Page 1
Operator’s Manual
GAS/OIL
RATIO
50:1
Original Operating Instructions
WP4310
43cc Water Pump
Get parts online at
www.getearthquake.com
P/N: OMWP4310
ECN: 10159
REV 2: 10/08/13
© 2014 Ardisam, Inc.
All Rights Reserved
Page 2
Operator’s Manual
WP4310 43cc Water Pump
2 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 3
Operator’s Manual
WP4310 43cc Water Pump
INTRODUCTION
Congratulations on your investment in quality. Thank you for purchasing a 1-Inch Pump from Earthquake®. We have worked to
ensure that the pump meets the highest standards for usability and durability. With proper care, your1-Inch Pump 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 ........................................................................................................................................................................................................................................3
Safety ................................................................................................................................................................................................................................................ 4-6
Operation ........................................................................................................................................................................................................................................ 6-8
Maintenance and Storage .......................................................................................................................................................................................................9-10
Service, Troubleshooting and Repair ............................................................................................................................................................................... 11-12
Parts Breakdown ...................................................................................................................................................................................................................... 13-15
Notes ...................................................................................................................................................................................................................................................16
Warranty ..................................................................................................................................................................................................................................... 17-19
FEDERAL EMISSION 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, SERVICE AND MAINTENANCE LOG
Record the model number and serial number in the space provided for easy reference. Warranty is valid only if the completed registration is received by Earthquake within 30 days of purchase. You can register your warranty online by visiting www.getearthquake.
com. 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:
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.
3Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 4
SAFETY
Operator’s Manual
WP4310 43cc Water Pump
OWNER’S RESPONSIBILITY
It is the owner’s responsibility to accurately assemble
the pump for safe and eective use.
• Read and follow all safety instructions.
• Carefully follow all assembly instructions.
• Maintain the pump according to directions and
schedule included in this Earthquake operator's
manual.
• Ensure that anyone who uses the pump is familiar
with all controls and safety precautions.
SPECIAL MESSAGES
Your manual contains special messages to draw
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.
CAUTION
AVOID INJURY! THIS SYMBOL AND TEXT HIGHLIGHT
POTENTIAL HAZARDS OR DEATH TO THE OPERATOR
OR BYSTANDERS THAT MAY OCCUR IF THE HAZARDS
OR PROCEDURES ARE IGNORED.
IMPORTANT SAFETY PRECAUTIONS
Please read this section carefully. Operate the
water pump according to the safety instructions
and recommendations outlined here and inserted
throughout the text. Anyone who uses this water
pump must read the instructions and be familiar with
the controls.
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.
• Always keep hands, feet, hair and loose clothing
away from any moving parts on engine or pump.
• Do not allow children to operate this pump. Do not
allow adults to operate the pump without proper
instruction.
• Do not operate any power equipment under the
inuence of alcohol or drugs.
• Keep all screws, nuts and bolts tight.
• Engine should be turned o and cool, spark plug
wire must be removed from spark plug before any
repairs are attempted.
• Temperature of muer and nearby areas may
AVOID DAMAGE! THIS TEXT IS USED TO TELL THE
OPERATOR OF ACTIONS OR CONDITIONS THAT
MIGHT RESULT IN DAMAGE TO THE MACHINE.
NOTE: General information is given throughout
the manual that may help the operator in the
operation or service of the machine.
4 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
exceed 150° F (65° C). Avoid these areas.
• Never run engine indoors or in an enclosed area.
Engine exhaust contains carbon monoxide, an
odorless and deadly gas.
• Use only original equipment parts from Ardisam,
Inc., including all nuts and bolts.
• Never attempt to operate the pump without
priming water.
Page 5
Operator’s Manual
WP4310 43cc Water Pump
ENGINE SAFETY PRECAUTIONS
Warning Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide.
Carbon monoxide is a deadly, colorless, tasteless,
odorless gas which may be present even if you do
not smell or see engine exhaust. Levels of carbon
monoxide, which can be deadly, can be present for
days in an enclosed area that has poor ventilation.
Any level of carbon monoxide, if inhaled, can cause
headaches, drowsiness, nausea, dizziness, confusion
and eventually death. If you experience any of these
symptoms, seek fresh air and medical attention
immediately.
Preventing Carbon Monoxide Poisoning
• Never run engine indoors or in a conned area.
• 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 removed. (Examples include large holes
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 away from the operator.
• Never point the exhaust muer towards anyone.
Bystanders should always be many feet away from
the operation of the engine.
Gasoline Fires and Handling Fuel Safely
Fuel and fuel vapors are highly ammable. Never use
fuel where a spark or ame may be present. Never use
fuel where a potential source of ignition could occur.
(Examples include: hot water or space heaters, clothes
dryer, electric motors, etc.) Keep ames and sparks
away from engine and fuel to prevent res. Fuel res
spread very quickly and are highly explosive.
Prevention of Gasoline Fires
• Always ll fuel tank outside in a well ventilated area
with the engine stopped.
• Never remove the fuel cap or add fuel with the
engine running. Stop engine and allow to cool
before lling.
• Never drain fuel from engine in an enclosed area.
• Always wipe up excess (spilled) fuel from engine
before starting. Clean up spilled fuel immediately.
• If fuel spillage occurs, wipe away carefully and allow
fuel to dry before starting the engine.
• 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.
• 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).
• Do not store engine with fuel in fuel tank indoors.
Fuel and fuel vapors are highly explosive.
• During storage, screw down gas cap vent screw
tightly.
• Never pour fuel from engine fuel tank.
• Never siphon fuel by mouth to drain fuel tank.
• Always have an adult ll the fuel tank.
• Never allow anyone under the inuence of drugs or
alcohol to ll engine.
• Never allow children to ll the fuel tank.
5Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 6
Operator’s Manual
GAS OIL R AT I O
1 ga llo n 2.5 ounces 50:1
2 ga llo ns 5 o unces 50:1
5 ga llo ns 13 ounces 50:1
WP4310 43cc Water Pump
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.
This engine is designed to operate using a catalytic
converter which contributes to the engine’s
compliance with the EPA.
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
during and after operation.
• Always keep materials and debris away from
muer guard and other hot parts of the engine to
avoid res.
CAUTION
AVOID INJURY! HOT GASES ARE A NORMAL
BYPRODUCT OF A FUNCTIONING CATALYTIC
CONVERTER. FOLLOW ALL SAFETY INSTRUCTIONS
TO PREVENT BURNS AND FIRES.
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 engine or pump.
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 pump.
6. Replace spark plug wire
CAUTION
AVOID INJURY! ALWAYS WEAR HEARING
PROTECTION WHILE OPERATING ENGINE.
CAUTION
AVOID INJURY! PLEASE DO NOT START YOUR
WATER PUMP UNTIL YOU HAVE READ THE
PREVIOUS SECTION OF THIS MANUAL. ONCE
COMPLETED, FOLLOW THE STEPS BELOW TO
START YOUR PUMP.
OPERATION
STEPS FOR WORKING ON ENGINE OR
PUMP
CAUTION
DO NOT ALTER/MODIFY ENGINE OR PUMP:
AVOID INJURY! NEVER ALTER OR MODIFY
THE ENGINE FROM THE FACTORY. SERIOUS
INJURY OR DEATH MAY OCCUR IF ENGINE IS
MODIFIED OR ALTERED.
CAUTION
AVOID INJURY! WHEN WORKING ON OR
REPLACING PARTS FOR THE ENGINE OR PUMP
YOU MUST ALWAYS DISCONNECT SPARK PLUG
WIRE FROM THE SPARK PLUG AND KEEP IT
AWAY FROM THE SPARK PLUG.
1. Turn o engine switch.
2. Disconnect the spark plug wire from the spark plug.
PREPARING ENGINE FOR STARTING
GAS AND OIL
Quality
To operate the engine you must use a high quality
2-cycle oil to ensure that the engine operates
correctly for the life of the engine. Use unleaded
regular, unleaded premium or reformulated
automotive fuel only. It may contain up to 10%
ethanol, 10% gasohol, 15% MTBE, and 15% ETBE. DO
NOT use Methanol or leaded fuels.
Mixture
Run pump with a ratio of 50:1. DO NOT use marine
2-cycle oil. See chart below.
6 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 7
Operator’s Manual
WP4310 43cc Water Pump
MIXING FUEL AND FILLING FUEL TANK
CAUTION
AVOID INJURY! NEVER STORE ENGINE WITH
FUEL IN THE TANK INDOORS. FUEL AND FUEL
VAPORS ARE HIGHLY FLAMMABLE.
CAUTION
AVOID INJURY! 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.
CAUTION
AVOID INJURY! AN ADULT MUST ALWAYS
HANDLE AND FILL THE ENGINE WITH FUEL.
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.
Filling Fuel Tank
1. Shut-o engine and allow engine to completely
cool before lling the fuel tank.
2. Move to a well ventilated area or outdoors away
from ames and spark.
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 allowing space
for fuel to expand.
7. Immediately replace fuel cap and tighten. Wipe o
spilled fuel and allow to dry before starting engine.
CAUTION
AVOID INJURY! DO NOT START ENGINE IF FUEL
IS SPILLED. WIPE OFF EXCESS FUEL AND ALLOW
TO DRY. REMOVE ENGINE FROM AREA TO AVOID
SPARKS.
ASSEMBLY
1. Connect the suction hose to water pump inlet and
the discharge hose to pump outlet using provided
hose clamps.
3. Add recommended amount of 2-cycle oil. DO
NOT use 2-cycle marine oil.
4. Screw on container cap straight and tight.
5. Shake the container to mix fuel and oil.
6. Unscrew 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.
CAUTION
AVOID INJURY! ALWAYS HANDLE GAS IN A WELL
VENTILATED AREA, OUTDOORS, AWAY FROM
FLAMES OR SPARKS.
THIS ENGINE USES A GAS/OIL MIXTURE. DO NOT
RUN ON STRAIGHT GAS ONLY, ENGINE DAMAGE
WILL RESULT.
2. Attach suction screen to inlet hose.
NOTE: 1” suction hose is required.
NORMAL OPERATION
1. Always prime water pump fully with water before
starting engine. Loosen the ller cap and ll the pump
with priming water.
Outlet
Fill Port
Inlet
Drain Port
7Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 8
OPERATION
Operator’s Manual
WP4310 43cc Water Pump
STARTING AND STOPPING ENGINE
1. Move engine to a well ventilated area or outdoor
to prevent carbon monoxide poisoning.
2. Move to an area away from ames or sparks to
avoid ignition of vapors if present.
3. Remove all debris from air cleaner holes and fuel
cap to ensure proper air ow.
4. Turn switch to the ON position.
5. PRIMING:
• When using the primer bulb, allow the bulb to return
completely to its original position between pushes.
• Choke must be in the OFF or RUN position when
pushing or using the priming bulb.
First Start: Starting new engine for the rst time or
after running out of gas, prime three times.
Cold Start: Starting engine after it has been sitting or
stored briey with fuel in the tank, prime one time above
55° Fahrenheit or two times below 55° Fahrenheit.
Warm Start: Do not use primer or full choke if engine
did not run out of gas or has not cooled completely.
Flooding will occur.
6. CHOKE:
• Full choke position is dened by moving the
choke lever as far to the ON or CHOKE position as
possible. Half choke is dened when the choke
lever is between ON or CHOKE and OFF or RUN.
First Start & Cold Start: After priming, move choke
lever to full choke.
Warm Start: No choke or half choke is needed.
9. After engine starts running, move choke lever to
HALF CHOKE.
10. Move choke lever to OFF or RUN position and
move throttle to desired speed.
CAUTION
AVOID INJURY! IF ENGINE FAILS TO START AFTER
THE ABOVE OPERATIONS, PLEASE CONTACT
ARDISAM, INC. AT 8003456007.
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 pull on starter
rope. Flammable fuel can spray out and ignite
from a spark caused by the spark plug.
CAUTION
AVOID INJURY! NEVER LEAVE ENGINE RUNNING
WHILE UNATTENDED. TURN OFF AFTER EVERY
USE.
CAUTION
AVOID INJURY! STARTER ROPE CAN CAUSE AN
UNANTICIPATED JERK TOWARDS ENGINE. PLEASE
FOLLOW INSTRUCTIONS TO AVOID INJURY.
7. Grasp starter handle and pull out slowly, until
tension increases. Without letting handle retract, pull
rope with a rapid full arm stroke. Let rope return to its
original position very slowly. Repeat this step every
time the starter rope is pulled.
8. Pull recoil until engine res or runs.
NOTE: If engine fails to start after 5-6 pulls, push
primer one time and pull starter rope again.
8 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 9
MAINTENANCE AND STORAGE
CAUTION
TO PREVENT ACCIDENTAL STARTING:
AVOID INJURY! ENGINE MUST BE TURNED
OFF AND COOL, AND SPARK PLUG WIRE MUST
BE REMOVED FROM SPARK PLUG BEFORE
CHECKING AND ADJUSTING ENGINE OR
EQUIPMENT.
CAUTION
AVOID INJURY! TEMPERATURE OF MUFFLER
AND NEARBY AREAS MAY EXCEED 150° F 65°
C. AVOID THESE AREAS.
CAUTION
AVOID INJURY! CHECK PUMP OFTEN FOR
LOOSE NUTS AND BOLTS. KEEP THESE ITEMS
TIGHTENED.
PUMP MAINTENANCE
1. Keep all screws, nuts, and bolts tight.
2. For cold weather operation, store the unit in a cool
environment. Transferring the unit from a warm to a
cold area can cause build up of harmful condensation.
Operator’s Manual
WP4310 43cc Water Pump
ENGINE MAINTENANCE
Please read the maintenance schedule and observe
these recommendations to extend the life of your
engine.
Good maintenance is essential for safe, economical,
and trouble-free operation. It will also help reduce air
pollution. To help you properly care for your engine,
the following pages include a maintenance schedule,
routine inspection procedures, and simple maintenance procedures using basic hand tools. Other
service tasks that are more difficult, or require special
tools, are best handled by professionals and are
normally performed by a technician or other qualified
mechanic.
Maintenance, replacement or repair of the emissions
control devices and systems may be performed by
any non-road engine repair establishment or individuals. However, items must be serviced by an authorized
dealer to obtain "no charge" emissions control service.
The maintenance schedule applies to normal operating conditions. If you operate your engine under
unusual conditions, such as sustained high-load or
high-temperature operation, or use in unusually wet
or dusty conditions, consult your servicing dealer for
recommendations applicable to your individual needs
and use.
MAINTENANCE SCHEDULE
CAUTION
AVOID INJURY! NEVER STORE ENGINE WITH FUEL
IN THE TANK INSIDE A BUILDING. POTENTIAL
SPARKS MAY BE PRESENT FOR IGNITION OF FUEL
AND FUEL VAPORS.
CAUTION
AVOID INJURY! AN ADULT MUST ALWAYS DO
MAINTENANCE AND REPAIR ON ENGINE AND
ATTACHMENTS.
CAUTION
AVOID INJURY! ENGINE MUST BE SHUTOFF,
COOL, AND SPARK PLUG WIRE REMOVED
BEFORE ANY REPAIR OR MAINTENANCE CAN
BE DONE.
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
9Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 10
Operator’s Manual
WP4310 43cc Water Pump
Cooling Fins
• Cooling ns, air inlets and linkages must be free
from any debris before each use.
Air Filters
• 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 more frequently if engine is
operated in extremely dusty conditions.
Steps for Cleaning Air Filters
NEVER TWIST AIR FILTERS WHEN CLEANING.
ALWAYS PRESS.
1. Wash in warm water with mild soap until dirt and debris
are removed. Press lter when washing, do not twist.
2. Rinse in warm water until soap and dirt are
removed.
3. Dry lter by wrapping in a clean cloth and pressing
lter until dry.
4. Apply oil to the entire lter.
5. Remove excess oil.
6. Attach the lter and lter cover to the engine.
Spark Plug
• Check spark plug every 50 operating hours.
1. Remove dirt and debris around the spark plug
before removing.
2. Remove spark plug and replace if any of the following
have occurred: pitted electrodes, burned electrodes,
cracked porcelain or deposits around the electrodes.
3. Check spark plug for proper gap (.025” to .030”).
4. After analysis of the spark plug, install original or a
new spark plug and tighten securely.
NOTE: DO NOT OVERTIGHTEN!
NOTE: CROSS REFERENCE SPARK PLUG IS A
CHAMPION CJ8.
Carburetor
• Never tamper with factory setting of the
carburetor.
TRANSPORTING YOUR WATER PUMP
1. Never transport engine inside an enclosed space
or 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 gasoline container. DO NOT
SIPHON BY MOUTH.
4. Run engine to expand fuel in the carburetor and
fuel tank. Always run engine in a well ventilated area.
5. Wipe away any spilled fuel from engine and pump.
Allow to dry.
LONG TERM STORAGE
• If your pump will not be used for more than one
month, prepare it for long-term storage.
Steps for Long Term Storage
1. Add fuel stabilizer before storing for long periods
of time.
2. Run engine for 10-15 minutes to ensure that the
stabilizer reaches the carburetor.
3. Remove the remaining fuel from the gas tank into
an approved fuel container.
4. Drain water from pump if storing in temperatures
below freezing.
CAUTION
AVOID INJURY! TO AVOID INJURY OR DEATH,
NEVER SIPHON FUEL BY MOUTH.
CAUTION
AVOID INJURY! NEVER STORE WATER PUMP WITH
FUEL IN THE FUEL TANK INSIDE AN ENCLOSED
AREA OR BUILDING.
5. Store in an upright position.
6. Remove all debris from engine and water pump.
10 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 11
SERVICE, TROUBLESHOOTING AND REPAIR
Operator’s Manual
WP4310 43cc Water Pump
SERVICE INFORMATION
IN CASE OF A SERVICE PROBLEM, DO NOT SEND
UNIT BACK TO RETAILER. CONTAC T ARDISAM, INC.
AT 800-345-6007. WE WELCOME YOUR CALL.
At Ardisam, we build quality and durability into
the design of our products. No amount of careful
design by us, and careful maintenance by you, can
guarantee a repair-free life for your water pump. Most
repairs will be minor and easily xed by following
the suggestions in the troubleshooting guide in this
section. This guide will help you pinpoint the causes
of common problems and identify solutions.
For more complicated repairs, you may want to rely
on your retailer, an authorized mechanic or Ardisam,
Inc. Contact your retailer for a list of authorized
mechanics in your area. A parts catalog is included in
this section.
ORDERING REPAIR PARTS
Parts can be obtained from the store where your water
pump was purchased or direct from the factory. To order
from the factory, call or write to:
Ardisam, Inc.
1160 Eighth Avenue; P.O. Box 666
Cumberland, Wisconsin 54829
800-345-6007 · Fax (715) 822-2223
Email: info@ardisam.com
www.ardisam.com
www.getearthquake.com
Please include the following information with your order:
1. Part numbers
2. Part description
3. Quantity
4. Model number and serial number
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 write us at the
address found in the next column under the section
"Order Repair Parts."
11Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 12
SERVICE, TROUBLESHOOTING AND REPAIR
CAUTION
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.
TROUBLESHOOTING
Operator’s Manual
WP4310 43cc Water Pump
Problem Possible cause
Engine will not start
Engine runs rough, oods during
operation
Engine is hard to start
Engine misses or lacks power
Engine runs, but has no power
Engine revs too high
1. Power switch o
2. Spark plug wire disconnected
3. Spark plug has no spark
1. Dirty air cleaner
2. Choke partially engaged
3. Carburetor out of adjustment
1. Stale fuel
2. Spark plug wire loose
3. Dirty carburetor
1. Clogged fuel tank
2. Clogged air cleaner
3. Improper carburetor adjustment
4. Spark plug dirty, improper gap, or
wrong type
1. Choke on
2. Carburetor out of adjustment
3. Worn engine lower seal
1. Low fuel in tank
Remedy/Action
1. Flip switch to on position
2. Connect spark plug wire to spark plug
3. Clean or replace spark plug
1. Clean or replace air cleaner
2. Turn o choke
3. Call factory
1. Drain old fuel and replace with fresh.
Use gas stabilizer at end of season
2. Make sure spark wire is securely
attached to spark plug
3. Clean carburetor, use gas stabilizer,
new gas can
1. Remove and clean
2. Clean or replace
3. Call factory
4. Replace spark plug and adjust gap
1. Turn o choke after engine is running
2. Call factory
3. Call factory
1. Add fuel to tank
Engine runs, but doesn’t pump water
1. Pump not primed
2. Suction hose elevated too high
3. Strainer clogged
4. Hose(s) damaged
1. Prime water pump as directed in
manual
2. Lower suction hose
3. Unclog foreign objects from strainer
4. Replace hoses
12 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 13
WP4310 WATER PUMP ENGINE BREAKDOWN
Operator’s Manual
WP4310 43cc Water Pump
13Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 14
WP4310 WATER PUMP BREAKDOWN
10
25
24
Operator’s Manual
WP4310 43cc Water Pump
23
10
37
43
26
25
24
23
15
36
27
16
28
29
17
20
19
22
21
33
32
31
30
16
28
29
31
34
6
4
3
2
14
12
11
10
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8
40
14 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
41
9
7
6
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4
3
4
3
2
35
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Page 15
WP4310 WATER PUMP PARTS LIST
MINIMUM ORDER ...........................................................................................................$10.00
Operator’s Manual
WP4310 43cc Water Pump
ENGINE PARTS
Part # Description Qty.
1021 SWITCH, ROCKER ..................................................................1
300429 PLATE, RECOIL ........................................................................1
300430 RECOIL ASSEMBLY ............................................................... 1
300435 FILTER, AIR ............................................................................... 1
300438 BOLT W/WASHER, M5 X 25MM ........................................ 2
300439 BOLT W/WASHER, M5 X 18MM ..................................... 13
300454 BASE, INTAKE .......................................................................... 1
300455 PLATE, INTAKE COVER ADAPTER ....................................1
300456 BOLT, M5 X 50MM ................................................................. 2
300457 COVER, AIR FILTER ................................................................ 1
300463 GROMMET, ENGINE SHROUD .......................................... 1
300467 PIN, LOCATING ....................................................................... 2
300471 BOLT, M5 X 12MM ................................................................. 3
300472 COIL, IGNITION ......................................................................1
300475 GASKET, MUFFLER ............................................................... 1
300476 GASKET, INTAKE ....................................................................2
300477 HEAT DISK ................................................................................ 1
300478 WINDPIPE, INTAKE ...............................................................1
300479 GASKET, CARBURETOR ....................................................... 1
300480 SPACER, FUEL TANK THREADED .....................................2
300481 ORING ...................................................................................... 1
300482 SHROUD, ENGINE ................................................................. 1
300483 COVER, ENGINE SHROUD ..................................................1
300484 FLYWHEEL, MAGNETO........................................................1
300487 MOUNT RING AND SHROUD ...........................................1
300488 CHOKE NOT SHOWN ........................................................ 1
300491 RECOIL CLUTCH ....................................................................1
300492 NUT, M6 ....................................................................................2
300493 BOLT, STUD M6 X 62MM .................................................... 2
300494 GROMMET, FUEL TANK, 2HOLE .....................................1
300497 HOSE, PRIMER LINE 4” ......................................................... 1
300498 HOSE, PRIMER LINE 9” ......................................................... 1
3004103 FILTER, FUEL NOT SHOWN .............................................1
3004106 GUARD, FLYWHEEL NOT SHOWN ...............................1
3004109 PRIMER BULB NOT SHOWN ...........................................1
3004120 SCREW, CHOKE LEVER NOT SHOWN .........................1
3004122 FUEL TANK ............................................................................... 1
3004123 CAP, FUEL, MANUAL VENTING ........................................ 1
3004124 CARBURETOR ......................................................................... 1
3004126 THROTTLE LEVER ASSEMBLY NOT SHOWN ............1
3004127 ENGINE, 2CYCLE 43CC VIPER ..........................................1
3004128 LEVER, THROT TLE .................................................................1
3004129 WASHER WITH TAB, THROTTLE LEVER ......................... 1
3004130 WASHER, FLAT, THROTTLE LEVER .................................. 1
3004131 WASHER, NYLON, THROTTLE LEVER .............................1
3004132 SCREW, THROTTLE LEVER ................................................. 1
4812 COVER, MUFFLER, METAL .................................................1
4813 MUFFLER, CATALYTIC CONVERTER ...............................1
BM6A SPARK PLUG CHAMPION CJ8 ........................................1
CHASSIS PARTS
Key # Part # Description Qty.
1 42128 BOLT, ENGINE MOUNT...................................... 2
2 42131 BOLT, RUBBER FOOT ..........................................4
3 42132 WASHER, RUBBER FOOT .................................. 4
4 42127 FOOT, RUBBER ..................................................... 4
5 42129 BASE PLATE, PUMP ............................................ 1
6 42133 NUT, RUBBER FOOT ........................................... 4
7 42118 MOUNT, ENGINE ................................................. 1
8 42141 OUTPUT SHAFT, PUMP ..................................... 1
9 42121 BOLT, PUMP ADAPTER PLATE ........................ 4
10 42123 BOLT, PUMP COVER PLATE ............................. 7
11 42104 BOLT, HANDLE LONG ........................................ 1
12 42103 HANDLE W/ GRIP ................................................ 1
14 42101 MOUNT, ENGINE PUMP .................................... 1
15 42140 BACK COVER, PUMP .......................................... 1
16 42112 BOLT, PUMP HOUSING PLATE........................ 4
17 42126 SEAL, MECHANICAL .......................................... 1
19 42120 GASKET, RUBBER PUMP ................................... 1
20 42134 IMPELLER ............................................................... 1
21 42122 HOUSING, VOLUTE ............................................. 1
22 42142 SEAL, VOLUTE HOUSING ................................. 1
23 42105 NUT, WING HOSE ADAPTER ........................... 2
24 42106 NIPPLE BARBED, 1” ............................................. 2
25 42107 SEAL, 1” NIPPLE ................................................... 2
26 42108 BOLT, OUTLET ELBOW ...................................... 2
27 42139 OUTLET ELBOW .................................................. 1
28 42109 CAP, FILL ................................................................. 2
29 42110 SEAL, FILL CAP ..................................................... 2
30 42114 SEAL, OUTLET ELBOW ...................................... 1
31 42115 BOLT, PUMP HOUSING ..................................... 6
32 42125 GASKET/FLOW STOP, COVER PLATE ............ 1
33 42124 PLATE, PUMP COVER ......................................... 1
34 42111 HOUSING, PUMP ................................................. 1
35 42130 BOLT, ENGINE PUMP MOUNT ........................ 2
36 42135 CLAMP, HOSE ....................................................... 3
37 42137 SUCTION SCREEN, COMPLETE ...................... 1
39 42102 ADAPTER PLATE, PUMP ................................... 1
40 42116 MOUNT, ENGINE FUEL TANK .......................... 1
41 42117 GRIP, RUBBER FUEL TANK ................................ 1
42 42119 SPACER, ENGINE PUMP .................................... 4
43 48166 ADAPTER ASSEMBLY, 1" NPSH FEMALE
TO 3/4" GHT MALE ............................................. 2
42100 ENGINE ................................................................... 1
15Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 16
NOTES
Operator’s Manual
WP4310 43cc Water Pump
16 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 17
Operator’s Manual
WP4310 43cc Water Pump
WARRANTY TERMS AND CONDITIONS
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.
*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
17Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 18
FEDERAL EMISSIONS CONTROL WARRANTY STATEMENT
Operator’s Manual
WP4310 43cc Water Pump
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)
18 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 19
Operator’s Manual
WP4310 43cc Water Pump
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.
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.
19Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
Page 20
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.
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
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