Page 1
Operator's Manual
Original Operating Instructions
MC25
2-Cycle Cultivator
SN
Get parts online at
www.GetEarthquake.com
Includes Model:
22255
P/N: 22261
ECN: 11325
REV1: 10/01/16
© 2016 Ardisam, Inc.
All Rights Reserved
Page 2
Operator's Manual
MC25 2-Cycle Cultivator
INTRODUCTION
Thank you for purchasing a cultivator from Earthquake®. We have worked to ensure that this cultivator meets the highest
standards for usability and durability. With proper care, your 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 and Specications ...................................................................................................................................................................................................... 8
Unpacking and Assembly ......................................................................................................................................................................................................... 9
Operation ............................................................................................................................................................................................................................... 10-11
Maintenance and Storage ................................................................................................................................................................................................ 12-14
Troubleshooting and Repair ............................................................................................................................................................................................14-15
Illustrated Parts Breakdown.............................................................................................................................................................................................16-20
15073 Border-Edger Kit Installation (Optional Accessory) ..........................................................................................................................................21
15290 Drag Stkae Mount Kit Installation (Optional Accessory).................................................................................................................................22
DK43 Dethatcher Kit Installation (Optional Accessory) ................................................................................................................................................23
Warranty ........................................................................................................................................................................................................................................24
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
(800) 345-6007 Mondays through Fridays from 8 a.m. to 5 p.m. CST.
OWNERSHIP RECORDS
Owner’s Name:
Owner’s Address:
City: State/Province: Zip Code/Postal Code:
Model Number: Serial Number:
Date of Purchase:
Notes:
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
LOCATION
2
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Page 3
Operator's Manual
MC25 2-Cycle Cultivator
WARNINGS AND SAFETY PRECAUTIONS
Owner’s Responsibility
Accurate assembly and safe and eective 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.
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:
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 DAMAGE.
DANGER
DANGER INDICATES A HAZARD WHICH, IF NOT
AVOIDED, WILL CERTAINLY RESULT IN DEATH OR
SERIOUS INJURY AND/OR PROPERTY DAMAGE.
IMPORTANT
IMPORTANT INDICATES HELPFUL INFORMATION
FOR PROPER ASSEMBLY, OPERATION, OR
MAINTENANCE OF YOUR EQUIPMENT.
Please read this section carefully. Read entire operating and
maintenance instructions for this product. Failure to follow
instructions could result in 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 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
WARNING
CALIFORNIA PROPOSITION 65 WARNING
ENGINE EXHAUST FROM THIS PRODUCT
CONTAINS CHEMICALS KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS,
OR OTHER REPRODUCTIVE HARM.
WARNING
YOU MUST READ, UNDERSTAND AND COMPLY
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 PERSONAL
INJURY TO YOU AND/OR BYSTANDERS, AND RISK
OF EQUIPMENT AND PROPERTY DAMAGE. THE
TRIANGLE IN THE TEXT SIGNIFIES IMPORTANT
CAUTIONS OR WARNINGS WHICH MUST BE
FOLLOWED.
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3
Page 4
Operator's Manual
MC25 2-Cycle Cultivator
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 articial light.
• Do not operate product when fatigued or under the
inuence of alcohol, drugs or other medication which
can cause drowsiness or aect 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.
• Watch for trac 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 muer and nearby areas may exceed
150° F (65° C). Allow muer 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-Specic Safety Rules
• Do not cultivate 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 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.
• 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 ecient
operation.
4
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Page 5
Operator's Manual
MC25 2-Cycle Cultivator
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 SYMPTOMS,
SEEK FRESH AIR AND MEDICAL ATTENTION
IMMEDIATELY.
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 muer
pointed in the direction away from the operator.
• Never point the exhaust muer 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 overspeed 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.
CAUTION
HOT GASES ARE A NORMAL BYPRODUCT OF A
FUNCTIONING INTERNAL COMBUSTION ENGINE.
FOLLOW ALL SAFETY INSTRUCTIONS 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 OR STOP
POSITION.
• 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 specically
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 relling 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 cultivator.
Always wear sturdy footwear. Never wear sandals,
sneakers or open shoes, and never operate the
cultivator with bare feet. Do not wear loose clothing
that might get caught in moving parts.
• Carefully inspect the area to be cultivated and
remove all foreign objects. Do not cultivate above
underground water lines, gas lines, electric cables, or
pipes. Do not operate the cultivator in soil with large
rocks and foreign objects which can damage the
equipment.
• Disengage all clutches and leave control lever in the
neutral position before starting the engine.
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5
Page 6
Operator's Manual
LEFT RIGHT
MC25 2-Cycle Cultivator
• 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.
NOTICE
THE RIGHT AND LEFT SIDES
OF YOUR CULTIVATOR ARE
DETERMINED FROM THE
OPERATING POSITION AS
YOU FACE THE DIRECTION OF
FORWARD TRAVEL.
THE 2CYCLE ENGINE USES A
50:1 RATIO OF GAS:OIL.
DO NOT USE STRAIGHT UNMIXED GASOLINE OR
ENGINE DAMAGE WILL OCCUR.
THIS IS A MOTORIZED CULTIVATOR THAT WORKS
THE SOIL BY MEANS OF ROTATING TINES. IT
IS PEDESTRIAN CONTROLLED, BUT NOT SELF
PROPELLED, AND USES A GASOLINEFUELED
INTERNAL COMBUSTION ENGINE TO POWER THE
TINES. IT SHALL NOT BE USED FOR ANY OTHER
PURPOSE.
• Do not overload the machine capacity by attempting
to till too deep at too fast of a rate.
• Never operate the cultivator without good visibility or
light.
• 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 cultivator maintenance.
• Never run the engine indoors. Exhaust fumes are
deadly.
• Always allow muer 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 cultivator is to be stored for an
extended period.
OPERATION PRECAUTIONS
• Do not operate cultivator under the inuence of
alcohol or drugs.
• Never operate cultivator without guards, covers, and
hoods in place.
• Keep hands, feet, and clothing away from rotating
parts. Keep clear of cultivator tines at all times.
• Tines rotate when cultivator is engaged; tines rotate
when the drive safety control lever is pulled down.
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 trac.
• After striking a foreign object, stop the engine,
remove the wire from the spark plug, thoroughly
inspect the cultivator for any damage, and repair
the damage before restarting and operating the
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.
BURNS AND FIRES
The muer, muer 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 muer guard from the engine.
• Never touch the muer 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 muer 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.
6
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Page 7
Operator's Manual
MC25 2-Cycle Cultivator
• Never allow children to operate the machine.
• Use extra care when approaching blind corners, shrubs, trees,
or other objects that may obscure vision.
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 or STOP 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 specically 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.
• To guard against engine over-heating, always have engine
debris lter mounted and clean.
• Inspect machine before storage. When not in use, ip the ON/
OFF switch to the OFF or STOP 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.
SAFETY DECALS
This 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 eectively. We have placed
a safety decal on the cultivator to remind you of some of this
important information while you are operating the unit.
These important safety decals are illustrated below, and are
shown here to help familiarize you with the location and
content of the safety messages you will see as you perform
normal cultivating 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
Cultivator Warning Decal - Tine Shield
Part No. 17301
Throttle Control Decal - Right Handlebar
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Part No. 17918
Free Hand Safe Starting Location Decal -
Left Handlebar
7
Page 8
FEATURES
Operator's Manual
MC25 2-Cycle Cultivator
STORAGE POSITION
TOOL-LESS HEIGHT
FRONT BUMPER
(TRANSPORT &
STORAGE)
ADJUSTMENT
ON/OFF SWITCH
THROTTLE
CONTROL
LEVER
U-TURN™
HANDLEBAR
SEE THROUGH
FUEL TANK
SPECIFICATIONS
ENGINE DISPLACEMENT 25cc
FUEL TANK CAPACITY 22 -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 manufacturer
specications, is
recommended.
TOOL-LESS
REPLACEABLE &
REVERSIBLE TINES
* For helpful hints and tips for using your cultivator,
check out one of the informative cultivating videos
on www.getearthquake.com.
SPARK PLUG L8RTC
SPARK PLUG GAP 0.028 inch
TRANSMISSION Bronze gear drive
GEAR RATIO 32:1
TILLING WIDTH 6 inch min. - 10 inch max.
TILLING DEPTH 8 inch max.
TINE SPEED Variable 375 rpm max.
WEIGHT OF UNIT 24 lb
WORKING SIZE L X W X H 35.0 x 17.7 x 38.7 inch
STORAGE SIZE L X W X H 25.1 x 17.7 x 42.9 inch
8
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Page 9
UNPACKING AND ASSEMBLY
Unpack Cultivator
1. Carefully lift the cultivator out of the box, remove any
packing material and cut any zip ties. SEE FIGURE 1
2. Find parts packet. Parts packet contains:
• 4 - Three-Knob Nuts (25622)
• 4 - Curved Washers (4641)
• 4 - Saddle Bolts (4642)
• 1 - Hairpin (4652)
VIPER 2-CYCLE
OIL BOTTLE
CULTIVATOR
ASSEMBLY
HARDWARE
PARTS BAG
U-TURN™
HANDLEBAR
ASSEMBLY
RIGHT
HANDLEBAR
U-TURN™
HANDLEBAR
ASSEMBLY
RIGHT MIDDLE
HANDLEBAR
THREE-KNOB
NUT
Operator's Manual
MC25 2-Cycle Cultivator
CURVED
WASHER
SADDLE
BOLT
LEFT MIDDLE
HANDLEBAR
TINE “B”
TINE “A”
MANUAL
PARTS BAG
LEFT HANDELBAR
FIGURE 1
Assembly
1. Stand the cultivator assembly on a level surface. DO NOT
place the cultivator on a high surface where it can fall and
cause property damage or personal injury.
2. Place tine “B” on the tine shaft, followed by tine “A”.
Secure tines with hair pin. SEE FIGURE 2
3. Using two three-knob nuts, two saddle bolts, and
two curved washers, attach the middle handlebars to
the lower handlebar that is already connected to the
cultivator assembly. The middle handlebars can be
installed in one of two positions, one high and one low.
DO NOT overtighten the three-knob nuts. SEE FIGURE 3
4. Attach the U-turn™ handlebar assembly to the middle
handlebars using the two remaining three-knob nuts,
saddle bolts, and curved washers. DO NOT overtighten
the three-knob nuts. SEE FIGURE 3
HAIRPIN
FIGURE 3
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 VENTILATED
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.
TINE “B”
FIGURE 2
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TINE “A”
9
Page 10
Operator's Manual
ABCD
MC25 2-Cycle Cultivator
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 ecient operation.
2. Cultivate without placing excessive body weight on the
unit. The cultivator operates most eciently with the
weight of the unit itself.
Preparing Engine for Starting
Mixing Fuel and Filling the Fuel Tank
IMPORTANT:
To operate the engine, we recommend 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 throughout the life of the
engine. Use premium gasoline, low/no ethanol
blends recommended.
NOTE: Engine must be run with a 50:1 Gas:Oil ratio.
GAS OIL RATIO
1 gallon 2.6 ounces 50:1
2 gallons 5.1 ounces 50:1
5 gallons 13 ounces 50:1
7. Immediately replace fuel cap and tighten. Wipe o spilled
fuel and allow to dry before starting engine.
IMPORTANT
THIS ENGINE USES A GAS/OIL MIXTURE. DO NOT
RUN ON STRAIGHT GAS ONLY, ENGINE DAMAGE
WILL OCCUR.
Tine Removal and Installation
To Remove Tines, do as follows: SEE FIGURE 4
1. Remove the hairpins from each end of the tine shaft.
2. Slide the four tines o the shaft.
To Install Tines
1. Slide the inside tines onto each end of the tine shaft. One
inside tine is stamped with a B and the other is stamped
with a C.
2. Slide the outside tine A and tine D onto each end of the
shaft next. The tines should be installed in the correct
order so that they are positioned left to right A, B, C, D,
as viewed from the user’s position on the 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.
1. Fuel must be mixed in a U.L. or ASTM approved fuel
container outdoors in a well ventilated area.
2. Fill fuel container 1/4 full of recommended fuel.
3. Add recommended amount of 2-cycle oil.
4. Screw container fuel cap on straight and tight.
5. Shake the container to mix fuel and oil.
6. Unscrew container fuel 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.
Filling Fuel Tank
1. Shut-o engine and allow engine to completely cool
before relling 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.
5. Carefully add fuel without spilling.
6. Do not ll fuel tank completely full, allow space for fuel to
expand.
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 cultivating width from 10” to 6”, remove
both outer tines and reinsert hairpins through the
two inner holes on the tine shaft to secure both
inner tines in place.
HUB
COLLARS
HAIRPIN
TINE SHAFT
INNER HOLE
FIGURE 4
INNER TINE
OUTER TINE
10
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Page 11
WARNING
MAKE SURE THE UNIT IS IN A STABLE POSITION
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 UNANTICIPATED
JERK TOWARDS ENGINE. PLEASE FOLLOW
INSTRUCTIONS TO AVOID INJURY.
NEVER LEAVE ENGINE RUNNING WHILE
UNATTENDED. TURN OFF AFTER EVERY USE.
NEVER CARRY CULTIVATOR 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.
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:
Starting engine for rst time or after engine has cooled o or
after running out of fuel.
1. Move choke lever to RUN position. SEE FIGURE 5
NOTE: Choke lever must be in the RUN position when
pushing or using the primer bulb.
2. Prime unit with primer bulb 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.
3. Move choke lever to CHOKE position. SEE FIGURE 5
NOTE: CHOKE position is dened by moving the choke
lever as far to the CHOKE position as possible.
4. With the fuel primer button depressed, press the primer
bulb ONCE. SEE FIGURE 5
5. Push ON/OFF switch to the ON or RUN position.
6. Hold handle bar rmly. Grasp recoil handle with other
hand and pull out slowly, until it pulls slightly harder.
Without letting recoil handle retract, pull rope with a
rapid full arm stroke. Let it return to its original position
very slowly. Repeat this step every time the recoil rope is
pulled until unit res or runs.
NOTE: If engine fails to start after 5-6 pulls, push primer 1
time and pull recoil rope again.
Operator's Manual
MC25 2-Cycle Cultivator
7. After engine starts running, move choke lever to HALF
CHOKE position until unit runs smoothly.
NOTE: Half choke is dened when the choke lever is
positioned between CHOKE and RUN.
8. Move choke lever to RUN position and squeeze throttle
lever to desired speed. SEE FIGURE 5
NOTE: Run at full throttle when possible. Do not let unit
idle for extended periods of time.
9. To stop engine, push ON/OFF switch to OFF or STOP
position.
Warm/Hot Engine Start:
1. Begin with Step 5 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.
DO NOT attempt to start engine in the following ways:
• DO NOT use starting uid.
• DO NOT spray ammable liquids or vapors into air
cleaner, carburetor or spark plug chamber.
• DO NOT remove spark plug and attempt to start
engine. Flammable fuel can spray out & ignite from a
spark from spark plug.
ON/OFF SWITCH
RECOIL
HANDLE
CHOKE
POSITION
FIGURE 5
RUN
POSITION
PRIMER BULB
FUEL PRIMER BUTTON
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11
Page 12
WARNING
PRACTICE SAFETY AT ALL TIMES. ENGINE MUST
BE TURNED OFF AND ALLOWED TO COOL, AND
SPARK PLUG WIRE MUST BE DISCONNECTED
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 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 SHUTOFF, COOL, AND
SPARK PLUG WIRE REMOVED BEFORE ANY
REPAIR OR MAINTENANCE CAN BE DONE.
MAINTENANCE AND STORAGE
Steps For Working On Equipment
1. Turn engine switch to the OFF position.
2. Disconnect the spark plug wire from the spark plug.
SEE FIGURE 6
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 specically designed for
the cultivator.
6. Reconnect the spark plug wire.
FIGURE 6
SPARK PLUG WIRE
Operator's Manual
MC25 2-Cycle Cultivator
Cultivator Maintenance
1. The transmission case has grease installed at the factory. It
is recommended to check grease level once a year. Add a
molylithium type grease into the lower grease port only if
the grease is below the level of the upper grease port. DO
NOT OVERFILL. SEE FIGURE 7
2. Keep all screws, nuts, and bolts tight.
3. For cold weather operation, store the unit in a cool
environment. Transferring the unit from a cold to a warm
place can cause the build up of harmful condensation.
UPPER
GREASE
PORT
LOWER
GREASE
PORT
FIGURE 7
Engine Maintenance
Refer to engine emission warranty included with your product
for maintenance schedule.
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 dicult, or
require special tools, are best handled by professionals and
are normally performed by a technician or other qualied
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.
12
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Page 13
Spark Plug
The recommended spark plug is a Torch L8RTC 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
0.028” and tighten additional 1/8 – 1/4 turn .
NOTE: Loose spark plug may overheat and damage
engine. 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:
(Block Style Foam Filter)
1. Before removing the air lter cover, move the choke lever
to the CHOKE position. SEE FIGURE 5 ON PAGE 11
2. To remove air lter cover, squeeze the latch tab and
rotate about cover pivot point to remove from air lter
base. SEE FIGURE 8
3. Remove the foam lter element and reinforcement plate.
Replace with a new oiled foam lter or clean the original
foam lter with warm water and mild soap. SEE FIGURE 9
4. 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 tab. Check that the cover is
securely attached by pulling slightly on the cover. If the
cover doesn’t move when pulled, it is secure.
Operator's Manual
MC25 2-Cycle Cultivator
CAUTION
DO NOT TWIST AIR FILTERS WHEN CLEANING. ALWAYS
PRESS. TWISTING OR TOO MUCH FORCE CAN DAMAGE THE
FILTER ELEMENT.
LATCH TAB
LATCH TAB
RETAINER
COVER
PIVOT POINT
FIGURE 8
AIR FILTER BASE
REINFORCEMENT PLATE
AIR FILTER
COVER
FIGURE 9
FOAM
FILTER
ELEMENT
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13
Page 14
WARNING
DO NOT SIPHON FUEL BY MOUTH. GASOLINE IS
TOXIC AND CAN CAUSE INJURY TO PERSONNEL.
NEVER STORE CULTIVATOR WITH FUEL IN THE
FUEL TANK INSIDE AN ENCLOSED AREA OR
BUILDING. FUEL VAPORS CAN COLLECT AND
CAUSE A FIRE.
Transporting Your Cultivator
1. After using the 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 cultivator.
Allow to dry.
6. Gas cap should be turned down tightly before
transporting cultivator in a vehicle.
FIGURE 10
STORAGE POSITION
Operator's Manual
MC25 2-Cycle Cultivator
Long-Term Storage
If your 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 cultivator in the storage position. SEE FIGURE 10
3. Remove all debris from 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 repairfree life for your Earthquake 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
your retailer, 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. To order parts or inquire
about warranty, call or e-mail us using the contact information
found in this section.
Ordering Replacement Parts
Parts can be obtained from the store where the cultivator was
purchased or direct from the factory. To order parts visit;
www. getearthquake.com or call 1-800-345-6007.
For other general questions, you can e-mail us at:
info@getearthquake.com.
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 spare parts.
14
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Page 15
Operator's Manual
MC25 2-Cycle Cultivator
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE REMEDY/ACTION
Engine will not start 1. Power switch o 1. Flip switch to ON or RUN 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
5. Fuel line hose not positioned in
bottom of gas tank
Engine runs rough, oods
1. Dirty air lter 1. Clean or replace air lter
during operation
2. Choke partially engaged 2. Turn o choke
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. Use gas
2. Spark plug wire loose 2. Make sure spark wire is securely attached to spark
3. Dirty carburetor 3. Clean carburetor, use gas stabilizer, new gas can
4. Fuel not primed suciently 4. Prime unit 3 more times, then pull recoil handle
Engine misses or lacks
power
1. Clogged gas tank 1. Remove and clean gas tank
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
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
4. Clean, replace or gap spark plug
5. Push fuel line down into fuel in gas tank
stabilizer at end of season
plug
4. Clean, replace or gap spark plug
2. Broken clutch spring 2. Replace clutch
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15
Page 16
Operator's Manual
18
28,29
MC25 2-Cycle Cultivator
ILLUSTRATED PARTS BREAKDOWN
11,15
11,14
11,13
11,12
11
8
6,7
6
1,5
2,5
3,5
5
4,5
Engine Assembly
17
34
15,34
35
39,40
40
40,41
40,42
40,43
44
9
11,16
10
36
38
37
33
19
22,24
29,31
29,30
20,22
21,22
22
22,23
25,29
26,29
27,29
29,31,
32
29
16
45
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Page 17
Operator's Manual
MC25 2-Cycle Cultivator
ILLUSTRATED PARTS BREAKDOWN
ITEM
NO.
1 26119 AIR FILTER COVER 1
2 26116 FOAM AIR FILTER ELEMENT 1
3 26114 ELEMENT REINFORCEMENT
4 26209 BOLT M5 X 0.8 X 55 MM 2
5 26075 KIT AIR FILTER HOUSING 1
6 27127 KIT CARBURETOR 1
7 26110 GASKET CARBURETOR 1
8 26208 BOLT M5 X 0.8 X 25 MM 2
9 26108 WINDPIPE CARBURETOR 1
10 26107 GASKET WINDPIPE 1
11 27128 KIT ENGINE SHROUD 1
12 26103 GROMMET ENGINE SHROUD 1
13 26104 CAP ENGINE SHROUD 1
14 26213 SPACER FIBER 5.5 X 12.5 X 4 MM 1
15 26207 BOLT M5 X 0.8 X 20 MM 3
16 26202 BOLT M4 X 0.7 X 12 MM 1
17 26095 RECOIL ASSEMBLY 1
18 26203 BOLT M4 X 0.7 X 16 MM 4
19 26098 CUP RECOIL CLUTCH 1
20 26210 BOLT M5 X 0.8 X 55 MM BLK OX 2
21 26129 CAP MUFFLER 1
22 27129 KIT MUFFLER 1
23 26105 GASKET MUFFLER MOUNT 1
PART
NO.
DESCRIPTION QTY.
PLATE
Engine Assembly
ITEM
NO.
24 26130 GASKET MUFFLER 1
25 26215 PAD FUEL TANK MOUNT 2
1
26 26120 BRACKET FUEL TANK MOUNT 1
27 26121 BOOT FUEL TANK MOUNT 1
28 26227 BOLT M5 X 0.8 X 16 MM 14 OD 2
29 27130 KIT FUEL TANK 1
30 26128 FUEL TANK CAP SELF VENTING 1
31 27131 KIT FUEL LINES 1
32 26122 FUEL FILTER 1
33 26102 SPARK PLUG TORCH L8RTC 1
34 27132 KIT IGNITION COIL 1
35 26097 FLYWHEEL 1
36 400024 WASHER M8 X 16 X 1.6 MM 1
37 21640 WASHER M8 SPRING LOCK 1
38 3252 NUT M8 X 1.25 HEX 1
39 26211 WASHER M6 X 15 X 1.1 BLK OX 2
40 27133 KIT CLUTCH ROTOR 1
41 25177 WASHER WAVE M8 2
42 25178 BOLT M6 X 1.0 X 21.75 MM 2
43 26212 STUD 4 X 10 X H8 MM 2
44 26100 FLYWHEEL SHROUD 1
45 26205 BOLT M5 X 0.8 X 16 MM 4
PART
NO.
DESCRIPTION QTY.
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17
Page 18
Operator's Manual
MC25 2-Cycle Cultivator
ILLUSTRATED PARTS BREAKDOWN
3
1
2
4
5
Hood & Tines Parts Explosion
7
6
12
13
14
8
9
6
10
11
15
16
ITEM
NO.
1 24808 FRONT BUMPER BLACK 1
2 4652 COTTER PIN 5/8 X 3/4 IN 2
3 4604 TINE "D" ASSEMBLY 1
4 4602 TINE "C" ASSEMBLY 1
5 24513 BOLT M8 X 1.25 X 165 HEX HEAD 2
6 4641 WASHER M8 CURVED 4
7 22254 ENGINE 25CC VIPER 1
8 26794 HANDLEBAR LOWER BLACK 1
9 400023 NUT M8 X 1.25 NYLOCK 2
10 4603 TINE "B" ASSEMBLY 1
11 4601 TINE "A" ASSEMBLY 1
12 22256 TRANSMISSION ASSEMBLY 32:1 1
13 176 BOLT M5 X 0.8 X 10 HEX FLANGE 2
14 27134 TINE SHIELD WITH WARNING 2
15 400020 NUT M5 X 0.8 NYLOCK FLANGE 2
16 25188 BOLT M5 X 0.8 X 40 HEX FLANGE 4
PART
NO.
DESCRIPTION QT Y.
18
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Page 19
Operator's Manual
MC25 2-Cycle Cultivator
ILLUSTRATED PARTS BREAKDOWN
1
2
2
3
2
4
5
6
1
7
Transmission Parts Explosion
12
13
14
11
16,17
15,16
18
8
9
10
11
19
8
7
ITEM
NO.
PART
DESCRIPTION QT Y.
NO.
1 22256 TRANSMISSION ASSEMBLY 32:1 1
2 25186 BOLT M6 X 1.0 X 18 HEX FLANGE 6
3 18250 BOLT M6 X 1.0 X 20 HEX FLANGE 2
4 46144 DUST CAP 2
5 4606 WASHER FIBER 19 X 38 X 4 MM 2
6 4646 SEAL 19 X 32 MM TINE SHAFT 2
7 25159 BUSHING M19 X 25.5 MM D SHAPE 2
8 4610 SHIM 32 X 19 X 2.2 MM TINE SHAFT 2
9 25173 DRIVE SHAFT WORM 1
10 4616 SPACER 22 X 11 X 2.2 MM BUSHING 1
ITEM
NO.
PART
NO.
12 4620 JAM NUT M8 X 1.25 HEX 1
13 25158 CLUTCH DRUM M8 THREADED 1
14 4623 BALL BEARING 9 X 26 MM 1
15 4618 WASHER 15 X 28 X 1.5 MM 2
16 4615 KIT THRUST BEARING 1
17 4619 THRUST BEARING 28 X 15 X 2 MM 1
18 4617 THRUST BEARING REDUCER 1
19 4651 TINE SHAFT WITH GEAR ASSEMBLY 1
W1200117
20 WASHER M6 X 13 X 1.75 MM 2
21 4650 NUT M6 X 1.0 NYLOCK 2
11 4614 BUSHING M11 X 19 MM D SHAPE 2
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1
6
4
5
20
21
DESCRIPTION QT Y.
19
Page 20
Operator's Manual
MC25 2-Cycle Cultivator
ILLUSTRATED PARTS BREAKDOWN
4,8
1
12
3
2
11
Handlebar Parts Explosion
6
5
7
8
10
9
13
14
15
20
ITEM
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PART
NO.
1 25440 SLEEVE CABLE PROTECTION 1
2 14645 THROTTLE CABLE SWIVEL FERRULE 1
3 26166 ON/OFF SWITCH ASSEMBLY 1
4 10888 BOLT M5 X 0.8 X 30 MM PHILLIPS 1
5 27136 KIT HANDLEBAR UPPER WITH WARNINGS 1
6 4639 HANDLEBAR GRIP 19.5 X 110 MM 2
7 12633 RUBBER PAD 15 X 29 MM 1
8 25988 KIT TRIGGER LONG THROW ASSEMBLY 1
9 25622 KNOB M8 X 1.25 THREE ARM BLACK 4
10 4641 WASHER M8 CURVED 4
11 24883 HANDLEBAR MIDDLE RIGHT BLACK 1
12 4642 BOLT M8 X 1.25 X 35 SADDLE HEAD 4
13 24884 HANDLEBAR MIDDLE LEFT BLACK 1
14 25625 PARTS BAG HARDWARE 1
15 22262 PARTS BAG MANUAL 1
DESCRIPTION QTY.
NO.
Page 21
15073 BORDEREDGER KIT INSTALLATION OPTIONAL ACCESSORY
The Border-Edger Kit is a useful tool for making clean cuts in
the lawn along the borders of gardens, ower beds, walkways,
and driveways for a well manicured look. To install the BorderEdger Kit, do the following:
INSTALLATION
1. Make sure the cultivator is not running by ipping the ON/
OFF switch to the OFF or STOP position.
2. Remove the hairpins from both sides of the tine shaft.
3. Remove the cultivating tines from the shaft, remembering
which direction they are facing.
4. Put the tines in a safe place and save the (2) hairpins, they will
be used on the Border-Edger Kit.
5. Slide the border-edger tine onto either side of the tine
shaft. Make sure that the hub collar of the border-edger tine
faces outward, away from the transmission of the cultivator.
SEE FIGURE 11
6. Take the (2) hairpins saved in Step 4 and insert them through
the inner and outer holes in the tine shaft on each side of the
border-edger tine to secure the tine blade in place on the
shaft. SEE FIGURE 11
7. Slide the border-edger wheel onto the opposite side of the
tine shaft as far as it will go.
8. Insert the remaining (1) hairpin, that came with the kit,
through the inner hole next to the wheel in the middle of the
tine shaft. SEE FIGURE 11
NOTE: A drag stake should not be used when using the
edger kit.
BORDER
EDGER
WHEEL
FIGURE 11
TINE SHAFT
HAIRPIN
EDGER TINE
Operator's Manual
MC25 2-Cycle Cultivator
BORDER
HUB
COLLAR
PARTS BREAKDOWN
ITEM
NO.
1 15009 BORDEREDGER TINE 1
2 46131 BORDEREDGER WHEEL 1
3 46134 HAIRPIN 1
PART NO. DESCRIPTION Q TY.
CAUTION
BE AWARE THAT THE CULTIVATOR COULD
UNEXPECTEDLY BOUNCE UPWARD, OR JUMP
FORWARD IF THE TINES STRIKE CONCRETE,
PAVEMENT, OR OTHER HARD SURFACES OR HARD
OBSTACLES BURIED UNDER GROUND.
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21
Page 22
15290 DRAG STAKE MOUNT KIT
OPTIONAL ACCESSORY
IMPORTANT
THE 15290 DRAG STAKE MOUNT KIT IS REQUIRED
TO USE THE DK43 DETHATCHER KIT.
The Drag Stake Mount Kit is very eective for adding stability and
depth control to your cultivator. The Drag Stake Mount Kit is a
mandatory accessory for using the DK43 Dethatcher Kit.
1. Flip the ON/OFF switch to the OFF or STOP position. Remove
the cultivating tines or other working tools.
Operator's Manual
MC25 2-Cycle Cultivator
DRAG STAKE
BOLT
2. Remove nuts and bolts from transmission mount holes and
set aside in a safe place for future use if removing the drag
stake mount kit.
3. Install drag stake mount to transmission using bolts (4649)
and nuts (4650). SEE FIGURE 12
4. Install drag stake and secure to the drag stake using lock pin
(18039) at the desired depth. SEE FIGURE 12
ITEM
PART
NO.
1 18039 LOCK PIN 8 X 40 MM 1
2 4600 DRAG STAKE 1
3 4633 DRAG STAKE MOUNT 1
4 4649 BOLT M6 X 1.0 X 25 MM HEX FLANGE 2
5 4650 NUT M6 NYLOCK 2
DESCRIPTION QTY.
NO.
FIGURE 12
NUT
TRANSMISSION
MOUNT HOLES
LOCK PIN
DRAG STAKE
MOUNT HOLE
DRAG
STAKE
MOUNT
22
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Page 23
DK43 DETHATCHER KIT INSTALLATION
OPTIONAL ACCESSORY
IMPORTANT
THE 15290 DRAG STAKE MOUNT KIT IS REQUIRED
TO USE THE DK43 DETHATCHER KIT.
The Dethatcher Kit is very eective for lifting away the excessive
matted layers of thatch that can prevent moisture, oxygen and
nutrients from penetrating the soil and can harbor disease and
insects. Use in Spring, Summer, and Fall to bring life and color
back to your lawn. The MC25 unit requires the 15290 Drag Stake
Mount Kit to properly mount and use the DK43 Dethatcher Kit.
1. Flip the ON/OFF switch to the OFF or STOP position. Remove
the cultivating tines or other working tools.
2. Install 15290 Drag Stake Mount Kit according to instructions
but do not attach drag stake.
3. Slide dethatcher shield over the unit’s tine shield from the rear
of the unit and secure using bolts (176) and nuts (400020) from
cultivator tine shield. SEE FIGURES 13 & 14
4. Secure the lower part of the dethatcher shield to the drag stake
mount using the lock pin (18039) from 15290 Drag Stake Kit.
SEE FIGURE 14
6. Wheel extension plate (4676), bolts (46142) and nuts (4650)
are not needed to install dethatcher kit to MC25 unit.
7. Slide the Left and Right Dethatcher Assemblies onto the tine
shaft making sure the Right Assembly is installed on the right
side and Left Assembly is installed on the left side as dened
from the user’s position. SEE FIGURE 13
8. Secure dethatcher assemblies using the hairpins (46134). The
hairpins go through the inner holes of the tine shaft.
NOTE: A drag stake should not be used when using the
dethatcher kit.
LEFT DETHATCHER
LOCK PIN
FIGURE 13
FIGURE 14
ASSEMBLY
DETHATCHER SHIELD
RIGHT DETHATCHER ASSEMBLY
SHIELD SECURED WITH
LOCK PIN AND TINE
SHIELD BOLTS
Operator's Manual
MC25 2-Cycle Cultivator
BOLT
HAIR
PIN
NUT
ITEM
23
PART
NO.
1 46134 HAIR PIN 2
2 4647 BOLT M6 X 1.0 X 18 HEX FLANGE 2
3 4650 NUT M6 NYLOCK 2
4 4676 EXTENSION PLATE DETHATCHER 1
5 4707 DETHATCHER ASSEMBLY LEFT 1
6 4708 DETHATCHER ASSEMBLY RIGHT 1
7 4710 DETHATCHER SHIELD 1
*IMPORTANT: The 15290 Drag Stake Mount Kit is required
to use the DK43 Dethatcher Kit.
DESCRIPTION QTY.
NO.
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Page 24
Operator's Manual
MC25 2-Cycle Cultivator
WARRANTY TERMS AND CONDITIONS
Ardisam, Inc. (Ardisam) warrants this cultivator under a ve-year limited warranty to be free from defects in the
material or workmanship or both for a period not exceeding sixty consecutive months from the date of original
purchase by the rst retail consumer or rst commercial end user. This warranty does not apply to the engine
mounted on the product. Refer to EPA warranty for engine warranty details. “Consumer use,” means personal
recreational use by a retail consumer. “Commercial use,” or “commercial application“ means all other uses,
including use for commercial, income producing or rental purposes. Once a product has experienced commercial
use, it shall thereafter be considered as a commercial use product for the purpose of this warranty. This warranty
applies to the original owner that provides a proof of purchase. This warranty is not transferable. The warranty
period begins on the date of purchase by the rst retail consumer or commercial end user, and continues for the
sixty month consecutive period thereafter. Any unit used in a commercial application is covered for a period of 90
days after purchase by the rst commercial end user. For the warranty to be valid, the product must be registered
online within 30 days of purchase, or the warranty card must be lled out and received by Ardisam within 30 days
of purchase. Ardisam shall not be obligated for transportation charges that result from repair or replacement
under the terms of this warranty. Transportation charges are the sole responsibility of the purchaser.
This warranty excludes tines due to normal wear, wear items such as wheels, grips and cables, routine
maintenance items such as lter elements, o-rings, seals, lubricants, and tune-ups, rotating parts, accessory parts
such as hiller furrowers, edger kits, and dethatcher kits, running the cultivator on straight gasoline or with a
fuel:oil ratio other than 50:1. Negligent use such as using the cultivator for a purpose other than for which it was
designed and manufactured, continued use of cultivator after sudden change in vibration, using the cultivator
in violation of local codes, ordinances and good trade practices voids this warranty. *These warranties apply only
to products which have not been subjected to negligent use, abuse, misuse, overload, improper installation,
alteration, accident, acts of God (or other events beyond Ardisam’s control) lightning, vandalism, unauthorized
parts, or if repairs have been performed at a non-authorized service facility. These warranties shall not cover
damage from normal wear and tear, normal maintenance parts and services, or improper installation, operation,
storage, or maintenance; nor operating the equipment above recommended maximums as stated in this manual
and the accompanying engine manual.
This limited warranty applies to defects in the material or workmanship of the product only. There is no other
express warranty. Implied warranties, including those of merchantability and tness for a particular purpose,
are limited to one year from purchase, or to the extent permitted by law. All other implied warranties are
excluded. Liability for incidental or consequential damages are excluded to the extent exclusion is permitted by
law. Ardisam does not assume, and does not authorize any other person to assume for Ardisam, any liability in
connection with the sale of Ardisam products. To be at “No Charge,” warranty work must be sent directly to
and performed by Ardisam or an Ardisam Authorized Warranty Service Facility. To obtain warranty service
and/or replacement instructions, contact the Ardisam Customer Service Department at 800-345-6007. If you
choose to ship your product to Ardisam for warranty repair, you must rst have prior approval from Ardisam
by calling the Ardisam Customer Service Department for a return material authorization number (RMA#).
Under these circumstances, all items must be shipped prepaid. Ardisam will, in its discretion, at no charge,
repair or replace any defective part to which this warranty applies. Ardisam retains the right to change models,
specications and price without notice. Ardisam shall not be obligated to ship any repair or replacement product
to any location outside of the United States of America or Canada. Some states and countries do not allow the
limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you. This warranty gives you specic legal rights, and you may
also have other rights which vary from state to state and country to country.
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24
Page 25
NOTES
Operator's Manual
MC25 2-Cycle Cultivator
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25
Page 26
NOTES
Operator's Manual
MC25 2-Cycle Cultivator
26
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Page 27
NOTES
Operator's Manual
MC25 2-Cycle Cultivator
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27
Page 28
All weights, specications and features are approximate and are subject to change without notice. Due to continuous product
improvements, product images may not be exact. Items used for props not included. Some assembly may be required.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Earthquake®, Division of Ardisam, Inc.
1160 8th Avenue, PO Box 666
Cumberland, WI 54829
800-345-6007 | Fax 715-822-2223
E-mail: info@getearthquake.com
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