GAS/OIL
RATIO
50:1
Operator's Manual
Original Operating Instructions
MC43
2-Cycle Cultivator
ENGLISH
FRANÇAIS
ESPAÑOL
Get parts online at
www.GetEarthquake.com
Includes models:
MC43 (Shown)
MC43E
P/N: 17954
ECN: 10177
REV2: 05/28/14
© 2014 Ardisam, Inc.
All Rights Reserved
Operator's Manual
MC43 2-Cycle Cultivator
INTRODUCTION
Congratulations on your investment in quality. Thank you for purchasing a cultivator from Earthquake®. We have worked to ensure
that the 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
Registration ........................................................................................................................................................................................................................................2
Warnings and Safety Precautions ...........................................................................................................................................................................................3-7
Features and Specications ..........................................................................................................................................................................................................8
Assembly .......................................................................................................................................................................................................................................9-10
Operation ................................................................................................................................................................................................................................... 10-13
Maintenance and Storage .................................................................................................................................................................................................... 14-16
Troubleshooting and Repair ................................................................................................................................................................................................16-17
Parts Breakdown ...................................................................................................................................................................................................................... 18-24
15073 Border-Edger Kit Installation.........................................................................................................................................................................................26
DK43 Dethatcher Kit Installation ..............................................................................................................................................................................................27
Warranty ..................................................................................................................................................................................................................................... 29-31
FEDERAL EMISSIONS INFORMATION
Earthquake warrants to the retail purchaser, that this small, o-road engine was designed, built and equipped to conform at the
time of initial sale to all applicable regulations of the U.S. Environmental Protection Agency (EPA).
REGISTRATION AND SERVICE
Record the engine 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.getearthquake.com, or by mailing it to: Ardisam, 1160
Eighth Avenue, Cumberland, WI 54829. If you do not have a computer, 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:
serial
number
location
This manual may contain information for several models. Read and keep this book 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.
2
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Operator's Manual
MC43 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:
WARNING
WARNING INDICATES A HAZARD WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS IN
JURY AND/OR PROPERTY DAMAGE.
ENGLISH
CAUTION
CAUTION INDICATES YOU CAN BE HURT OR YOUR
EQUIPMENT DAMAGED IF THE SAFETY INSTRUC
TIONS THAT FOLLOW THIS SIGNAL WORD ARE NOT
OBEYED.
IMPORTANT
INDICATES HELPFUL INFORMATION FOR PROPER AS
SEMBLY, OPERATION, OR MAINTENANCE OF YOUR
EQUIPMENT.
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 RE
PRODUCTIVE HARM.
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.
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.
DANGER
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Operator's Manual
MC43 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
influence 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 traffic 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 enginepowered 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.
PRODUCTSPECIFIC 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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ENGINE SAFETY PRECAUTIONS
Warning Carbon Monoxide Poisoning
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.
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 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).
• Always ll fuel tank outside in a well ventilated area. Never
fill 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
Operator's Manual
MC43 2-Cycle Cultivator
WARNING
ENGINES GIVE OFF CARBON MONOXIDE, AN ODOR
LESS, COLORLESS, POISONOUS GAS. CARBON MON
OXIDE MAY BE PRESENT EVEN IF YOU DO NOT SMELL
OR SEE ANY ENGINE EXHAUST. BREATHING CAR
BON 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.
CAUTION
HOT GASES ARE A NORMAL BYPRODUCT OF A FUNC
TIONING CATALYTIC CONVERTER. FOLLOW ALL SAFE
TY INSTRUCTIONS TO PREVENT BURNS AND FIRES.
DO NOT ALTER/MODIFY ENGINE:
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 DISCON
NECT SPARK PLUG WIRE FROM THE SPARK PLUG AND
KEEP IT AWAY FROM THE SPARK PLUG.
be done outdoors. The drained fuel should be stored in a
container specically designed for fuel storage or it should
be disposed of carefully.
• Never remove the fuel cap or add fuel with the engine
running. Stop engine and allow to cool before lling.
• Do not smoke.
• Never drain fuel from engine in an enclosed area.
• 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.
ENGLISH
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Operator's Manual
MC43 2-Cycle Cultivator
• Do not store engine with fuel in fuel tank indoors. Fuel and
fuel vapors are highly explosive.
• Never pour fuel from engine fuel tank.
• Never siphon fuel by mouth to drain fuel tank.
• Always have an adult fill the fuel tank and never allow
children to ll the engine.
• Never allow an adult or anyone under the inuence of drugs
or alcohol to ll engine.
• When storing gasoline or equipment with fuel in the tank,
store away from furnaces, stoves, water heaters or other
appliances that have a pilot light or other ignition source
because they can ignite gasoline vapors.
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.
• 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 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 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.
6
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Operator's Manual
MC43 2-Cycle Cultivator
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.
Should a decal become unreadable because of being worn, faded, or otherwise damaged during the use of your cultivator, please
use the part number information provided to order a replacement label. Customers can order by calling Earthquake customer service.
These decals are easily applied, and will act as a constant visual reminder to you, and others who may use the equipment, to follow
the safety instructions necessary for safe, eective operation of your cultivator.
ENGLISH
Part No. 17301
THROTTLE CONTROL DECAL
Part No. 17048
CULTIVATOR WARNING DECAL
TINE SHIELD DECAL
17301
2-CYCLE CULTIVATOR
CULTIVATEUR 2 TEMPS
GAS/OIL
ESSENCE/HUILE
50:1
2-CYCLE ENGINE
MOTEUR 2 TEMPS
17300
Part No. 17300
Gas Tank Cover Decal
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FEATURES
throttle control lever
Operator's Manual
MC43 2-Cycle Cultivator
adjustable height transport wheels
replaceable tines
SPECIFICATIONS
ENGINE DISPLACEMENT 43cc
FUEL TANK CAPACITY 36 ounces
OIL/GAS RATIO 50:1 - 2.6 ounces per gallon
OIL TYPE VIPER 2 CYCLE ENGINE OIL
(p/n 300400)
FUEL TYPE Minimum 87 octane gasoline
with NO ethanol content
NOTE: If using an ethanol
blended fuel, a fuel stabilizer,
mixed to manufacturer
specications, is recommended
SPARK PLUG BM6A
SPARK PLUG GAP .028
TRANSMISSION GEAR DRIVE
GEAR RATIO 32:1
TILLING WIDTH 6” minimum - 10” maximum
TILLING DEPTH 8” maximum
TINE SPEED 250 rpm
WHEEL SIZE 1.375 x 7.0 inch diameter
WEIGHT OF UNIT MC43 = 33 lb / MC43E = 46 lb
UNIT SIZE L x W x H inches) 23” x 20” x 20”
8
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Operator's Manual
MC43 2-Cycle Cultivator
ASSEMBLY
UNPACK CULTIVATOR
1. Carefully lift the cultivator out of the box, remove any packing
material and cut any ties holding the handlebar pieces to the
cultivator assembly.
2. Find parts packet. Parts packet contains:
4 - T-Handle Nuts (4640)
4 - Curved Washers (4641)
4 - Handle Clamp Bolts (4642)
ASSEMBLY
1. Stand the cultivator assembly upright with tines and wheels
on a level surface. Wheels should be set in the lowest position.
DO NOT place the cultivator on a high surface where it can
fall and cause property damage or personal injury.
2. Using two T-handle nuts, two handle clamp bolts, and two
curved washers, attach the middle handlebar to the lower
handlebar that is already connected to the cultivator assembly
(SEE FIGURE 1. The middle handlebar can be installed in one
of two positions, one high and one low. DO NOT overtighten
the T-handle nuts.
NOTE: FIGURE 1 applies to both the MC43 and the MC43E,
the MC43 is shown.
3. Attach the upper right and left handlebars to the middle
handlebar using the two remaining T-handle nuts, handle
clamp bolts, and curved washers (SEE FIGURE 1. DO NOT
overtighten the T-handle nuts.
4. The drag stake is shipped with point facing upwards. Before
using, remove detent pin and turn the drag stake around
so the point is directed in the downward position facing towards the tines. Re-insert detent pin. SEE FIGURE 2
upper right
handlebar
handle clamp
FIGURE 1
bolt
T-handle
curved
washer
nut
upper left
handlebar
ENGLISH
middle
handlebar
lower
handlebar
For the Electric Start Cultivator Model MC43E, remove the
battery box cover and plug the white plastic connector from the
battery into the mating white plastic connector in the battery
box. SEE FIGURE 3. Make sure the ignition key is removed from
the ignition before connecting the wiring for the battery.
detent pin
drag stake
FIGURE 2
FIGURE 3
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FOR MODEL MC43E ELECTRIC START
CHARGING THE BATTERY
To charge the battery, check that the battery wiring is properly
connected and plug the battery charger (4681) into the side of
the battery box (4656) with matching three-prong plug. Plug
the other end of the battery charger into a standard 120V outlet
receptacle. Battery is fully charged when the LED light turns
GREEN on the external charger. The electric start cultivator
(MC43E) will maintain a charge in the battery when the engine
is running.
Batteries may take as long as eight (8) hours to fully charge
depending on the original charge level of the battery.
NOTE: For long term storage protection, be sure that
the battery is fully charged and the white plastic battery
connector is disconnected. Place the battery box cover onto
the battery box and store in a dry place out of direct sunlight.
NOTE: Rechargeable batteries have a limited number of
charge cycles and may eventually need to be replaced.
Battery life and number of charge cycles vary by use.
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.
Operator's Manual
MC43 2-Cycle Cultivator
WARNING
AVOID ELECTRICAL SHOCK! DO NOT USE BATTERY
CHARGER AROUND WATER OR IN WET CONDITIONS.
IMPORTANT
DO NOT SPRAY WATER ON OR NEAR THE ELECTRON
ICS OF THE CULTIVATOR AS THIS MAY RESULT IN DAM
AGE TO THE ELECTRICAL COMPONENTS.
DO NOT TRY TO START ENGINE WHILE THE BATTERY
CHARGER IS CONNECTED. THIS COULD DAMAGE THE
ENGINE AND BATTERY.
CAUTION
NEVER STORE ENGINE WITH FUEL IN THE TANK INDOORS.
FUEL AND FUEL VAPORS ARE HIGHLY FLAMMABLE.
NEVER MIX FUEL AND OIL DIRECTLY IN ENGINE FUEL
TANK. USE ONLY NONMETAL, PORTABLE FUEL CONTAIN
ERS APPROVED BY THE UNDERWRITER’S LABORATORY
U.L. OR THE AMERICAN SOCIETY FOR TESTING & MATE
RIALS ASTM.
AN ADULT MUST ALWAYS HANDLE AND FILL THE EN
GINE 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.
3. Never run engine indoors. Exhaust fumes are deadly.
PREPARING ENGINE FOR STARTING
GAS AND OIL
Quality
To operate the engine, we recommend using “VIPER” brand
two-cycle oil (PN 300400) 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.
10
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IMPORTANT
THIS ENGINE USES A GAS/OIL MIXTURE. DO NOT RUN ON
STRAIGHT GAS ONLY, ENGINE DAMAGE WILL RESULT.
DO NOT START ENGINE WITH BATTERY CHARGER CON
NECTED TO BATTERY. THIS COULD CAUSE DAMAGE TO
THE CULTIVATOR.
Operator's Manual
MC43 2-Cycle Cultivator
Mixture
Run engine with a 50:1 ratio.
GAS OIL RATIO
1 gallon 2.6 ounces 50:1
2 gallons 5.1 ounces 50:1
5 gallons 13 ounces 50:1
MIXING FUEL AND FILLING FUEL TANK
Mixing Fuel
1. Fuel must be mixed in a container outside in a well ventilated
area.
2. Fill certied fuel container 1/4 full of recommended fuel.
3. Add recommended amount of 2 cycle oil.
4. Screw container 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.
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 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.
TINE REMOVAL AND INSTALLATION
To Remove Tines (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. First 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. SEE FIGURE 4
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
inner tine
hub collars
hairpin
D
C
NOTE: 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.
tine shaft
inner hole
B
outer tine
A
FIGURE 4
ENGLISH
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STARTING AND STOPPING 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.
NOTE: Choke must be in the RUN position when pushing or
using the primer bulb.
2. Prime unit until primer hose is lled with gas.
NOTE: When using the primer bulb, allow the bulb to re-
turn completely to its original position between pushes.
3. Move choke lever to CHOKE position.
NOTE: CHOKE position is dened by moving the choke le-
ver as far to the CHOKE position as possible.
4. Push ON/OFF switch to the ON position.
5. 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 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.
6. 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 be-
tween CHOKE and RUN.
7. 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.
8. To stop engine, push ON/OFF switch to OFF position.
Warm Engine Start:
1. Begin with Step 3 of Cold Engine Starting.
Hot Engine Start:
1. Begin with Step 4 of Cold Engine Starting.
2. If engine does not re, refer to Step 1 of Warm Engine Starting.
Operator's Manual
MC43 2-Cycle Cultivator
WARNING
MAKE SURE THE UNIT IS IN A STABLE POSITION BE
FORE 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.
CAUTION
IF ENGINE FAILS TO START AFTER TRYING STARTING
PROCEDURES, PLEASE CONTACT OUR CUSTOMER
SERVICE DEPARTMENT AT 8003456007.
STARTER ROPE CAN CAUSE AN UNANTICIPATED JERK
TOWARDS ENGINE. PLEASE FOLLOW INSTRUCTIONS
TO AVOID INJURY.
NEVER LEAVE ENGINE RUNNING WHILE UNATTEND
ED. 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.
FOR MODEL MC43E ELECTRIC START
1. Check that the battery is connected using the white plastic
connectors inside the battery box. Insert ignition key into
ignition and turn key to the START position until engine starts
running, then release key to the ON position. DO NOT hold
the ignition key in the START position longer than 3 seconds.
2. Run engine for 30 to 45 seconds at HALF CHOKE position
until engine warms up.
3. Move choke lever to RUN position and squeeze throttle to
desired speed.
4. To stop, turn switch to OFF position on manual start models.
On electric start, turn ignition key to the OFF position.
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.
12
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ADJUSTING WHEELS AND DRAG STAKE
The wheels on the cultivator can be adjusted to one of three
positions. The LOW wheel position is used for transporting the
cultivator across a smooth level surface while the engine is not
running. The HIGH and HIGHEST wheel positions are used when
cultivating in soil and help stabilize the unit when cultivating at
dierent depths. SEE FIGURE 5
To adjust wheels up or down (SEE FIGURES 6 AND 7:
HIGHEST position
HIGH position
LOW position
Operator's Manual
MC43 2-Cycle Cultivator
ENGLISH
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.
The drag stake is used to help regulate cultivating depth and
control the 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.
To adjust the drag stake (SEE FIGURE 7:
1. Pull the pin out of the drag stake mount hole.
2. Position the drag stake so the pointed tip is directed
downward.
3. Insert the pin into the hole that achieves desired depth.
FIGURE 5
locking metal sleeve
(LOCKED position)
FIGURE 6
vertical guide
expanded spring
compressed spring
locking metal sleeve
(UNLOCKED position)
detent pin
drag stake
FIGURE 7
* For helpful hints and tips for using your cultivator,
check out one of the informative cultivating videos
on www.getearthquake.com.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 13
MAINTENANCE AND STORAGE
STEPS FOR WORKING ON EQUIPMENT
1. Turn o engine switch.
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 specically designed for the cultivator.
6. Reconnect the spark plug wire.
CULTIVATOR MAINTENANCE
1. The transmission case has grease installed at the factory. It
is recommended that once a year the gear case be split by a
qualied service professional and the grease level checked.
Add a molylithium type grease only if level of grease is below
top of the gears. DO NOT OVERFILL.
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.
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 troublefree 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.
Operator's Manual
MC43 2-Cycle Cultivator
CAUTION
PRACTICE SAFETY AT ALL TIMES. ENGINE MUST BE
TURNED OFF AND ALLOWED TO COOL, AND SPARK
PLUG WIRE MUST BE DISCONNECTED BEFORE AT
TEMPTING 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 RE
PAIR ON ENGINE AND CULTIVATOR.
ENGINE MUST BE SHUTOFF, COOL, AND SPARK PLUG
WIRE REMOVED BEFORE ANY REPAIR OR MAINTE
NANCE CAN BE DONE.
MAINTENANCE SCHEDULE
Every 8
hours
MAINTENANCE ITEM
Clean Engine and
Check Bolts & Nut
Air Filter Check X
(See Air Filter section)
Spark Plug
(Gap .028”)
(See Spark Plug section)
* Service more frequently under dusty conditions
Clean * X
Replace X X
Check/
Adjust
Replace X
(daily)
X
Every 20
hours or
seasonally
X
Each
Year
14
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SPARK PLUG
The recommended spark plug is a NGK BM6A which cross
references to a Champion CJ8.
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 .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.
Operator's Manual
MC43 2-Cycle Cultivator
CAUTION
TO AVOID INJURY OR DEATH, NEVER SIPHON FUEL BY
MOUTH.
NEVER STORE CULTIVATOR WITH FUEL IN THE FUEL
TANK INSIDE AN ENCLOSED AREA OR BUILDING.
IMPORTANT
NEVER TWIST AIR FILTERS WHEN CLEANING. ALWAYS PRESS.
lter
reinforcement
plate
latch tab
foam lter
element
air lter
cover
ENGLISH
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.
Steps for Replacing and Cleaning Air Filter
(Block Style Foam Filter)
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 8
3. Once the latch tabs are released, remove the air lter cover
by rotating the cover away from the engine.
latch tab
receiver
FIGURE 8
4. Remove the foam lter element SEE FIGURE 8. Replace with
a new oiled foam lter or clean the original foam lter with
warm water and mild soap. Remember to 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.
5. 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.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 15
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.
LONGTERM 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, such as STABIL®, 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 an upright position.
3. Remove all debris from cultivator tines and engine.
Operator's Manual
MC43 2-Cycle Cultivator
CAUTION
TO AVOID INJURY OR DEATH, NEVER SIPHON FUEL BY
MOUTH.
NEVER STORE CULTIVATOR WITH FUEL IN THE FUEL
TANK INSIDE AN ENCLOSED AREA OR BUILDING.
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 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.
16
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.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Operator's Manual
MC43 2-Cycle Cultivator
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE REMEDY/ACTION
Engine will not start 1. Power 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
5. Fuel line hose not positioned in bottom of gas tank
Engine runs rough, oods during
operation
Engine is hard to start 1. Stale fuel 1. Drain old fuel and replace with fresh. Use gas stabilizer at
Engine misses or lacks power 1. Clogged gas tank 1. Remove and clean gas tank
Engine runs, then quits 1. Gas cap not venting 1. Clean or replace gas cap, check vent
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
MODEL MC43E ONLY
Charger won’t charge 1. Battery worn out 1. Replace with new battery
Key won’t start machine 2. Battery not charged 1. Charge battery
1. Dirty air lter 1. Clean or replace air lter
2. Choke partially engaged 2. Turn o choke
3. Carburetor out of adjustment 3. Call customer service
2. Spark plug wire loose 2. Make sure spark wire is securely attached to spark plug
3. Dirty carburetor 3. Clean carburetor, use gas stabilizer, new gas can
4. Throttle control not held open 4. Prime unit 3 more times, then pull recoil handle
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
2. Plugged fuel lter 2. Clean or replace fuel lter
3. Carburetor out of adjustment or bad 3. Call customer service
2. Broken clutch spring 2. Replace spring
2. Connectors not plugged in 2. Open battery box and connect battery connectors
4. Clean, replace or gap spark plug
5. Push fuel line down into fuel in gas tank
end of season
4. Clean, replace or gap spark plug
ENGLISH
Contact Earthquake customer service at 800-345-6007 if additional assistance is needed.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 17
ENGINE PARTS EXPLOSION
44
Operator's Manual
MC43 2-Cycle Cultivator
40
27
11
43
56
60 (2)
52
42
34
29
28
35
32
33
26
25
61
21
24
50
30
31
22
23
49
19
13
14
20
47
47
3
18
12
39
38
10
9
37
41
54
59(2)
6
5
4
7
8
58(2)
57
48
46
55
36
53
17
16
18
45
51
15
1
2
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47
Operator's Manual
MC43 2-Cycle Cultivator
ENGINE PARTS LIST
KEY
NO. PART NO. DESCRIPTION Q TY.
1 300484 FLYWHEEL, MAGNETO 1
2 300337 NUT, FLANGE M8 1
3 300462 WASHER, ROTOR 2
4 300413 CLUTCH ROTOR ASSEMBLY W/SPRING 1
5 300449 WASHER, SPRING 2
6 300450 BOLT, SHOULDER 2
7 300467 PIN, LOCATING 2
8 300487 MOUNT RING & SHROUD 1
9 300491 RECOIL CLUTCH 1
10 300429 PLATE, RECOIL 1
11 3004121 HANDLE, RECOIL STANDARD 1
12 300430 RECOIL ASSEMBLY WITH STANDARD
HANDLE
13 300472 IGNITION COIL, MC43 1
300191 IGNITION COIL, MC43E 1
14 300482 SHROUD, ENGINE 1
15 300493 BOLT, STUD M6 X 62MM 2
16 300475 GASKET, MUFFLER 1
17 4813 MUFFLER 1
18 4812 COVER, MUFFLER 1
19 BM6A SPARK PLUG 1
20 300483 COVER, ENGINE SHROUD 1
21 300476 GASKET, INTAKE 1
22 300478 WINDPIPE, INTAKE 43CC/51CC 1
23 300479 GASKET, CARBURETOR 1
24 300486 CARBURETOR 1
25 300481 ORING, CARBURETOR 1
26 3004109 PRIMER BULB 1
27 3004158 COVER, AIR FILTER 1
28 3004150* AIR FILTER ASSEMBLY 1
29 3004156 FOAM, AIR FILTER 1
30 3004157 PLATE, REINFORCEMENT 1
KEY
NO. PART NO. DESCRIPTION QT Y.
31* 3004150 AIR FILTER ASSEMBLY 1
32* 3004150 AIR FILTER ASSEMBLY 2
33* 3004150 AIR FILTER ASSEMBLY 1
ENGLISH
34* 3004150 AIR FILTER ASSEMBLY 1
35* 3004150 AIR FILTER ASSEMBLY 1
36 56105 BRACKET, GAS TANK 1
(a)
3004118 GAS TANK KIT 1
37
38 300401 GAS CAP, MANUAL VENTING 1
39 300332 SHROUD, GAS TANK 1
40 1021 SWITCH, ROCKER 1
(b)
3004105 KIT FUEL LINE TWO HOLE GROMMET 1
41
(b)
3004105 KIT FUEL LINE TWO HOLE GROMMET 1
42
(b)
3004105 KIT FUEL LINE TWO HOLE GROMMET 1
43
1
44 300335 BOLT W/WASHER PHILLIPS HH 4
45 300492 NUT, FLANGE M6 2
46 300471 BOLT W/WASHER M5 X 12MM 4
47 300439 BOLT W/WASHER PH M5 X 18MM 7
48 300336 BOLT HH M6 X 10MM 2
49 300438 BOLT W/WASHER M5 X 25MM 2
50 300456 BOLT M5 X 50MM 2
51 300338 KEY, FLYWHEEL 1
52 3004103 FILTER, FUEL 1
53 300351 BOLT HH M6 X 8MM 2
61 300326 GUARD
- 3004114 KIT, CARBURETOR 1
-- KITTU101 KIT, TUNE UP 1
MC43E ELECTRIC START MODEL ONLY
54 300525 STUD BOLT M6 X 41MM 1
55 300339 KEY, ELECTRIC STARTER 1
56 300527 STARTER WIRE 1
57 300529 STARTER MOTOR KIT (includes starter,
1
stud bolt, clutch drum & ground wire)
58 300445 WASHER M5 2
59 300438 BOLT W/WASHER M5 X 25MM 2
60 300439 BOLT W/WASHER PH M5 X 18MM 2
*Air lter assembly includes: air lter base (28), choke lever bolt (31),
two choke lever washers (32), nylock choke lever nut (33), choke lever
(34) and choke paddle (35)
(a) Gas tank kit includes: gas tank (37), gas cap (38), two-hole grommet (41), fuel line and fuel lter (43, 52).
(b) These parts are available as part of fuel line repair kit. Fuel line
repair kits includes: two-hole grommet (41), fuel line hose (42), primer
line hose (43) and fuel lter (52)
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 19
HOOD & TINES PARTS EXPLOSION
Operator's Manual
MC43 2-Cycle Cultivator
10
2
1
3
5
4
6
5
7
19
18
8
9
17
1
11
12
13
20
29
21
22
26
27
14
16
23
28
12
15
11
KEY PART # DESCRIPTION QT Y.
1 4652 HAIR PIN, 5/83/4 COTTER 2
2 4601 TINE “A” RIGHT OUTSIDE 1
3 4603 TINE “B” RIGHT INSIDE 1
4 4655 NUT M8 X 1.25 HEX HD 2
5 4641 WASHER M8 CURVED ZINC 4
6 46138 TRANSMISSION ASSEMBLY 1
7 46141 BOLT M81.25 X 155MM ZN PT 2
8 4602 TINE “C” LEFT INSIDE 1
9 4604 TINE “D” LEFT OUTSIDE 1
10 4687 BOLT M10 X 1.5 X 225MM HEX HD 1
11 2431 WASHER, 10MM NARROW FLAT 2
12 4634 WHEEL 2
13 4678 GUIDE, WHEEL TUBE 1
14 4695 HANDLEBAR LOWER CULTIVATOR 1
15 4629 NUT M10 X 1.5 CENTER LOCK HEX HD 1
16 4674 WHEEL TUBE 1
24
25
KEY PART # DESCRIPTION QT Y.
17 18039 LOCK 8MM X 40MM 1
18 4650 NUT M6 X 1.0 FLANGED HEX HD 2
19 W1200117 WASHER M6 X 13 X 1.75 FLAT ZN 2
20 4673 WHEEL HOLDER 1
21 4600 DRAG STAKE 1
22 4691 BOLT, M4 X 0.7 X 10MM PHILLIPS PAN HD 2
23 46146 TINE SHIELD 2
24 4694 NUT M4 X 0.7 FLANGED HEX HD 2
25 4625 BOLT, M6 X 1.0 X 42MM FLANG HEX HD 4
26 4684 TUBE, WHEEL LOCK 1
27 4685 SPRING, WHEEL LOCK 1
28 13230 WASHER 21MM X 16MM X 1MM 1
29 46142 BOLT M6 X 1.0 X 15MM FLANG HEX HD 2
E43CCMCV ENGINE 43CC CAT CONVERT 1
E43MCEVE ENGINE 43CC CAT CONVERT ELEC START 1
20
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
TRANSMISSION PARTS EXPLOSION
Operator's Manual
MC43 2-Cycle Cultivator
19
9
16
1
17
8
22
ENGLISH
6
19
4
10
14
11
15
7
13
5
21
25
4
2
3
20
23
18
20
2
3
KEY PART # DESCRIPTION QT Y.
1 300414 CLUTCH DRUM 1
2 4606 WASHER, FIBER 2
3 46144 DUST CAP 2
4 4610 SHIM, TINE SHAFT 4
5 4613 WORM SPUD 1
6 46135 TRANSMISSION CASTING, RIGHT 1
7 46136 TRANSMISSION CASTING, LEFT 1
8 46137 DRIVE SHAFT 1
9 46138 TRANSMISSION ASSEMBLY 1
10 4614 BUSHING, DRIVE SHAFT 2
11 4615 THRUST BEARING ASSEMBLY 1
12 4616 SPACER, BUSHING 1
13 4617 REDUCER, THRUST BEARING 1
12
10
24
KEY PART # DESCRIPTION Q TY.
14 4618 WASHER, THRUST 2
15 4619 THRUST BEARING CAGE WASHER 1
16 4620 NUT, JAM M8 1
17 4623 BALL BEARING, 9MM 1
18 4633 ARM WHEEL/DRAG STAKE MOUNT 1
19 4645 BUSHING, TINE SHAFT 2
20 4646 SEAL, TINE SHAFT 2
21 4647 BOLT, FLG HEX HD M6 X 1.0 X 18MM 4
22 4648 BOLT, FLG HEX HD M6 X 1.0 X 22MM 2
23 4649 BOLT, FLG HEX HD M6 X 1.0 X 24MM 2
24 4650 NUT, FLANGED HEX HD M6 2
25 4651 TINE GEAR & SHAFT ASSEMBLY 1
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 21
25
18
6
24
20
21
22
7
8
9
12
1
1
3
4
17
15
16
11
13
5
8
19
26
2
27
14
23
7
8
9
10
8
PARTS BREAKDOWN
MC43E HANDLEBAR PARTS EXPLOSION
Operator's Manual
MC43 2-Cycle Cultivator
22
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
MC43E HANDLEBAR PARTS LIST
Operator's Manual
MC43 2-Cycle Cultivator
KEY PART # DESCRIPTION Q TY.
1 300471 BOLT, M5 X 12MM 3
2 300523 GROUND WIRE 1
3 46139 KEY ONLY 1
4 46140 KEY SWITCH 1
5 46141 BOLT, HEX HD M8 X 1.25 X 160MM 2
6 4639 GRIP, HANDLEBAR 2
7 4640 NUT, THANDLE 4
8 4641 WASHER 8
9 4642 BOLT, HANDLE CLAMP 4
10 4655 NUT, HEX HD M8 X 1.25 2
11 4656 BATTERY BOX MC43E 1
12 4657 COVER, BATTERY BOX 1
13 4659 VOLTAGE RECTIFIER 1
14 4660 SOLENOID 1
15 4661 CHARGER PIGTAIL 1
16 4662 NUT, CHARGER PIGTAIL 1
17 4663 CAP, CHARGER PIGTAIL 1
KEY PART # DESCRIPTION QT Y.
18 14645 THROTTLE CABLE 1
19 4669 BOLT, M6 X 1MM X 12MM PAN HD 1
20 4689 HANDLEBAR, UPPER RIGHT 1
21 4690 HANDLEBAR, UPPER LEFT 1
22 4693 HANDLEBAR, MIDDLE 1
23 4695 HANDLEBAR, LOWER 1
24 4814 BOLT, PHILLIPS TRUSS HD ZN 1024 X
11/4
25 4823 TRIGGER ASSEMBLY, SHORT THROW W/O
CABLE
26 53106 NUT, LOCK BI-WAY 1/4-20 2
27 6041612 BOLT, PTH ZN 1/4-20 X 1-1/2 2
46122 BATTERY 12V 7A (not shown) 1
4653 FUSE HOLDER (not shown) 1
4658 FUSE 10 AMP (not shown) 1
4675 BATTERY CONNECTOR SET, WHITE (not
shown)
4681 BATTERY CHARGER (not shown) 1
1
1
1
ENGLISH
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MC43 HANDLEBAR PARTS EXPLOSION
Operator's Manual
MC43 2-Cycle Cultivator
1
3
2
4
8
10
9
5
6
7
8
9
10
KEY PART # DESCRIPTION Q T Y.
1 4639 GRIP, HANDLEBAR 2
2 4690 HANDLEBAR, UPPER LEFT 1
3 4689 HANDLEBAR, UPPER RIGHT 1
4 4814 BOLT, PHILLIPS TRUSS HD ZN 1024 X 11/4 1
5 4823 TRIGGER ASSEMBLY, SHORT THROW W/O CABLE 1
6 14645 THROTTLE CABLE 1
7 4693 HANDLEBAR, MIDDLE 1
8 4640 NUT, THANDLE 4
9 4641 WASHER 4
10 4642 BOLT, HANDLE CLAMP 4
24
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NOTES
Operator's Manual
MC43 2-Cycle Cultivator
ENGLISH
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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 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 9
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 9
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 9
9. Before using the Border-Edger Kit, remove the drag stake from
the unit.
10. Set the cultivator wheels to the HIGHEST (top) position.
FIGURE 9
CAUTION
BE AWARE THAT THE CULTIVATOR COULD UNEXPECT
EDLY BOUNCE UPWARD, OR JUMP FORWARD IF THE
TINES STRIKE CONCRETE, PAVEMENT, OR OTHER
HARD SURFACES OR HARD OBSTACLES BURIED UN
DER GROUND.
border-edger
wheel
tine shaft
hairpin
Operator's Manual
MC43 2-Cycle Cultivator
border-edger
tine
hub collar
PARTS BREAKDOWN
KEY # PART # DESCRIPTION Q T Y.
1 15009 BORDEREDGER TINE 1
2 46131 BORDEREDGER WHEEL 1
3 46134 HAIRPIN 1
26
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KIT ASSEMBLED
Operator's Manual
MC43 2-Cycle Cultivator
DK43 DETHATCHER KIT INSTALLATION OPTIONAL ACCESSORY
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.
1. Flip the ON/OFF switch to the OFF position. Remove the cultivating tines and the drag stake (SEE PAGE 12).
2. Unscrew mount bolts/nuts that connect the wheel bracket to the drag stake mount and set wheel bracket aside. SEE FIGURE 11
3. Slide dethatcher shield over the unit’s tine shield from the rear of the unit and secure using bolts (176) and nuts (400020).
SEE FIGURE 10
3. Secure the lower part of the dethatcher shield to the drag stake mount using the detent pin (46145).
4. Install wheel extension plate (4676) using additional bolts (46142) and nuts (4650). Make sure wheel extension is facing the right
direction. (The side, with the two holes ush to the edge, connects to the drag stake mount) SEE FIGURE 11
a. With the mount bolts/nuts attach the wheel extension to the drag stake mount.
b. Then with the bracket bolts/nuts (included with the Dethatcher Kit) attach the wheel bracket to the wheel extension.
5. 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 12
6. Secure dethatcher assemblies using the hairpins (4652). The hairpins go through the inner holes of the tine shaft.
NOTE: The drag stake should not be used when using the dethatcher kit.
ENGLISH
slide shield
forward
secure with
detent pin
FIGURE 10
right side dethatcher
assembly
hairpin
bolt
(176)
nut
(400020)
bolt
(176)
bracket bolts/nuts
wheel
bracket
FIGURE 11
(4647/4650)
wheel
extension
drag stake
mount
detent
pin
mount bolts/nuts
(46142/4650)
hairpin
left side dethatcher
assembly
nut
(400020)
FIGURE 12
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tine shaft
NOTES
Operator's Manual
MC43 2-Cycle Cultivator
28
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MC43 2-Cycle Cultivator
WARRANTY TERMS AND CONDITIONS
Operator's Manual
PRODUCT WARRANTY: 1YEAR LIMITED WARRANTY
Ardisam, Inc. (Ardisam) warrants the product(s) under a one-year limited warranty to be free from defects in the material or
workmanship or both for a period not exceeding twelve consecutive months from the date of original purchase by the rst retail
consumer or rst commercial end user. “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. The 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 twelve 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, or the
warranty card must be lled out and received by Ardisam, within 30 days of purchase. Ardisam shall not be obligated to ship
any repair or replacement product to any location outside of the United States of America or Canada.*
ENGINE WARRANTY: 2-YEAR LIMITED EMISSIONS CONTROL WARRANTY
(SEE EXPLANATION OF EMISSIONS CONTROL WARRANTY STATEMENT FOR DETAILS)
Ardisam warrants the Viper® engine(s) under a two-year limited emissions control warranty to be free from defects in the
materials or workmanship or both for the service life of the product not to exceed twenty-four consecutive months from the
date of purchase for consumer applications. As a Viper® small engine owner, you are responsible to perform periodic maintenance as specied in the product’s operator’s manual and/or engine manual. The warranty period begins on the date of
purchase by the rst retail consumer or commercial end user, and continues for the period of time stated above.*
For replacement parts, phone 800-345-6007.
ENGLISH
*This warranty policy applies only to products which have not been subjected to negligent use, misuse, uses other than
those indicated in the product’s operator’s manual, alteration, accident, use of unauthorized parts, failure to perform periodic
maintenance as specied in product’s operator’s manual, normal wear and tear, use of unauthorized parts or repairs performed
at unauthorized service centers. There is no other expressed 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. For Viper® engine warranty
repairs, Ardisam will cover the cost of shipping only for purchasers located more than 100 miles from an Ardisam Authorized
Warranty Service Facility if it is determined that warranted repair is indeed necessary. Ardisam will at no charge, repair or
replace, at the discretion of Ardisam, any defective part which satises all conditions stated above. 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.
17645-REV1
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FEDERAL EMISSIONS CONTROL WARRANTY STATEMENT
Operator's Manual
MC43 2-Cycle Cultivator
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The United States Environmental Protection Agency (EPA), together
with Ardisam, Inc. (Ardisam), are pleased to explain the Emission
Control System Warranty on your small o-road engine (SORE). New
small o-road engines must be designed, built and equipped to meet
stringent anti-smog standards the federal government. Ardisam will
warrant the emission control system on your engine for the periods of
time listed below provided there has been no abuse, neglect, modication or improper maintenance of your engine.
The emission control system includes all components whose failure
would increase the emissions of any regulated pollutant. These
components are listed in the emission-related parts list located in a
subsequent section of this emissions warranty statement. Ardisam
will repair your engine at no cost to you for diagnosis, replacement
parts and labor, should a warrantable condition occur.
MANUFACTURER’S WARRANTY COVERAGE:
The emission control system is warranted for two years. If, during such
warranty period, any emission-related part on your engine is found to
be defective in materials or workmanship, repairs or replacement will
be performed by an Ardisam Authorized Warranty Service Facility.
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES:
As the SORE purchaser/owner, you are responsible for the completion of all required maintenance as listed in your factory supplied
Manual(s). For warranty purposes, Ardisam recommends that you
retain all receipts covering maintenance on your SORE. However,
Ardisam cannot deny warranty solely because of the lack of receipts
or for your failure to ensure the completion of all scheduled maintenance.
As the SORE purchaser/owner, you should, however, be aware that
Ardisam may deny any and/or all warranty coverage or responsibility
if your SORE or a part/component thereof, has failed due to abuse,
neglect, improper maintenance or modications, or the use of counterfeit and/or “grey market” parts not made, supplied or approved by
Ardisam.
You are responsible for presenting your SORE to an Ardisam Authorized Warranty Service Facility as soon as a problem occurs. The warranty repairs should be completed in a reasonable amount of time,
not to exceed 30 days.
Warranty service can be arranged by contacting either your selling
dealer or an Ardisam Authorized Warranty Service Facility. To locate
the Ardisam Authorized Warranty Service Facility nearest you, call our
free number:
800-345-6007
IMPORTANT NOTE: This warranty statement explains your rights and
obligations under the Emission Control System Warranty (ECS Warranty), which is provided to you by Ardisam pursuant to federal law.
See also the Ardisam “Product Warranty” (non-emission warranties),
which is enclosed herewith on a separate sheet or located in additional materials accompanying this product. The ECS Warranty applies
only to the emission control system of your new engine. If there is
any conict in terms between the ECS Warranty and the Ardisam
Warranty, the ECS Warranty shall apply except in circumstances where
the Ardisam Warranty may provide a longer warranty period. Both the
ECS Warranty and the Ardisam Warranty describe important rights
and obligations with respect to your new engine.
Warranty service can be performed only by an Ardisam Authorized
Warranty Service Facility. When requesting warranty service, evidence must be presented showing the date of the sale to the original
purchaser/owner. Ardisam will not be responsible for any and/or all
damages or losses incurred while the engine is being transported/
shipped for inspection or warranty repairs.
IF YOU HAVE ANY QUESTIONS REGARDING YOUR WARRANTY RIGHTS
AND RESPONSIBILITIES, YOU SHOULD CONTACT ARDISAM AT THE
FOLLOWING ADDRESS:
Ardisam, Inc.
1160 Eighth Avenue; P.O. Box 666
Cumberland, Wisconsin 54829
800-345-6007 · Fax (715) 822-4180
E-mail: info@ardisam.com
II. EMISSION CONTROL SYSTEM WARRANTY
Emission Control System Warranty (ECS Warranty) for equipment using small o-road engines:
(a) Applicability: This warranty shall apply to equipment that uses
small o-road engines. The ECS Warranty Period shall begin on the
date the new engine or equipment is purchased by/delivered to its
original, end-use purchaser/owner and shall continue for 24 consecutive months thereafter.
(b) General Emissions Warranty Coverage: Ardisam warrants to the
original, end-use purchaser/owner of the new engine or equipment
and to each subsequent purchaser/owner that each of its engines is...
(1) Designed, built and equipped so as to conform with all applicable regulations adopted by the EPA pursuant to their respective
authority, and
(2) Free from defects in materials and workmanship which, at
any time during the ECS Warranty Period, may cause a warranted
emissions-related part to fail to be identical in all material respects
to the part as described in the engine manufacturer’s application
for certication.
The ECS Warranty only pertains to emissions-related parts on your
engine, as follows:
(1) Any warranted, emissions-related parts that are not scheduled
for replacement as required maintenance in the Maintenance
Schedule (located in the section of the Manual(s) pertaining to
maintenance) shall be warranted for the ECS Warranty Period. If any
such part fails during the ECS Warranty Period, it shall be repaired
or replaced by Ardisam according to Subsection (4) below. Any
such part repaired or replaced under the ECS Warranty shall be
warranted for the remainder of the ECS Warranty Period.
(2) Any warranted, emissions-related part that is scheduled only
for regular inspection as specied in the Maintenance Schedule
(located in the section of the Manual(s) pertaining to maintenance)
30
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Operator's Manual
MC43 2-Cycle Cultivator
shall be warranted for the ECS Warranty Period. A statement in such
written instructions to the eect of “repair or replace as necessary”
shall not reduce the ECS Warranty Period. Any such part repaired or
replaced under the ECS Warranty shall be warranted for the remainder of the ECS Warranty Period.
(3) Any warranted, emissions-related part that is scheduled for replacement as required maintenance in the Maintenance Schedule
(located in the section of the Manual(s) pertaining to maintenance)
shall be warranted for the period of time prior to the rst scheduled
replacement point for that part. If the part fails prior to the rst
scheduled replacement, the part shall be repaired or replaced by
Ardisam according to Subsection (4) below. Any such emissionsrelated part repaired or replaced under the ECS Warranty shall be
warranted for the remainder of the ECS Warranty Period prior to the
rst scheduled replacement point for such emissions-related part.
(4) Repair or replacement of any warranted, emissions-related part
under this ECS Warranty shall be performed at no charge to the
owner at an Ardisam Authorized Warranty Service Facility.
(5) When the engine is inspected by an Ardisam Authorized Warranty Service Facility, the owner shall not be held responsible for
diagnostic costs if the repair is deemed warrantable.
(6) Ardisam shall be liable for damages to other original engine
components or approved modications proximately caused by a
failure under warranty of any emission-related part covered by the
ECS Warranty.
(7) Throughout the ECS Warranty Period, Ardisam shall maintain a
supply of warranted emission-related parts sucient to meet the
expected demand for such emission-related parts.
(8) Any Ardisam authorized and approved emission-related
replacement part may be used in the performance of any ECS Warranty maintenance or repairs and will be provided without charge
to the purchaser/owner. Such use shall not reduce Ardisam’s ECS
Warranty obligations.
(9) Unapproved, add-on, modied, counterfeit and/or “grey market”
parts may not be used to modify or repair an Ardisam engine. Such
use voids this ECS Warranty and shall be sucient grounds for
disallowing an ECS Warranty claim. Ardisam shall not be held liable
hereunder for failures of any warranted parts of an Ardisam engine
caused by the use of such an unapproved, add-on, modied, counterfeit and/or “grey market” part.
(2) Air Induction System
(i) Controlled hot air intake system.
(ii) Intake manifold.
(iii) Air lter.
(3) Ignition System
(i) Spark Plugs.
(ii) Magneto or electronic ignition system.
(iii) Spark advance/retard system.
(4) Exhaust Gas Recirculation (EGR) System
(i) EGR valve body, and carburetor spacer if applicable.
(ii) EGR rate feedback and control system.
(5) Air Injection System
(i) Air pump or pulse valve.
(ii) Valves aecting distribution of ow.
(iii) Distribution manifold.
(6) Catalyst or Thermal Reactor System
(i) Catalytic converter.
(ii) Thermal reactor.
(iii) Exhaust manifold.
(7) Particulate Controls
(i) Traps, lters, precipitators, and any other device used to cap-
ture particulate emissions.
(8) Miscellaneous Items Used in Above Systems
(i) Electronic controls.
(ii) Vacuum, temperature, and time sensitive valves and switch-
es.
(iii) Hoses, belts, connectors, and assemblies.
ENGLISH
EMISSION-RELATED PARTS INCLUDE THE FOLLOWING
(IF EQUIPPED):
(1) Fuel Metering System
(i) Carburetor and internal parts (and/or pressure regulator or
fuel injection system).
(ii) Air/fuel ratio feedback and control system.
(iii) Cold start enrichment system.
(iv) Fuel Tank.
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ENGLISH
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
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.
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