Champion Power Equipment 100166 User manual

OPERATOR'S MANUAL
MODEL #100166
1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT
Champion Power Equipment, Inc., Santa Fe Springs, CA USA
or visit championpowerequipment.com
SAVE THESE INSTRUCTIONS. This manual contains important safety precautions which should be read and understood before operating the product. Failure to do
so could result in serious injury. This manual should remain with the product.
Specifications, descriptions and illustrations in this manual are as accurate as known at the time of publication, but are subject to change without notice.
REGISTER YOUR PRODUCT ONLINE
at championpowerequipment.com
3713-M-OP REV 20220405 EN

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT TABLE OF CONTENTS
2
TABLE OF CONTENTS
Introduction...................................................3
Safety Definitions ..........................................3
Important Safety Instructions.......................4
Fuel Safety ........................................................ 5
Safety and Dataplate Labels...................................... 7
Controls and Features ...................................8
Water pump ....................................................... 8
Parts Included ..................................................... 9
Tools Included ..................................................... 9
Assembly ..................................................... 10
Unpacking ........................................................ 10
Install the Handle................................................. 10
Add Engine Oil.................................................... 10
Add Fuel .......................................................... 11
Operation..................................................... 12
Water Pump Location ............................................ 12
Priming the Pump ................................................ 13
Connecting the Inlet Hose ....................................... 13
Connecting the Outlet Hose...................................... 14
Starting the Engine............................................... 15
Stopping the Engine.............................................. 15
Maintenance ................................................ 16
Cleaning the Water pump ........................................ 16
Changing the Engine Oil ......................................... 16
Cleaning and Adjusting the Spark Plug(s) ....................... 16
Cleaning the Air Filter ............................................ 17
Adjusting the Governor........................................... 17
Maintenance Schedule........................................... 17
Storage ........................................................ 18
Specifications.............................................. 19
Water pump Specifications ...................................... 19
Engine Specifications ............................................ 19
Oil Specifications................................................. 19
Fuel Specifications ............................................... 19
Temperature Specifications...................................... 19
Troubleshooting...........................................20

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT INTRODUCTION
3
SAFETY DEFINITIONS
The purpose of safety symbols is to attract your attention to
possible dangers. The safety symbols, and their explanations,
deserve your careful attention and understanding. The safety
warnings do not by themselves eliminate any danger. The
instructions or warnings they give are not substitutes for proper
accident prevention measures.
DANGER
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE
NOTICE indicates information considered important, but not
hazard-related (e.g., messages relating to property damage).
INTRODUCTION
Congratulations on your purchase of a Champion Power Equipment
(CPE) product. CPE designs, builds, and supports all of our
products to strict specifications and guidelines. With proper
product knowledge, safe use, and regular maintenance, this
product should bring years of satisfying service.
Every effort has been made to ensure the accuracy and
completeness of the information in this manual at the time of
publication, and we reserve the right to change, alter and/or
improve the product and this document at any time without prior
notice.
CPE highly values how our products are designed, manufactured,
operated, and serviced as well as providing safety to the operator
and those around the water pump. Therefore, it is IMPORTANT to
review this product manual and other product materials thoroughly
and be fully aware and knowledgeable of the assembly, operation,
dangers and maintenance of the product before use. Fully
familiarize yourself, and make sure others who plan on operating
the product fully familiarize themselves too, with the proper safety
and operation procedures before each use. Please always exercise
common sense and always err on the side of caution when
operating the product to ensure no accident, property damage,
or injury occurs. We want you to continue to use and be satisfied
with your CPE product for years to come.
When contacting CPE about parts and/or service, you will need to
supply the complete model and serial numbers of your product.
Transcribe the information found on your product’s nameplate
label to the table below
CPE TECHNICAL SUPPORT TEAM
1-877-338-0999
MODEL NUMBER
100166
SERIAL NUMBER
DATE OF PURCHASE
PURCHASE LOCATION

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT IMPORTANT SAFETY INSTRUCTIONS
4
IMPORTANT SAFETY INSTRUCTIONS
WARNING
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
DANGER
Water pump engine exhaust contains carbon monoxide, a
colorless, odorless, poisonous gas. Breathing carbon monoxide
will cause nausea, dizziness, fainting or death. If you start to
feel dizzy or weak, get to fresh air immediately.
OPERATE WATER PUMP OUTDOORS ONLY IN A WELL
VENTILATED AREA AND POINT EXHAUST AWAY.
DO NOT operate the water pump inside any building, including
garages, basements, crawlspaces and sheds, enclosure or
compartment.
DO NOT allow exhaust fumes to enter a confined area through
windows, doors, vents or other openings.
DANGER
Using an engine indoors CAN KILL YOU IN MINUTES. Water
pump exhaust contains carbon monoxide. This is a poison you
cannot see or smell.
NEVER use inside a home or garage, EVEN IF doors and
windows are open.
ONLY use OUTSIDE and far away from windows, doors,
and vents.
Install battery-operated carbon monoxide alarms or plug-in
carbon monoxide alarms with battery back-up according to the
manufacturer’s instructions.
DANGER
Rotating parts can entangle hands, feet, hair, clothing and/or
accessories. Traumatic amputation or severe laceration can
result.
Keep hands and feet away from rotating parts.
Tie up long hair and remove jewelry.
DO NOT wear loose-fitting clothing, dangling drawstrings or
items that could become caught.
DANGER
The water pump develops powerful force.
DO NOT move the water pump when it is in use. DO NOT use
hoses or connectors that are worn, damaged or frayed. DO
NOT allow children or unqualified persons to operate or service
the water pump. DO NOT open top plug or drain plug.
WARNING
DO NOT immerse this unit in water.
WARNING
Spark from removed spark plug wire can result in fire or
electrical shock.
When servicing the water pump:
Disconnect the spark plug wire and place it where it cannot
contact the plug or any other metal object.
DO NOT check for spark with the plug removed.
Use only approved spark plug testers.
WARNING
Running engines produce heat. Severe burns can occur on
contact. Combustible material can catch fire on contact.
DO NOT touch hot surfaces.
Avoid contact with hot exhaust gases.
Allow equipment to cool before touching.
Maintain at least 3 ft. (91.4 cm) of clearance on all sides to
ensure adequate cooling.
Maintain at least 5 ft. (1.5 m) of clearance from combustible
materials.
WARNING
Rapid retraction of the recoil cord will pull hand and arm
towards the engine faster than you can let go. Broken bones,
fractures, bruises or sprains could result. Unintentional
startup can result in entanglement, traumatic amputation or
laceration.
When starting engine, pull the recoil cord slowly until
resistance is felt and then pull rapidly to avoid kickback.
WARNING
DO NOT pump salt, sludge, sewer, sea, or any other type of
water containing solid material.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT IMPORTANT SAFETY INSTRUCTIONS
5
WARNING
Water pumped through this unit shall not be used as drinking
water.
CAUTION
Pumping solids through the pump, impeller or hoses is not
recommended.
CAUTION
Exceeding the water pump’s specification for maximum head
can damage the water pump and/or hose kits connected to it.
DO NOT modify the water pump in any way.
DO NOT attempt to exceed the rated flow. Attempting to
increase the rated flow may damage the unit and/or shorten
its life.
CAUTION
Improper treatment or use of the water pump can damage it,
shorten its life or void the warranty.
Use the water pump only for intended uses.
Operate only on level surfaces.
DO NOT expose water pump to excessive moisture, dust,
or dirt.
DO NOT allow any material to block the cooling slots.
DO NOT use the water pump if:
–Equipment sparks, smokes or emits flames
–Equipment vibrates excessively
Fuel Safety
DANGER
GASOLINE AND GASOLINE VAPORS ARE HIGHLY
FLAMMABLE AND EXPLOSIVE.
Fire or explosion can cause severe burns or death.
Gasoline and gasoline vapors:
–Gasoline is highly flammable and explosive.
–Gasoline can cause a fire or explosion if ignited.
–Gasoline is a liquid fuel but it’s vapors can ignite.
–Gasoline is a skin irritant and needs to be cleaned up
immediately if spilled on skin or clothes.
–Gasoline has a distinctive odor, this will help detect potential
leaks quickly.
–Gasoline expands or contracts with ambient temperatures.
Never fill the gasoline tank to full capacity, as gasoline needs
room to expand when temperatures rise.
–In the case of any petroleum gasoline fire, flames should never
be extinguished unless the fuel supply valve can be turned
OFF. By not doing so, if a fire is extinguished and the supply
of fuel is not turned OFF, an explosion hazard could be created.
When adding or removing gasoline:
DO NOT light or smoke cigarettes.
Turn the water pump off and let cool for at least two minutes
before removing the gasoline cap. Always loosen the cap slowly to
relieve pressure in the tank.
Only fill or drain gasoline outdoors in a well-ventilated area.
DO NOT pump gasoline directly into the water pump at the gas
station. Always use an approved container to transfer the fuel to
the water pump.
DO NOT overfill the gasoline tank.
Always keep gasoline away from sparks, open flames, pilot lights,
heat and other sources of ignition.
When starting the water pump:
DO NOT attempt to start a damaged water pump.
Always check that the gasoline cap, air filter, spark plug, fuel lines
and exhaust system are properly in place.
Always allow spilled gasoline to evaporate fully before attempting
to start the engine.
Always be certain that the water pump is resting firmly on level
ground.
When operating the water pump:
DO NOT move or tip the water pump during operation.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT IMPORTANT SAFETY INSTRUCTIONS
6
When transporting or servicing the water pump:
Always check that the fuel valve is in the OFF position and the
gasoline tank is empty.
Disconnect the spark plug wire.
When storing the water pump:
Store away from sparks, open flames, pilot lights, heat and other
sources of ignition.
Do not store water pump or gasoline near furnaces, water heaters,
or any other appliances that produce heat or have automatic
ignitions.
DANGER
NEVER place a gasoline container, gasoline tank, or any
combustible material in the path of the exhaust stream during
operation of the engine.
WARNING
Never use a gasoline container, gasoline tank, or any other fuel
item that is broken, cut, torn or damaged.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT IMPORTANT SAFETY INSTRUCTIONS
7
Safety and Dataplate Labels
These labels warn you of potential hazards that can cause serious injury. Read them carefully.
If a label comes off or becomes hard to read, contact Technical Support Team for possible replacement.
LABEL DESCRIPTION
A
CALL CUSTOMER SE RVICE / LLA ME A NUESTRO EQUIPO DEAT ENCIÓN AL CLIENTE / COMMUNIQUER AVEC NOTRE ÉQ UIPE DE SERVICE À LA CLIEN TELE
DO NOT RETURN THIS PRODUCT TO THE STORE! / ¡NO DEVUELVA ESTE PRODUCTO A LA TIENDA!
1-877-338-0999
ÉVITER DE RETOURNER CE PRODUIT AU MAGASIN!
El usa de este producto en
interiores PUEDE
CAU SARL E LA MUE RTE EN
MINUTOS . El escape
contiene monóxido de
carbono. Éste es un veneno
que no se puede ver ni oler.
PELIGRO DE MONÓXIDO
DE CARBONO
CARBON MONOXIDE HAZARD
Using this product indoors CAN KILL
YOU IN MINUT ES. Exhaust contains
carbon monoxide. This is a poison you
cannot see or smell.
Utiliser de cet produit à l’intérieur PEUT VOU S TUER
EN QUELQU ES MINUTES. L’échapp ement du produit contient
du monoxyde de carbone. Il s’agit d’un poison que vois ne pouvez ni voir ni senti.
RISQUE DE MONOXYDE DE CARBONE
NUCNA lo use dentro
del hogar ni el garaje,
INCL USO si las puer tas y
ventanas están abiertas Úselo SÓLO a la INTEMPERIE lejos
de ventanas, puertas y orificios de
ventilación.
NEVER use inside a home or garage,
EV EN IF doors and windows are open.
ONLY use OUTSIDE and far away from windows,
doors, and vents.
Ne l’utilisez JAMAIS dans la maison ou le
garage MÊME SI les portes et les fenêtres
sont ouvertes.
Utilisez-le UNIQUEMENT À L'EXTÉRIEUR, loins
des fenêtres, portes et trappes de ventilation
DANGERPELIGRO
K485
ColorsAPN 3710-L-SF
Rev A
Size 86.3 x 61.7 mm
Artwork Notes
T o be printed on white substrate.
Revision Changes
---
This ar twork belongs to Champion Power Equipment. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Safety Symbols/
CO Danger
B
K485
ColorsAPN 3708-L-SF
Rev A
Size 10 x 20 mm
Artwork Notes
To be printed on white substrate.
Revision Changes
---
This artwork belongs to Champion Power Equipment. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Hot Surface
C
DON’T RUN DRY.
FULLY PRIME THE PUMP BEFORE RUNNING.
NE TOURNEZ PAS À SEC. AMORCER PLEINEMENT LA
POMPE AVANT DE L’ACTIONNER.
MODEL/MODELO/MODÈLE 100166
DELIVERY VOLUME
VOLUMEN DE PRODUCCIÓN
VOLUME DE SORTIE
30 gal./min.
114 L/min.
TOTAL HEAD
ALTURA TOTAL
TÊTE TOTALE
95 ft.
29 m
CONNECTION
CONEXION
CONNEXION
1 in.
2,5 cm
Champion Power Equipment, Inc.
12039 Smith Ave.
Santa Fe Springs, CA 90670 USA
1-877-338-0999
www.championpowerequipment.com
MADE IN CHINA / HECHO EN CHINA / FABRIQUÉ EN CHINE
ATTENTION
CAUTION ATENCIÓN
NO LA USE SIN LÍQUIDO. CEBE COMPLETAMENTE LA
BOMBA ANTES DE HACERLA FUNCIONAR.
K109
ColorsAPN 3707-L-PR
Rev A
Size 82.6 x 116.5 mm
Artwork Notes
T o be printed on white substrate.
Revision Changes
---
This ar twork belongs to Champion Power Equipmen t. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Dataplate
A
C
B

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT CONTROLS AND FEATURES
8
CONTROLS AND FEATURES
Read this operator’s manual before operating your water pump. Familiarize yourself with the location and function of the controls and
features. Save this manual for future reference.
Water pump
1. Drain Plug
2. 1 in. (2.5 cm) Inlet – 1 in. (2.5 cm) inlet connector.
3. 1 in. (2.5 cm) Outlet – 1 in. (2.5 cm) outlet connector.
4. Handle
5. Air Filter – Protects the engine by filtering dust and debris
from the air intake.
6. Fuel Tank – 0.145 gal. (550 mL)
7. Throttle Lever – Used to adjust engine speed.
8. Off Button – Press to stop the unit.
9. Recoil Starter – Used to start the engine.
10. Priming Button – Used to prime fuel for starting.
11. Choke lever – Used to start the engine.
12. Spark Plug and Connector Wire
13. Muffler
1
2
3
4
12
5
8 7 6
9
10
11
13

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT CONTROLS AND FEATURES
9
Parts Included
Accessories
Hose Kit
16.4 ft. x 1 in. (5 meter x 25mm) Intake Hose ....................1
26.2 ft. x 1 in. (8 meter x 25mm) Discharge Hose................1
Hose Connector with Rubber gasket (Straight ) ..................1
Hose Connector with Rubber gasket (90º ) .......................1
Intake Filter Screen ................................................1
Hose Clamps .......................................................3
Assembly Parts
Handle ..............................................................1
Nut, M12x1.25 (for handle) ........................................1
Tools Included
Tool Kit..............................................................1

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT ASSEMBLY
10
ASSEMBLY
Your water pump requires some assembly. This unit ships from our
factory without oil. It must be properly serviced with fuel and oil
before operation.
If you have any questions regarding the assembly of your water
pump, call our Technical Support Team at 1-877-338-0999.
Please have your serial number and model number available.
Unpacking
1. Set the shipping carton on a solid, flat surface.
2. Remove everything from the carton except the water pump.
3. Carefully cut each corner of the box from top to bottom. Fold
each side flat on the ground to provide a surface area to work
with the water pump.
Install the Handle
1. Hand thread the M12 x 1.25 nut onto the handle base, up to a
point where it naturally stops. (A)
2. DO NOT try to thread the nut after that stop point with any
wrench, pilers, or other device.
3. Hand thread the handle/nut combo into the threaded hole on
the pump side cover top. (B)
A
B
4. Once securely tightened the handle should face away from
the outlet and towards the engine. (C)
D
C
CAUTION
Hand tighten the nut and handle only. Any excess force, with
tools or otherwise, may strip or break the threads on the
handle or side cover hole.
NOTICE
There will be some threading left on the handle that will stick out
of the nut after installation is secured. This is normal and should
be left unthreaded. (D)
Add Engine Oil
WARNING
DO NOT attempt to crank or start the engine before it has been
properly filled with the recommended type and amount of oil.
Damage to the water pump as a result of failing to follow these
instructions will void your warranty.
NOTICE
The recommended oil type for typical use is 10W-30
automotive oil. However, using the listed conventional oils
shown in the “Recommended Engine Oil Type” chart may be
used for typical use including the first 5 hours of the break-in
run time period of the engine.
If running water pump in extreme temperatures, refer to the
“Recommended Engine Oil Type” chart.
-20 020 40 60
Ambient temperature
Recommended Engine Oil Type
80 100 120
-28.9
°F
°C -17.8 -6.7 4.4 15.6 26.7 37. 8 48.9
10W-30
5W-30 Full Synthetic
10W-405W-30
1. Place the water pump on a flat, level surface.
2. Remove oil fill cap/dipstick to add oil.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT ASSEMBLY
11
3. Using a funnel, add up to 2.4 fl. oz. (70 ml) of oil (not
included) and replace oil fill cap/dipstick. It is recommended
to only fill to the base of the oil fill hole. DO NOT OVERFILL.
4. Check engine oil level at every use and add as needed.
MAX
OIL DIP STICK
NOTICE
Once oil has been added, a visual check should show oil about
1-2 threads from running out of the fill hole.
When using the dipstick to check oil level, DO NOT screw in
the dipstick while checking.
NOTICE
Check oil level often during the break-in period. Refer to the
Maintenance section for recommended service intervals.
CAUTION
This engine is NOT equipped with a low oil shut-off and will
NOT stop when the oil level in the crankcase falls below the
threshold level.
NOTICE
The first 5 hours of run time are the break-in period for the
unit. During the break in period stay at or below 50% of the
running watt rating and vary the load occasionally to allow
stator windings to heat and cool. Adjusting the load will also
cause engine speed to vary slightly and help seat piston rings.
After the 5 hour break-in period, change the oil.
NOTICE
Synthetic oil may be used after the 5 hour initial break-in
period. Using synthetic oil does not decrease the recommended
oil change interval. Full synthetic 5W-30 oil will aid in starting
in cold ambient < 41º F (5º C) temperatures.
Add Fuel
DANGER
Gasoline vapors are highly flammable and extremely explosive.
DO NOT light or smoke cigarettes. Fire or explosion can cause
severe burns or death.
Only fill or drain fuel outdoors in a well-ventilated area. DO
NOT pump gasoline directly into the water pump. Use an
approved container to transfer the fuel to the water pump.
Never use a gasoline container, gasoline tank, or any other fuel
item that is broken, cut, torn or damaged.
DO NOT overfill the gasoline tank. Always keep fuel away from
sparks, open flames, pilot lights, heat and other sources of
ignition.
Use clean, fresh, regular unleaded gasoline with a minimum
octane rating of 87 and an ethanol content of 10% or less by
volume. ybc
DO NOT mix oil with gasoline.
1. Remove the gasoline cap.
2. Slowly add gasoline to the tank. DO NOT OVERFILL. Gasoline
can expand after filling. A minimum of ¼ in. (6.4 mm) of
space left in the tank is required for gasoline expansion,
although more than ¼ in. (6.4 mm) is recommended. Gasoline
can be forced out of the tank as a result of expansion if
overfilled, and can affect the stable running condition of the
water pump.
3. Screw on the gasoline cap and wipe away any spilled fuel.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT OPERATION
12
CAUTION
Use unleaded gasoline with a minimum octane rating of 87
and an ethanol content of 10% or less by volume.
DO NOT light cigarettes or smoke when filling the tank.
DO NOT mix oil and gasoline.
DO NOT overfill the tank. Fill tank to approximately ¼ in.
(6.4 mm) below the top of the tank to allow for gasoline
expansion.
DO NOT pump gasoline directly into the water pump at the
pump. Use an approved fuel container to transfer the gasoline
to the water pump.
DO NOT fill tank indoors.
DO NOT fill tank when the engine is running or hot.
WARNING
Pouring gasoline too fast through the fuel screen may result
in gasoline splashing over the water pump and operator while
filling.
NOTICE
The water pump engine works well with 10% or less ethanol
blended gasoline. When using ethanol-gasoline blends there
are some issues worth noting:
–Ethanol-gasoline blends can absorb more water than
gasoline alone.
–These ethanol blends can eventually separate, leaving
water or a watery goo in the tank, fuel valve and
carburetor. The compromised gasoline can be drawn into
the carburetor and cause damage to the engine and/or
create potential hazards.
–If a fuel stabilizer is used, confirm that it is formulated to
work with ethanol-gasoline blends.
–Any damages or hazards caused by using ethanol blended
gasoline higher than 10% by volume, improperly stored
gasoline, and/or improperly formulated stabilizers, are not
covered by manufacturer’s warranty.
It is advisable to always shut off the gasoline supply and
run the engine to starvation after each use. See Storage
instructions for extended non-use.
OPERATION
Water Pump Location
WARNING
Place the water pump in a well ventilated area. NEVER place
the water pump near vents or intakes where exhaust fumes
could be drawn into occupied or confined spaces. Carefully
consider wind and air currents when positioning water pump.
Water pumps should always be operated on a flat, level
surface at all times (even when not in operation).
Water pumps must have a minimum of 5 feet (1.5 m) of
clearance from all combustible material.
Water pumps must also have a minimum of 3 feet (91.4 cm)
of air flow clearance on all sides to allow for adequate
performance cooling, maintenance and servicing.
Place the pump on a level surface free from any obstructions
or potential hazards. The pump should be placed close to the
water level to ensure maximum pump performance.
Always allow water pumps to properly cool before transport or
for storage purposes.
Failure to follow proper safety precautions may result in
personal injury, damage to the water pump and void the
manufacturer’s warranty.
Pump output will be affected by the type, length, and size of the
suction and discharge hoses. The pumping height, also known as
the total head, is the distance from the water level to the point of
discharge. As this distance increases, pump output decreases.
The discharge capacity is greater than the suction capacity.
Therefore, it is important that the suction head is less than the
discharge head.
The time required to draw water from the source to the pump
(self-priming time) can be decreased by minimizing the suction
head.
TOTAL HEAD
DISCHARGE HEAD
SUCTION HEAD

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT OPERATION
13
Priming the Pump
WARNING
DO NOT run the pump dry.
Running the pump dry can destroy the pump seals and will
void the warranty. If the pump was running while dry, stop
the engine and allow it to cool thoroughly before filling the
chamber with water.
Pour water into the outlet located on top of the pump housing.
(A) Make sure to fill the pump body to the very top of the outlet
with water. Connect the outlet hose to the outlet. (See section
Connecting the Outlet Hose) Make sure hose connection is secure.
As the engine starts up, this will start the draw of liquid into the
pump. Located within the pump assembly is the one-way valve. As
you prime the pump housing this one-way flap valve shuts off the
opening to the suction hose. The priming process is only required
when the pump housing is not full of water.
A
B
NOTICE
Ensure the drain plug is secure before pump priming and
operation. (B) If not secure the pump will not hold water and
prime correctly.
Connecting the Inlet Hose
NOTICE
Both the intake and outlet ports are 1 in. (2.5 cm). Please
insure the connectors to the suction and discharge hose are
1 in. (2.5 cm) threaded.
1. Attach the water filter shield to the water filter. (A)
2. Connect them to the intake hose with a hose clamp. (B)
3. Tighten the screw on the hose clamp to secure. Do not
overtighten.
AB
4. Slide the pipe joint (C) over the straight outlet joint (D) and
then place the rubber gasket (E) into the base of the pipe
joint.
C
D
E
5. Connect the intake hose to the straight outlet joint with a
hose clamp. (F)
6. Tighten the screw on the hose clamp to secure. Do not
overtighten.
C
7. Connect the straight outlet joint to the pump. (G)
8. Hand tighten the joint to the pump. Do not over tighten.
C

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT OPERATION
14
NOTICE
The once connected to the pump, there may be some
threading left after hand tightening. This is normal. DO NOT
overtighten the pipe joint with any wrench, tool, or otherwise.
NOTICE
Telfon tape or other sealers are not needed for a water tight
connection. The rubber gasket should help to make the
connection more water tight.
Connecting the Outlet Hose
NOTICE
Both the intake and outlet ports are 1 in. (2.5 cm). Please
insure the connectors to the suction and discharge hose are
1 in. (2.5 cm) threaded.
1. Slide the pipe joint (A) over the 90º outlet joint (B) and then
place the rubber gasket (C) into the base of the pipe joint.
A
B
C
2. Connect the outlet hose to the 90º outlet joint with a hose
clamp. (D)
3. Tighten the screw on the hose clamp to secure. Do not
overtighten.
D
4. Prime the pump. (E) See priming the pump section
E
5. Connect the 90º outlet joint to the pump. (G)
6. Hand tighten the joint to the pump. Do not over tighten.
G
NOTICE
The once connected to the pump, there may be some
threading left after hand tightening. This is normal. DO NOT
overtighten the pipe joint with any wrench, tool, or otherwise.
NOTICE
Telfon tape or other sealers are not needed for a water tight
connection. The rubber gasket should help to make the
connection more water tight.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT OPERATION
15
Starting the Engine
WARNING
Before attempting to start the engine, the oil level must be
checked and engine oil added if needed.
1. Make certain the water pump is on a flat, level surface.
2. Check engine oil level. Add oil if needed. (see add engine oil
section)
3. Check fuel level. Add fuel if needed. (see add fuel section)
4. Move the choke lever to the “CHOKE” position.
5. Move the throttle level to the idle position.
6. Push and release the primer bulb 5 times to prime the
carburetor. You should see the bulb start to fill up with fuel
and fuel traveling through the fuel line.
7. Pull the starter cord slowly until resistance is felt and then
pull rapidly.
8. As engine warms up, move the choke lever to “RUN”.
9. Move the throttle lever to the desired RPM position.
NOTICE
Pump performance can be adjusted using the throttle. To
decrease pump output, slide the throttle down. To increase it,
slide the throttle up.
WARNING
DO NOT remove the drain plug while the water pump is on and
running
Loss of pressure and suction will occur. Injury may also occur.
NOTICE
Keep choke lever in “CHOKE” position for 2 pulls of the recoil
starter. After 2 pulls, move choke lever to the “RUN” position
for up to the next 3 pulls of the recoil starter. Too much choke
leads to spark plug fouling/engine flooding due to the lack of
incoming air. This will cause the engine not to start.
Stopping the Engine
There is a stop engine button located next to the air filter cover,
above the throttle level. Simply press the button and the unit
should turn off.
NOTICE
If the engine will not be used for a period of two (2) weeks or
longer, please see the Storage section for proper engine and
fuel storage.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT MAINTENANCE
16
MAINTENANCE
Make certain that the water pump is kept clean and stored
properly. Only operate the unit on a flat, level surface in a clean,
dry operating environment. DO NOT expose the unit to extreme
conditions, excessive dust, dirt, moisture or corrosive vapors.
WARNING
Never operate a damaged or defective water pump.
WARNING
Improper maintenance will void your warranty.
NOTICE
For Emission control devices and systems, read and
understand your responsibilities for service as stated in the
Emission Control Warranty Statement of this manual.
The owner/operator is responsible for all periodic maintenance.
Complete all scheduled maintenance in a timely manner.
Correct any issue before operating the water pump.
For service or parts assistance, contact our
Technical Support Team at 1-877-338-0999.
Cleaning the Water pump
CAUTION
DO NOT spray water pump directly with water.
Water may cause unsuspected damage.
1. Use a damp cloth to clean exterior surfaces of the water
pump.
2. Use a soft bristle brush to remove dirt and oil.
3. Use an air compressor (25 PSI) to clear dirt and debris from
the water pump.
4. Inspect all air vents and cooling slots to ensure that they are
clean and unobstructed.
To prevent accidental starting, remove and ground the spark plug
wire before performing any service.
Changing the Engine Oil
Change oil when the engine is warm. Refer to the oil specification
to select the proper grade for your operating environment.
1. Remove oil fill cap/dipstick to drain and add oil.
2. Tip the pump on its side to drain all oil into an approved
container.
3. Add oil according to Add Engine Oil in Assembly section.
DO NOT OVERFILL. Oil not included for routine maintenance.
4. Replace the oil fill cap/dipstick.
5. Dispose of used oil at an approved waste management
facility.
NOTICE
Once oil has been added, a visual check should show oil
about 1-2 threads from running out of the fill hole. If using the
dipstick to check oil level, DO NOT screw in the dipstick while
checking.
Cleaning and Adjusting the Spark Plug(s)
1. Locate and remove the spark plug cable from the top of the
spark plug.
2. Use the spark plug tool that is in the tool kit to remove the
spark plug.
3. Inspect the electrode on the plug. It must be clean and not
worn to produce the spark required for ignition.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT MAINTENANCE
17
4. Make certain the spark plug gap is 0.6 - 0.8 mm
(0.024 - 0.031 in.).
SPARK PLUG GAP
5. Refer to spark plug section on specifications page.
6. Carefully thread the plug into the engine for replacement
spark plug. (if needed)
7. Use the spark plug tool to firmly re-install the plug.
8. Re-attach the spark plug wire to the plug.
Cleaning the Air Filter
1. Unscrew the air filter wing nut to remove the air filter cover.
2. Remove the foam element.
3. Wash in liquid detergent and water. Squeeze thoroughly dry in
a clean cloth.
4. Saturate in clean engine oil.
5. Squeeze in a clean, absorbent cloth to remove all excess oil.
6. Reassemble the element.
7. Reattach the air filter cover and tighten wing nut.
Adjusting the Governor
WARNING
Tampering with the factory set governor will void your
warranty.
The air-fuel mixture is not adjustable. Tampering with the governor
can damage your water pump and your electrical devices and
will void your warranty. Contact our Technical Support Team at
1-877-338-0999 for all other service and/or adjustment needs.
Maintenance Schedule
Follow the service intervals indicated in the following maintenance
schedule.
Service your water pump more frequently when operating in
adverse conditions.
Contact our Technical Support Team at 1-877-338-0999 to locate
the nearest CPE certified service dealer for your water pump or
engine maintenance needs.
EVERY 8 HOURS OR PRIOR TO EACH USE
Check oil level
Clean around air intake and muffler
FIRST 5 HOURS (BREAK IN)
Change oil
EVERY 50 HOURS OR ANNUALLY
Clean air filter
Change oil if operating under heavy load or in hot
environments
EVERY 100 HOURS OR ANNUALLY
Change oil
Clean/adjust spark plug
Clean spark arrestor
Clean fuel valve filter*
EVERY 250 HOURS
Clean combustion chamber*
Check/adjust valve clearance*
EVERY 3 YEARS
Replace fuel line*
* To be performed by knowledgeable, experienced owners or CPE certified service
centers.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT STORAGE
18
STORAGE
For longer term storage, please follow these guidelines.
Engine Storage
1. Allow the engine to cool completely before storage.
2. Clean the engine according to the instructions in the
Maintenance section.
3. Drain all fuel completely from the fuel line and carburetor to
prevent gum from forming.
4. Add a fuel stabilizer into the fuel tank.
5. Change the oil.
6. Remove the spark plug and pour about ½ ounce (14.8 ml) of
oil into the cylinder. Crank the engine slowly to distribute the
oil and lubricate the cylinder.
7. Reattach the spark plug.
Water pump Storage
1. Allow the water pump to cool completely before storage.
2. Turn off the fuel supply at the fuel valve.
3. Drain the pump chamber thoroughly.
4. Clean the water pump according to the instructions in the
Maintenance section.
5. Once the pump is dry, spray WD-40 or similar product into
the pump housing through all ports and drainage hole.
6. Store in a clean, dry place out of direct sunlight.
DANGER
Engine exhaust contains odorless and colorless carbon
monoxide gas.
To avoid accidental or unintended ignition of your product
during periods of storage, the following precautions should be
followed:
–When storing the unit for short or extended periods of time
make sure that the spark plug wire is disconnected.
Winter Storage
Protect your water pump parts from freezing.
1. Apply all storage instructions from previous sections.
2. Make sure water pump hose is free of all water before storing
for winter.
3. In order to prevent the pump from freezing you will need to
insert RV antifreeze.
4. You will need approximately 6 ounces (177.4 ml) of RV
Antifreeze, a funnel, and approximately 12 in. (30.5 cm) of
garden hose or equivalent. See diagram below.
5. Pour the antifreeze into the funnel, then pull on the engine
recoil starter to create suction in the pump housing. Pull the
recoil several times until antifreeze comes out of the pump
outlet. DO NOT START THE ENGINE WHEN DO THIS. Only pull
the recoil cord if the fuel valve and engine switch are in the
OFF position.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT SPECIFICATIONS
19
SPECIFICATIONS
Water pump Specifications
Model ....................................................... 100166
Inlet Diameter ........................................ 1 in. (2.5 cm)
Outlet Diameter ...................................... 1 in. (2.5 cm)
Total Head ............................................. 95 ft. (29 m)
Suction Head ............................................16 ft. (5 m)
Max Delivery Volume....................... 30 gal/min (114 L/min)
Weight ..............................................20.9 lb. (9.5 kg)
Length ............................................12.8 in. (32.4 cm)
Width .............................................. 9.7 in. (24.6 cm)
Height.............................................13.6 in. (35.4 cm)
Engine Specifications
Model ............................................................S35
Displacement.................................................. 31 cc
Type................................................... 4-Stroke OHV
Spark Plug
OEM Type ....................................................CMR5H
Gap ................................. 0.024-0.031 in. (0.6-0.8 mm)
Valve
Intake Clearance .............0.002 – 0.003 in. (0.05 – 0.08 mm)
Exhaust Clearance ........... 0.003 – 0.005 in. (0.08 – 0.12 mm)
NOTICE
A technical bulletin regarding valve adjustment procedures is
available at www.championpowerequipment.com.
Oil Specifications
DO NOT OVERFILL.
Type............................................*See following chart
Capacity .......................................... 2.4 fl. oz. (70 ml)
-20 020 40 60
Ambient temperature
Recommended Engine Oil Type
80 100 120
-28.9
°F
°C -17.8 -6.7 4.4 15.6 26.7 37. 8 48.9
10W-30
5W-30 Full Synthetic
10W-405W-30
NOTICE
Temperature will affect engine oil and engine performance.
Change the type of engine oil used based on temperature
shown in the “Recommended Engine Oil Type” table.
Fuel Specifications
Use unleaded gasoline with a minimum octane rating of 87 and
an ethanol content of 10% or less by volume. DO NOT USE E15 or
E85. DO NOT OVERFILL.
Gasoline Capacity ............................. 0.145 gal. (550 mL)
Temperature Specifications
Starting Temperature Range (°F/°C) ........... 5 to 104/-15 to 40
NOTICE
An important message about temperature: Your product
is designed and rated for continuous operation at ambient
temperatures up to 104°F (40°C). When needed, it may be
operated at temperatures ranging from 5°F (-15°C) to 122°F
(50°C) for short periods of time. If exposed to temperatures
outside this range during storage, it should be brought back
within this range before operation. In any event, the product
must always be operated outdoors, in a well-ventilated area
and away from doors, windows and vents.

100166 - 1 IN. (2.5 CM) WATER PUMP WITH HOSE KIT TROUBLESHOOTING
20
TROUBLESHOOTING
Problem Cause Solution
Water pump will not start No fuel Add fuel
Faulty spark plug Replace spark plug
Water pump will not start; Water pump
starts but runs roughly
Low oil level Fill crankcase to the proper level; place water
pump on a flat, level surface
Choke in the wrong position Adjust choke
Spark plug wire loose Attach wire to spark plug
Water pump shuts down during
operation
Out of fuel Fill fuel tank
Low oil level Fill crankcase to the proper level; place water
pump on a flat, level surface
Water pump overheating or performing
poorly
Strainer or hose clogged Remove debris from strainer or hose
Pump not primed Re-prime pump
Suction hose out of water Place suction hose under the surface of the water
Head limit exceeded Relocate pump so suction head is less than
discharge head (maximum 98 feet)
Air leak Tighten connectors and clamps or replace seal
packing, and or apply more telfon tape as needed.
For other issues and technical support:
Technical Support Team
Toll Free 1-877-338-0999
[e-mail]