving the machine
unattended. Disengage throttle control, stop the engine,
wait for all moving parts to stop, and make certain
guards and shields are in place.
• When leaving the operating position for any reason:
- shut o the engine.
- wait for all moving parts to stop.
MAINTENANCE AND STORAGE
PRECAUTIONS
• Keep machine, attachments and accessories in safe
working condition.
• Check shear bolts, engine mounting bolts and other
bolts at frequent intervals for proper tightness to be sure
the equipment is in safe working condition.
• To prevent accidental starting, always disconnect and
secure the spark plug wire from the spark plug before
performing tiller cultivator maintenance.
• Never run the engine indoors. Exhaust fumes are
deadly.
• Always allow muer to cool before lling the fuel
tank.
• Never store equipment with gasoline in the tank inside
a closed building where fumes may reach an open ame
or spark. Allow the engine to cool before storing in any
building.
• Always refer to the operator’s guide instructions for
important details if the tiller cultivator is to be stored
for an extended period.
NOTICE
THE RIGHT AND LEFT
SIDES OF YOUR TILLER
CULTIVATOR ARE
DETERMINED FROM THE
OPERATING POSITION AS
YOU FACE THE DIRECTION
OF FORWARD TRAVEL.
THE 2-CYCLE ENGINE USES A 50:1 RATIO OF
GAS:OIL.
DO NOT USE STRAIGHT, UNMIXED GASOLINE
OR ENGINE DAMAGE WILL OCCUR.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
7
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
SAFETY DECALS
This tiller cultivator has been designed and manufactured
to provide you with the safety and reliability you would
expect from an industry leader in outdoor power equipment
manufacturing.
Reading this manual and the safety instructions it contains will
provide you with the necessary basic knowledge to operate this
equipment safely and eectively. We have placed a safety decal
on the tiller cultivator to remind you of some of this important
information while you are operating the unit.
These important safety decals are shown here to help familiarize
you with the location and content of the safety messages you
will see as you perform normal tilling operations. Please review
these decals now, and if you have any questions regarding its
meaning or how to comply with these instructions, reread the
complete safety instruction text in this manual.
Part No. 17048
Tiller Cultivator Warning Decal - Tine Shield
Part No. 17301
Throttle Control Decal - Right Handlebar
Part No. 17918
Free Hand Safe Starting Location Decal - Left Handlebar
Service
• Always stop the engine whenever you leave the equipment,
before cleaning, repairing or inspecting the unit. Engine should
be turned o and cool. Never make adjustments or repairs
with the engine (motor) running. Flip the ON/OFF switch to
the OFF position to prevent accidental starting.
• Always wear eye protection when you make adjustments or
repairs.
• Keep all nuts and bolts tight and keep equipment in good
condition.
• Never tamper with safety devices. Check their proper operation
regularly.
• When servicing or repairing the machine, do not tip the machine
over or up unless specically instructed to do so in this manual.
Service and repair procedures can be done with the machine in an
upright position. Some procedures will be easier if the machine
is lifted on a raised platform or working surface.
• To reduce re hazard, keep machine free of grass, leaves or
other debris build-up. Clean up oil or fuel spillage. Allow
machine to cool before storing.
• Stop and inspect the equipment if you strike an object. Repair,
if necessary, before restarting.
• Clean and replace safety and instruction decals as necessary.
• Inspect machine before storage. When not in use, ip the ON/
OFF switch to the OFF position and store indoors in a dry
place locked or otherwise inaccessible to children.
• Use only original equipment parts from Earthquake, including
all nuts and bolts.
WARNING/AVERTISSEMENT
Keep Away From Rotating Tines.
Rotating tines will cause injury. Read the operator’s manual. Know the location
and function of all controls. Keep all safety devices and shields in place and
working. Never allow children or uninstructed adults to operate machine. Shut
o engine before manually unclogging tines or making repairs. Keep bystanders
away from machine. Keep away from rotating parts. Use extreme caution when
reversing or pulling the machine towards you. Failure to follow this warning can
result in serious bodily injury including broken bones and loss of limbs.
Rester à l’écart des fraises en rotation.
Les fraises en rotation provoquent des blessures. Lire le manuel de l’utilisateur. Connaître l’emplacement
et la fonction de toutes les commandes. Maintenir tous les écrans et dispositifs de sécurité en place et en
état de marche. Ne jamais permettre à des enfants ou à des adultes inexpérimentés d’utiliser la machine.
Couper le moteur avant de désobstruer les fraises ou d’eectuer des réparations.Tenir les personnes
présentes à l’écart de la machine. Rester à l’écart des pièces en rotation. Faire preuve de grande prudence
lors des changements de sens ou en tirant la machine vers soi. Ne pas respecter cet avertissement peut
entraîner de graves blessures corporelles, notamment des fractures osseuses voire la perte de membres.
17048

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
8THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
ENGINE
DISPLACEMENT
43cc
FUEL TANK CAPACITY 36 -oz
OIL/GAS RATIO 50:1 - 2.6 -oz per gallon
OIL TYPE Viper 2-cycle engine oil
(Part number: 16890)
FUEL TYPE Minimum 87 octane gasoline.
NOTE: If using an ethanol
blended fuel, a fuel
stabilizer, mixed to manu-
facturer specications, is
recommended.
SPECIFICATIONS
FEATURES
SPARK PLUG L7RTC
SPARK PLUG GAP 0.027 inch
TRANSMISSION Bronze gear drive
GEAR RATIO 32:1
TILLING WIDTH 6 inch min. - 10 inch max.
TILLING DEPTH 8 inch max.
TINE SPEED 250 rpm max.
WHEEL SIZE 7.0 inch dia. x 1.375 inch wide
WEIGHT OF UNIT 33 lb
ASSEMBLED SIZE 35 x 18 x 38 inch (L x W x H)
THROTTLE
CONTROL
LEVER
2 POSITION TOOL-LESS
HANDLEBAR HEIGHT
ADJUSTMENT
3 POSITION
TOOL-LESS
WHEEL HEIGHT
ADJUSTMENT
SEE
THROUGH
FUEL TANK
TOOL-LESS
REVERSIBLE &
REPLACEABLE TINES

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
9
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
UNPACKING AND ASSEMBLY
Unpack Tiller Cultivator
1. Carefully lift the tiller cultivator out of the box, remove
any packing material and cut any ties holding the handlebar
pieces to the tiller cultivator assembly.
2. Find parts packet. Parts packet contains:
• 4 - T-Handle Nuts (4640)
• 4 - Curved Washers (4641)
• 4 - Saddle Bolts (4642)
Assembly
1. Stand the tiller cultivator assembly upright with tines and
wheels on a level surface. Wheels should be set in the
lowest position. DO NOT place the tiller cultivator on a
high surface where it can fall and cause property damage or
personal injury.
2. Using two T-handle nuts, two saddle bolts, and two
curved washers, attach the middle handlebar to the lower
handlebar that is already connected to the tiller cultivator
assembly. The middle handlebar can be installed in one of
two positions, one high and one low. DO NOT overtighten
the T-handle nuts. SEE FIGURE 1
3. Attach the upper right and left handlebars to the middle
handlebar using the two remaining T-handle nuts, saddle
bolts, and curved washers. DO NOT overtighten the
T-handle nuts. SEE FIGURE 1
4. The drag stake is shipped with point facing upwards.
Before using, remove lock pin and turn the drag stake
around so the point is directed in the downward position
facing towards the tines. Re-insert lock pin.
SEE FIGURE 2
UPPER RIGHT
HANDLEBAR CURVED
WASHER
T-HANDLE NUT SADDLE
BOLT
UPPER LEFT
HANDLEBAR
MIDDLE
HANDLEBAR
LOWER
HANDLEBAR
LOW POSITION
MOUNT HOLES
HIGH POSITION
MOUNT HOLES
FIGURE 1
LOCK PIN
DRAG STAKE
(POINT DOWN FOR OPERATION)
FIGURE 2
HARDWARE CHART
(Use this as a size guide for the hardware in the Unpacking
and Assembly section)
4640
T-handle Nuts
Qty 4 4642
Saddle Bolts
Qty 4
4641
Curved Washers
Qty 4

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
10 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
Tine Removal and Installation
To Remove Tines, do as follows: SEE FIGURE 3
1. Remove the hairpins from each end of the tine shaft.
2. Slide the four tines o the shaft.
To Install Tines
1. First slide the inside tines onto each end of the tine shaft.
One inside tine is stamped with a Band the other is
stamped with a C.
2. Slide the outside tine Aand tine Donto each end of the
shaft next. The tines should be installed in the correct
Filling Fuel Tank
1. Shut-o engine and allow engine to completely cool before
relling the fuel tank.
2. Move to a well ventilated area, outdoors, away from ames
and sparks.
3. Clean debris from area around the fuel cap.
4. Loosen fuel cap slowly. Place the cap on a clean, dry
surface.
OPERATION
Operation Tips
1. The clutch will transfer maximum power after about two
hours of normal operation. During this break-in period
clutch slippage may occur. The clutch should be kept free
of oil and other moisture for ecient operation.
2. Till without placing excessive body weight on the unit. The
tiller cultivator operates most eciently with the weight of
the unit itself.
Preparing Engine for Starting
Mixing Fuel and Filling the Fuel Tank
NOTE:Engine must be run with a 50:1 Fuel:Oil ratio.
1. Fuel must be mixed in a container outside in a well
ventilated area.
2. Fill certied fuel container 1/4 full of recommended fuel.
3. Add recommended amount of 2-cycle oil.
4. Screw container gas cap on straight and tight.
5. Shake the container to mix fuel and oil.
6. Unscrew gas cap slowly to vent, add the remainder of fuel
requirements.
7. Wipe away any spilled fuel or oil and allow to evaporate
before moving or transporting.
GAS OIL RATIO
1 gallon 2.6 uid-ounces 50:1
2 gallons 5.1 uid-ounces 50:1
5 gallons 13 uid-ounces 50:1
5. Carefully add fuel without spilling.
6. Do not ll gas tank completely full, allow space for fuel to
expand.
7. Immediately replace fuel cap and tighten. Wipe o spilled
fuel and allow to dry before starting engine.
IMPORTANT
TO OPERATE THE ENGINE, WE RECOM-
MEND USING “VIPER” BRAND 2-CYCLE OIL
(PN 16890), OR EQUIVALENT HIGH QUALITY
2-CYCLE OIL DESIGNED FOR AIR-COOLED
2-CYCLE ENGINES, TO ENSURE THAT THE
ENGINE OPERATES CORRECTLY THROUGH-
OUT THE LIFE OF THE ENGINE. USE PREMI-
UM GASOLINE, LOW/NO ETHANOL BLENDS
RECOMMENDED.
WARNING
DO NOT STORE ENGINE INDOORS WITH FUEL
IN THE TANK. FUEL AND FUEL VAPORS ARE
HIGHLY FLAMMABLE.
NEVER MIX FUEL AND OIL DIRECTLY IN
ENGINE FUEL TANK. USE ONLY NONMETAL,
PORTABLE FUEL CONTAINERS APPROVED
BY THE UNDERWRITER’S LABORATORY (U.L.)
OR THE AMERICAN SOCIETY FOR TESTING &
MATERIALS (ASTM).
AN ADULT MUST ALWAYS HANDLE AND FILL
THE ENGINE WITH FUEL.
ALWAYS HANDLE GAS IN A WELL VENTILAT-
ED AREA, OUTDOORS, AWAY FROM FLAMES
OR SPARKS.
DO NOT START ENGINE IF FUEL IS SPILLED.
WIPE OFF EXCESS FUEL AND ALLOW TO DRY.
REMOVE ENGINE FROM AREA TO AVOID
SPARKS.
NEVER RUN ENGINE INDOORS. EXHAUST
FUMES ARE DEADLY.
FAILURE TO FOLLOW THESE WARNINGS CAN
CAUSE DAMAGE TO EQUIPMENT AND INJURY
TO PERSONNEL.
NOTICE
THIS ENGINE USES A FUEL/OIL MIXTURE. DO
NOT RUN ON STRAIGHT GASOLINE ONLY, EN-
GINE DAMAGE WILL OCCUR.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
11
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
INNER TINE
OUTER
TINE
HUB
COLLARS
HAIR
PIN
D C B A
TINE SHAFT
INNER HOLE
FIGURE 3
Starting and Stopping the Engine
• Move engine to a well ventilated area, outdoors, to
prevent carbon monoxide poisoning.
• Move to an area away from ames or sparks, to avoid
ignition of vapors if present.
• Remove all debris from air cleaner holes and gas cap to
ensure proper air ow.
Cold Engine Start (SEE FIGURE 4 on following page):
Starting engine for rst time or after engine has cooled o or
after running out of fuel.
1. Prime unit until primer hose is lled with gas.
NOTE:When using the primer bulb, allow the bulb to
return completely to its original position between
pushes.
2. Move choke lever to CHOKE position.
NOTE: CHOKE position is dened by moving the choke
lever as far to the CHOKE position as possible.
3. Push ON/OFF switch to the ON position.
4. Hold handle bar rmly. Grasp starter handle with other
hand and pull out slowly, until it pulls slightly harder.
Without letting starter handle retract, pull rope with a rapid
order so that they are positioned left to right A, B, C, D,
as viewed from the user’s position on the tiller cultivator.
Make sure that the hub collars on both the right and left
pairs of tines face each other so that there is adequate
spacing between the tine blades.
3. Insert the hairpins into the holes at each end of the tine
shaft to lock the tines into place.
NOTE:Tines can be reversed so the pointed tip of the tines
are directed forward - for more aggressive digging.
In this arrangement, tines are positioned left to
right D, C, B, A as viewed from the user’s position.
To reduce tilling width from 10 inches to 6 inches,
remove both outer tines and reinsert hairpins
through the two inner holes on the tine shaft to
secure both inner tines in place.
full arm stroke. Let it return to its original position very
slowly. Repeat this step every time the starter rope is pulled
until unit res or runs.
NOTE:If engine fails to start after 5-6 pulls, push primer 1
time and pull starter rope again.
5. After engine starts running, move choke lever to HALF
CHOKE position until unit runs smoothly.
NOTE: Half choke is dened when the choke lever is
positioned between CHOKE and RUN.
6. Move choke lever to RUN position and squeeze throttle to
desired speed.
NOTE:Run at full throttle when possible. Do not let unit
idle for extended periods of time.
7. To stop engine, push ON/OFF switch to OFF position.
Hot/Warm Engine Start:
1. Begin with Step 3 of Cold Engine Starting.
2. If engine does not re, refer to Step 1 of Cold Engine
Starting.
Note: If engine fails to start after trying starting
procedures, please contact our customer service
department at 800-345-6007.
WARNING
MAKE SURE THE UNIT IS IN A STABLE POSI-
TION BEFORE PULLING THE STARTER HANDLE.
WHEN THE UNIT STARTS TO FIRE OR RUN,
RETURN BOTH HANDS TO THE HANDLE
BAR POSITION TO MAINTAIN CONTROL AND
STABILITY OF THE UNIT.
STARTER ROPE CAN CAUSE AN UNANTICI-
PATED JERK TOWARDS ENGINE. PLEASE
FOLLOW INSTRUCTIONS TO AVOID INJURY.
NEVER LEAVE ENGINE RUNNING WHILE
UNATTENDED. TURN OFF AFTER EVERY USE.
NEVER CARRY TILLER CUL-
TIVATOR FROM ONE
LOCATION TO ANOTHER WHILE ENGINE IS
RUNNING.
ALWAYS WEAR A PROTECTIVE HEARING
DEVICE.
DO NOT START ENGINE IF FUEL IS SPILLED.
WIPE OFF EXCESS FUEL AND ALLOW TO DRY.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
12 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
LOW
POSITION
MIDDLE
POSITION
HIGH
POSITION
EXPANDED
SPRING
LOCKING METAL
SLEEVE
(LOCKED POSITION)
COMPRESSED
SPRING
LOCKING METAL
SLEEVE
(UNLOCKED POSITION)
LOCK PIN
DRAG STAKE
Adjusting Wheels and Drag Stake
The wheels on the tiller cultivator can be adjusted to one of three
positions. The LOW wheel position is used for transporting the
tiller cultivator across a smooth level surface while the engine is
not running. The MIDDLE and HIGH wheel positions are used
when tilling in soil and help stabilize the unit when tilling at
dierent depths. SEE FIGURE 5
To Adjust Wheels Up Or Down do as follows:
SEE FIGURES 5 & 6:
1. Pull the locking metal sleeve against the spring, away from
the vertical guide until it releases from one of the three
notched positions in the vertical guide.
2. Slide the wheel set up or down to the desired position, and
release the locking metal sleeve until it locks into desired
notch in the vertical guide.
To Adjust the Drag Stake do as follows: SEE FIGURE 7
The drag stake is used to help regulate tilling depth and control
the tiller cultivator from leaping forward during operation.
Resistance to forward motion is greatest when the drag stake is
set in its lowest position allowing for deeper cultivation.
1. Pull the lock pin out of the drag stake mount hole.
2. Position drag stake so the pointed tip is directed downward.
3. Insert lock pin into the hole that achieves desired depth.
FIGURE 4
CHOKE
RUN
ON/OFF
SWITCH
PRIMER
BULB
FIGURE 5
FIGURE 6
FIGURE 7
WARNING
DO NOT ATTEMPT TO START ENGINE IN THE
FOLLOWING WAYS:
• DO NOT USE STARTING FLUID
• DO NOT SPRAY FLAMMABLE LIQUIDS OR
VAPORS INTO AIR CLEANER, CARBURE-
TOR, OR SPARK PLUG CHAMBER.
• DO NOT REMOVE SPARK PLUG AND
ATTEMPT TO START ENGINE. FLAMMABLE
FUEL CAN SPRAY OUT AND IGNITE FROM
A SPARK FROM SPARK PLUG.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
13
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
SPARK PLUG WIRE
MAINTENANCE AND STORAGE
Steps For Working On Equipment (SEE FIGURE 8):
1. Turn engine switch to the OFF position.
2. Disconnect the spark plug wire from the spark plug.
3. Securely place the disconnected spark plug wire away
from the spark plug and any metal parts. This must always
be done or arcing may occur between spark plug wire and
metal parts.
4. Replace or repair the part on the cultivator.
5. Check all parts that were repaired, or removed during
repair, that they are secure and t correctly.
NOTE:All repair parts must come from the factory. Never
replace parts that are not specically designed for
the tiller cultivator.
6. Reconnect the spark plug wire.
Tiller Cultivator Maintenance
1. Keep all screws, nuts, and bolts tight.
2. For cold weather operation, store the unit in a cool
FIGURE 8
environment. Transferring the unit from a cold to a warm
place can cause the build up of harmful condensation.
Engine Maintenance
Please read the maintenance schedule and observe these
recommendations to extend the life of your engine.
Good maintenance is essential for safe, economical, and trouble-
free operation. It will also help reduce air pollution. To help
you properly care for your engine, the following pages include
a maintenance schedule, routine inspection procedures, and
simple maintenance procedures using basic hand tools. Other
service tasks that are more dicult, or require special tools, are
best handled by professionals and are normally performed by a
technician or other qualied mechanic.
Maintenance, replacement or repair of the emissions control
devices and systems may be performed by any non-road
engine repair establishment or individuals. However, items
must be serviced by an authorized dealer to obtain "no
charge" emissions control service.
The maintenance schedule applies to normal operating
conditions. If you operate your engine under unusual conditions,
such as sustained high-load or high-temperature operation, or
use in unusually wet or dusty conditions, consult your servicing
dealer for recommendations applicable to your individual needs
and use.
MAINTENANCE ITEM
Every 8
hours
(daily)
Every 20
hours or
seasonally
Each
Year
Clean Engine and
Check Bolts & Nuts
X
Air Filter Check X
(See Air Filter section) Clean * X
Replace X X
Spark Plug
(Gap 0.028”)
Check/
Adjust
X
(See Spark Plug section) Replace X
* Service more frequently under dusty conditions
Maintenance Schedule
WARNING
PRACTICE SAFETY AT ALL TIMES. ENGINE
MUST BE TURNED OFF AND ALLOWED TO
COOL, AND SPARK PLUG WIRE MUST BE DIS-
CONNECTED BEFORE ATTEMPTING ANY
MAINTENANCE OR REPAIR.
TO PREVENT ACCIDENTAL STARTING:
ENGINE MUST BE TURNED OFF AND COOL,
AND SPARK PLUG WIRE MUST BE REMOVED
FROM SPARK PLUG BEFORE CHECKING AND
ADJUSTING ENGINE OR EQUIPMENT.
TEMPERATURE OF MUFFLER AND NEARBY
AREAS MAY EXCEED 150° F (65° C). AVOID
THESE AREAS.
CHECK TILLER CULTIVATOR OFTEN FOR
LOOSE NUTS AND BOLTS. KEEP THESE ITEMS
TIGHTENED.
NEVER STORE ENGINE WITH FUEL IN THE
TANK INSIDE A BUILDING. POTENTIAL
SPARKS MAY BE PRESENT FOR IGNITION OF
FUEL AND FUEL VAPORS.
AN ADULT MUST ALWAYS DO MAINTENANCE
AND REPAIR ON ENGINE AND CULTIVATOR.
ENGINE MUST BE SHUT-OFF, COOL, AND
SPARK PLUG WIRE REMOVED BEFORE ANY
REPAIR OR MAINTENANCE CAN BE DONE.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
14 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
LATCH
TABS
FILTER
REINFORCEMENT
PLATE
FOAM
FILTER
ELEMENT
LATCH TAB RECEIVER
(BOTH SIDES)
AIR FILTER COVER
NOTICE
DO NOT TWIST AIR FILTER WHEN CLEANING,
ALWAYS PRESS. TWISTING OR TOO MUCH FORCE
CAN DAMAGE THE FILTER ELEMENT.
Spark Plug
The recommended spark plug is a Torch L7RTC which cross
references to a Champion RCJ6Y.
1. Check spark plug at the beginning of each season.
2. Disconnect the spark plug cap, and clean any debris from
around the spark plug area.
3. Remove spark plug and replace if any of the following
occur; pitted electrodes, burned electrodes, cracked
porcelain, or deposits around electrodes.
4. After analysis, seat spark plug and tighten with spark plug
wrench. Reconnect the spark plug wire.
• Reinstall original spark plug, tighten additional 1/2 turn.
• Installing new spark plug, adjust spark plug gap to
0.027 inch and tighten additional 1/8 – 1/4 turn .
NOTE: A loose spark plug may overheat and damage
engine. An over tightened spark plug may damage
threads in the cylinder head.
Cooling Fins
Cooling ns, air inlets and linkages must be free from any debris
before each use.
Carburetor
Never tamper with factory setting of the carburetor.
Air Filter
Never run engine without air cleaner properly installed. Added
wear and engine failure may occur if air cleaner is not installed
on engine.
Service air cleaner every 3 months or after 20 hours of operation.
Clean lter daily in extremely dusty conditions.
To Replace or Clean Air lter, do as follows:
1. Before removing the air lter cover, move the choke lever
to the CHOKE position.
2. To remove air lter cover, squeeze the latch tabs on both
sides of the cover. SEE FIGURE 9
3. Once the latch tabs are released, remove the air lter cover
by rotating the cover away from the engine.
4. Remove the foam lter element. Replace with a new oiled
foam lter or clean the original foam lter with warm water
and mild soap.
5. After cleaning, thoroughly oil the foam lter with 30 or
40 weight motor oil and squeeze out any excess oil before
reinstalling it. Make sure to press the foam lter evenly
into place over the lter reinforcement plate to ensure that
the foam is fully seated into its sealed position.
6. Replace the air lter cover so that it fully snaps into place
and is secured by the latch tabs. Check that the cover is
securely attached by pulling slightly on the cover. If the
cover doesn’t move when pulled, it is secure.
Transporting Your Tiller Cultivator
1. After using the tiller cultivator and before transporting
it, screw the gas cap on (clockwise) tightly. The gas cap
will not leak during transporting if gas cap is tight. Never
transport engine inside an enclosed space within a vehicle.
Fuel or fuel vapors may ignite causing serious injury or
death.
2. If fuel is present in the fuel tank, transport in an open
vehicle in an upright position.
3. If an enclosed vehicle must be used, remove gas into an
approved red fuel container. DO NOT siphon by mouth.
4. Run engine to use up the fuel in the carburetor and fuel
tank. Always run engine in a well ventilated area.
5. Wipe away any spilled fuel from engine and tiller
cultivator. Allow to dry.
6. Ensure gas cap is shut tightly before transporting tiller
cultivator in a vehicle.
FIGURE 9
DANGER
DO NOT SIPHON FUEL BY MOUTH. GASOLINE
IS TOXIC AND CAN CAUSE SERIOUS PERSON-
AL INJURY.
NEVER STORE TILLER CULTIVATOR WITH
FUEL IN THE FUEL TANK INSIDE AN EN-
CLOSED AREA OR BUILDING. FUEL VAPORS
CAN COLLECT AND CAUSE A FIRE.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
15
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
Long-Term Storage
If your tiller cultivator will not be used for more than one month,
prepare it for long term storage.
Steps for Long-Term Storage
1. Mix an appropriate amount of fuel stabilizer to fresh
gasoline in the ratio recommended on the stabilizer
packaging. Run the engine for ve minutes to distribute
the stabilizer mixture throughout the fuel system. This will
prevent gum, varnish and corrosion build up in your fuel
system during long-term storage for up to 12 months.
2. Store tiller cultivator in an upright position.
3. Remove all debris from tiller cultivator tines and engine.
TROUBLESHOOTING AND REPAIR
At Earthquake, we build quality and durability into the design of
our products; but no amount of careful design by us, and careful
maintenance by you, can guarantee a repair-free life for your
Earthquake Tiller Cultivator. Most repairs will be minor, and
easily xed by following the suggestions in the troubleshooting
guide in this section.
The guide will help you pinpoint the causes of common
problems and identify remedies.
For more complicated repairs, you may want to rely on an
authorized service center or Earthquake. Earthquake will make
the necessary repairs if a service center is not available. A parts
breakdown is located toward the end of this manual.
We will always be glad to answer any questions you have, or
help you nd suitable assistance.
Ordering Replacement Parts
Parts can be obtained from an authorized service dealer or direct
from the factory. To order parts visit;
www. getearthquake.com or call 1-800-345-6007.
Please include the following information with your order:
1) Part numbers
2) Part description
3) Quantity
4) Model number and serial number
Spare Parts
Only use approved Earthquake service parts.

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
16 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE REMEDY/ACTION
Engine will not start 1. Ignition switch o 1. Flip switch to ON position
2. Spark plug wire disconnected 2. Connect spark plug wire to spark plug
3. Out of fuel 3. Refuel
4. Spark plug wet, faulty or improperly
gapped
4. Clean, replace or gap spark plug
5. Fuel line hose not positioned in bottom
of gas tank
5. Push fuel line down into fuel in gas tank
Engine runs rough, oods
during operation
1. Dirty air lter 1. Clean or replace air lter
2. Choke partially engaged 2. Move choke lever to run position
3. Carburetor out of adjustment 3. Call customer service
Engine is hard to start 1. Stale fuel 1. Drain old fuel and replace with fresh fuel. Use
fuel stabilizer at end of season or during long term
storage
2. Spark plug wire loose 2. Make sure spark wire is securely attached to spark
plug
3. Dirty carburetor 3. Clean carburetor, use fuel stabilizer, new gas can
4. Fuel not primed suciently 4. Prime unit 3 more times, then pull recoil handle
Engine misses or lacks
power
1. Clogged fuel lter 1. Clean fuel tank, replace fuel lter
2. Clogged air lter 2. Clean or replace air lter
3. Carburetor out of adjustment or bad 3. Call customer service
4. Spark plug wet, faulty or improperly
gapped
4. Clean, replace or gap spark plug
Engine runs, then quits 1. Gas cap not venting 1. Clean or replace gas cap, check vent
2. Plugged fuel lter 2. Clean or replace fuel lter
3. Carburetor out of adjustment or bad 3. Call customer service
Engine revs too high 1. Carburetor out of adjustment 1. Call customer service
Tines turn at idle 1. Idle speed too high 1. Adjust idle speed lower
2. Broken clutch spring 2. Replace clutch
NOTES:

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
17
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
21
20
19
18
23
22
17
9,12,14,53
9,11,53
8,9,54,55
9,10
45
2,7
2,6,9,14,53
2,5
2,4
1,2
3
45,46 47
13,14 14,16
14,15 44,45
48,49
49
49,50 49,51
25,45 52
13,45
43 24,37
13
25
26,27
27
28
29
35
34,35
33,35
35
31,35
30,35
25
24
24,36
24,37 24,37,38
24
24,39 24,40
41
42
32,35
ILLUSTRATED PARTS BREAKDOWN: ENGINE ASSEMBLY

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
18 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
ILLUSTRATED PARTS BREAKDOWN: ENGINE ASSEMBLY
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
1 3004158 AIR FILTER COVER 1
2 15230 KIT AIR FILTER ASSEMBLY 1
3 1021 ROCKER SWITCH 1
4 3004156 FOAM ELEMENT AIR FILTER
BLOCK
1
5 3004157 AIR FILTER
REINFORCEMENT FRAME
1
6 15209 BOLT M5 X 52 WITH WASHER 2
7 3004150 AIR FILTER BASE ASSEMBLY 1
8 15261 CARBURETOR 43CC NO
TAMP
1
9 11334 KIT CARBURETOR
REPLACEMENT
1
10 300481 CARBURETOR O-RING 1
11 3004109 CARBURETOR PRIMER BULB 1
12 300479 CARBURETOR GASKET 1
13 17952 BOLT M5 X 28 WITH WASHER 5
14 11205 KIT INTAKE MANIFOLD 1
15 300478 WINDPIPE INTAKE 1
16 300476 GASKET INTAKE 1
17 300335 BOLT M5 X 20 HEX HEAD
WITH WASHER
2
18 300482 ENGINE SHROUD RED 1
19 10887 BOLT M5 X 16 BUTTON HEAD
WITH WASHER
1
20 300483 ENGINE SHROUD CAP END
BLACK
1
21 300439 BOLT M5 X 20 BUTTON HEAD
WITH WASHER
1
22 26579 IGNITION COIL 1
23 35906 SPARK PLUG L7RTC TORCH 1
24 10683 KIT GAS TANK 1
25 17946 BOLT M5 X 20 WITH WASHER 7
26 3004121 RECOIL HANDLE 1
27 300430 RECOIL ASSEMBLY 1
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
28 300429 RECOIL SPACER PLATE 1
29 300491 RECOIL CLUTCH CUP 1
30 300493 STUD M6 X 62 2
31 300475 GASKET MUFFLER HEAT
SHIELD
1
32 300471 BOLT M5 X 12 WITH WASHER 1
33 17888 BOLT M5 X 12 SOCKET HEAD
WITH WASHER
1
34 300492 NUT M6 X 1 HEX FLANGE 2
35 25977 KIT MUFFLER STRAIGHT
EJECTION DPS30
1
36 11190 SPACER M5 X 4 NYLON 4
37 3004105 KIT FUEL LINE TWO HOLE
GROMMET
1
38 3004103 FUEL FILTER 1
39 11936 GAS CAP TWO WAY SELF
VENTING
1
40 4647 BOLT M6 X 18 HEX FLANGE 4
41 300332 GAS TANK SHROUD BLACK 1
42 300336 BOLT M6 X 10 HEX FLANGE 2
43 11189 SPACER M5 X 5 2
44 300338 KEY WOODRUFF 3 X 5 X 12 1
45 11209 KIT FLYWHEEL 1
46 300337 NUT M8 X 1.25 HEX FLANGE 1
47 300467 DOWEL PIN 5 X 12 2
48 300462 WASHER 15.8 X 8.4 X 1.6 2
49 11235 KIT CLUTCH 1
50 300449 WAVE WASHER 10 X 15 X 0.25 2
51 300450 BOLT M8 X 25 SHOULDER 10 2
52 300487 FLYWHEEL SHROUD 1
53 3004114 KIT CARBURETOR REPAIR 1
54 30029 ALTITUDE KIT 3000-6000 FT 1
55 30034 ALTITUDE KIT 6000-8000 FT 1

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
19
THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
1 4652 HAIR PIN, 5/8-3/4 IN 2
2 4601 TINE “A” RIGHT OUTSIDE 1
3 4603 TINE “B” RIGHT INSIDE 1
4 400023 NUT M8 NYLOCK 2
5 4641 WASHER M8 CURVED 4
6 26013 TRANSMISSION ASSEMBLY 1
7 46141 BOLT M8 X 1.25 X 155 2
8 4602 TINE “C” LEFT INSIDE 1
9 4604 TINE “D” LEFT OUTSIDE 1
10 4687 BOLT M10 X 1.5 X 231 1
11 2431 WASHER M10 NARROW
FLAT
2
12 13189 WHEEL 180 X 38 MM 2
13 4678 GUIDE WHEEL TUBE 1
14 15104 HANDLEBAR LOWER 1
15 4629 NUT M10 X 1.5 1
16 4674 WHEEL TUBE 1
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
17 18039 PIN LOCK 8 MM X 40 MM 1
18 4650 NUT M6 NYLOCK 2
19 W1200117 WASHER M6 X 13 X 1.75 FLAT 2
20 4673 WHEEL HOLDER 1
21 4600 DRAG STAKE 1
22 176 BOLT M5 X 0.8 X 10 2
23 23441 TINE SHIELD 2
24 400020 NUT M5 X 0.8 NYLOCK
FLANGE
2
25 4625 BOLT M6 X 1.0 X 42 4
26 4684 TUBE WHEEL LOCK 1
27 4685 SPRING WHEEL LOCK 1
28 13230 WASHER 21 X 16 X 1 MM 1
29 46142 BOLT M6 X 1.0 X 15 2
30 23433 ENGINE MC43 VIPER 1
12
345
30
6
5
7
8
9
1
15
11
12
23
27
28
26
22
21
20
24
25
18
19
17
29
10
11
13
14
16
(SEE DETAIL BREAKDOWN NEXT PAGE)
ILLUSTRATED PARTS BREAKDOWN: HOOD AND TINES

Operator’s Manual
MC43 2-Cycle Tiller Cultivator
20 THIS INSTRUCTION BOOK CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
1 26013 TRANSMISSION ASSEM-
BLY
1
2 46144 DUST CAP 2
3 4606 FIBER WASHER 2
4 4646 TINE SHAFT SEAL 2
6 4650 NUT M6 NYLOCK 2
7W1200117 WASHER M6 X 12 X 1 MM 4
8 4633 WHEEL & DRAG STAKE
MOUNT
1
9 13600 BOLT M6 X 1.0 X 25 2
10 25159 TINE SHAFT BUSHING
STEEL
2
11 4610 TINE SHAFT SHIM 2
12 4651 GEAR AND TINE SHAFT
ASSY
1
13 4616 BUSHING SPACER 1
ITEM
NO.
PART
NO.
DESCRIPTION QTY.
14 4614 DRIVE SHAFT BUSHING
BRONZE
2
15 21953 DRIVE SHAFT 1
16 4617 THRUST BEARING RE-
DUCER
1
17 4618 THRUST WASHER 2
18 4619 THRUST BEARING CAGE 1
19 4623 BALL BEARING 9 X 26 X 8
MM
1
20 300414 CLUTCH DRUM 1
21 4620 JAM NUT M8 1
23 4647 BOLT M6 X 1.0 X 18 HEX
FLANGE
6
24 13447 BOLT M6 X 1.0 X 8 PHIL-
LIPS
2
25 4615 KIT THRUST BEARING SET 1
1
2
3
416
7
8
9
10 11 12
2
3
4
11 10
13
14
15
16
17, 25 18, 25
14
20
21
1
7
24
19
23
23
23
ILLUSTRATED PARTS BREAKDOWN: TRANSMISSION