PROPOINT 8628265 User manual

V 1.0 8628265
420CC OHV GAS ENGINE
WITH ELECTRIC START
USER MANUAL
Please read and understand all instructions before use. Retain this
manual for future reference.

8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
SPECIFICATIONS
Engine Displacement
420cc
Start Type
Pull / Electric 12V DC
Torque
20.65 ft-lb
Shaft Diameter
1 in.
Shaft Rotation (From PTO Shaft Side)
Counterclockwise
Shaft End Tapped
(Diameter (in.) / Threads Per Inch)
3/8-24 UNF
Number of Cylinders
1
Shaft Length
3.5 in.
Cylinder Bore
3.54 in.
Stroke
2.6 in.
Compression Ratio
8.8:1
Cooling System
Air
Fuel Tank
Metal
Fuel Type
Gasoline
Fuel Tank Capacity
6.9 quarts (6.5 litres)
Fuel Filter
Yes
Oil Capacity
1.2 quarts (1.1 litres)
Lubrication System
Splash
Oil API Service Classification
SJ or Newer
Low Oil Alert
No
Low Oil Shutdown
Yes
Governor System
Mechanical
Ignition System
Transistorized Magneto
Max. Speed
3,600 RPM
Muffler Included
Yes
420CC OHV GAS ENGINE
WITH ELECTRIC START
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
Spark Plug
Gap
0.028 ~ 0.031 in. (0.7 ~
0.8 mm)
Torque
18 ~ 22 N-m
Air Cleaner Type
Paper/ Foam
Intake Valve Clearance
0.08 ~ 0.12 mm (0.0031 ~
0.0047 in.)
Exhaust Valve Clearance
0.13 ~ 0.17 mm (0.0051 ~
0.0067 in.)
INTRODUCTION
The 420cc OHV Gas Engine is suitable to power pressure
washers, tillers, water pumps, cultivators, log splitters, go karts,
generators, forestry equipment, plus lawn and garden equipment.
The engine has a cast iron cylinder sleeve to reduce wear and
extend the engine’s life. The overhead valve design improves
fuel economy. The engine has a 12V DC electric ignition in
addition to a recoil pull start. A low oil shutdown feature will
protect the engine.
SAFETY
WARNING! Read and understand all instructions before using this
engine. The operator must follow basic precautions to reduce the
risk of personal injury and/or damage to the equipment.
Keep this manual for safety warnings, precautions, operating or
inspection and maintenance instructions.
HAZARD DEFINITIONS
Please familiarize yourself with the hazard notices found in this
manual. A notice is an alert that there is a possibility of property
damage, injury or death if certain instructions are not followed.
DANGER! This notice indicates an immediate and specific
hazard that
will
result in
severe personal injury or
death
if the proper precautions are not taken.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
WARNING! This notice indicates a specific hazard or unsafe
practice that
could
result in
severe personal injury
or death
if the proper precautions are not taken.
CAUTION! This notice indicates a potentially hazardous
situation that may result in minor or moderate injury
if proper practices are not taken.
NOTICE! This notice indicates that a specific hazard or unsafe
practice will result in equipment or property
damage, but not personal injury.
WORK AREA
1. Operate in a safe work environment. Keep your work area
clean, well lit and free of distractions.
2. Keep anyone not wearing the appropriate safety equipment
away from the work area.
3. Do not install or use the engine in the presence of flammable
gases, dust or liquids.
PERSONAL SAFETY
WARNING! Wear personal protective equipment approved by
the Canadian Standards Association (CSA) or American
National Standards Institute (ANSI).
PERSONAL PROTECTIVE EQUIPMENT
1. Always wear impact safety goggles that provide front and
side protection for the eyes. Eye protection equipment should
comply with CSA Z94.3-07 or ANSI Z87.1 standards based on
the type of work performed.
2. Wear gloves that provide protection based on the work
materials or to reduce the effects of tool vibration.
2.1 Do not wear gloves when operating the engine, as the
engine can snag the material and pull the hand into its
moving parts.
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
3. Wear protective clothing designed for the work environment
and engine.
4. Non-skid footwear is recommended to maintain footing and
balance in the work environment.
5. Wear steel toe footwear or steel toe caps to prevent a foot
injury from falling objects.
PERSONAL PRECAUTIONS
Control any tool, personal movement and the work environment
to avoid personal injury or damage to the engine.
1. Do not operate any tool when tired or under the influence of
drugs, alcohol or medications.
2. Avoid wearing clothes or jewelry that can become entangled
with the moving parts of a tool or the engine. Keep long hair
covered or bound.
3. Do not overreach when operating a tool. Proper footing and
balance enables better control in unexpected situations.
SPECIFIC SAFETY PRECAUTIONS
WARNING! DO NOT let comfort or familiarity with engine
(gained from repeated use) replace strict adherence to safety
rules. If you use this engine unsafely or incorrectly, you can
suffer serious personal injury.
1. Use the correct engine for the job. This engine was designed
for a specific function. Do not use it for an unintended
purpose.
2. All users must understand the operation of all controls and
learn how to stop the engine quickly in case of emergency.
3. The engine and exhaust become very hot during operation.
Severe thermal burns can occur on contact, especially with
the muffler.
3.1 Keep the engine at least 3 feet (1 meter) away from
buildings and other equipment during operation.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
3.2 Remove accumulated debris from the muffler and
cylinder area. Combustible debris, such as leaves, grass,
brush, etc. can catch fire if they come in contact with a
hot engine.
3.3 Do not place anything on the engine while it is running.
3.4 Allow the muffler, engine cylinder and fins to cool before
touching.
4. The manufacturer of the equipment on which this engine is
installed specifies the top speed at which the engine will
operate. DO NOT exceed this speed.
CARBON MONOXIDE POISONING
WARNING! Never operate a gas engine indoors or in a confined
space as the exhaust contains carbon monoxide gas. Inhalation
of carbon monoxide gas can lead to illness or death. The area
must be well ventilated. Opening windows and doors is not
enough to ventilate an area.
Carbon monoxide is a colourless and odourless gas that is
difficult to detect. Carbon monoxide poisoning results from
inhalation of the gas and may be lethal if left untreated. Evacuate
all people to an area with clean air and seek immediate medical
attention for any person experiencing the following symptoms:
• Headache
• Confusion
• Shortness of breath
• Weakness
• Chest Pain
• Dizziness
• Blurred vision
• Nausea and vomiting
• Unconsciousness
UNPACKING
WARNING! Do not operate the engine if any part is missing.
Replace the missing part before operating. Failure to do so
could result in a malfunction and personal injury.
Remove the parts and accessories from the packaging and inspect
for damage. Make sure that all items in the parts list are included.
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
Contents:
• Gas Engine
IDENTIFICATION KEY
When this manual refers to a letter, it corresponds to the
components shown in Figure 1. Compare the illustration with your
engine to familiarize yourself with the location of various features
and controls.
ASpark Plug
BMuffler
CAir Cleaner
D Recoil Starter
EEngine Switch
FCircuit Protector
GStarting Handle
HFuel Tank
IFuel Filler Cap
JOil Drain Plug
KStarting Motor
LDipstick / Oil Fill
MFuel Valve
NChoke Lever
OThrottle Lever
ASSEMBLY & INSTALLATION
Letter references in parenthesis (A) refer to the included
Identification Key. Dashed numbers in parenthesis (Fig. 1-1) refer
to specific point of an illustration or image.
1. The engine comes assembled.
2. The engine is not shipped with oil. Starting the engine
without oil will damage the engine beyond repair. Add oil
per the maintenance instructions.
3. Replace oil cap for shipping with the vented/breather oil cap.
Fig. 1
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
4. Check that the filter is in place. See Maintenance – Service the
Air Filter
CONNECT THE BATTERY
NOTICE! Do not reverse the polarity when connecting the
battery as as this will short circuit the battery charging system
or damage the equipment.
The engine has an electric start option that requires a 12 volt
battery (sold-separately). Use a 12V DC battery with a rating of at
least 18 ampere-hours with the engine.
The engine has two battery cables with copper lugs. The polarity
of each cable is displayed on a rubber cover where they connect
on either side of the starter motor.
1. Remove the wing nuts from the battery’s positive (+) and
negative terminals (-).
2. Slide the positive battery cable lug onto the positive terminal.
Coat the cable end with grease and reattach the wing nut.
Tighten hand-tight.
3. Slide the negative battery cable lug onto the negative
terminal. Coat the cable end with grease and reattach the
wing nut. Tighten hand-tight.
4. Secure the battery so it won’t move while the engine is in use.
OPERATION
PRE-OPERATION CHECKS
NOTICE! The engine is not shipped with oil. Before starting the
engine, add oil according to the instructions in this manual. Starting
the engine without oil will damage the engine beyond repair.
Check the engine’s condition before operating to maximize the
user’s safety and the service life of the engine. Ensure that the
engine is level and the switch is in the OFF position before
beginning the pre-operation checks.
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
BEFORE STARTING THE ENGINE
WARNING! Do not start or run engine in an enclosed area, even
if the doors or windows are open. Engine exhaust contains
carbon monoxide (see Carbon Monoxide Precautions).
1. Make sure spark plug (A), muffler (B), fuel cap (I) and air
cleaner (C) are in place and secured.
2. Ensure the spark plug lead is securely connected to the spark
plug, otherwise unintentional sparking can result, causing a
fire or electric shock.
3. Check the air filter. A dirty air filter will reduce engine
performance.
4. Check that all protective covers and guards are in place.
5. Check that all nuts, bolts and screws are tight.
6. Check the fuel level.
7. Check the engine oil level. Running the engine without
enough oil can damage the engine.
8. Look around and underneath the engine for signs of oil or
gasoline leaks.
8.1 Do not start the engine until any spilled fuel has
evaporated.
9. Remove any excessive dirt or debris, especially around the
muffler (B) and recoil starter (D).
10. Look for signs of damage.
11. Check the equipment powered by this engine.
STARTING THE ENGINE
WARNING! Direct-coupled equipment components such as, but
not limited to, blades, impellers, pulleys, sprockets, etc., must
be securely attached before the engine is started to avoid injury
or damage.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
CAUTION! Failure to follow the steps below will result in rapid
retraction of the starter cord faster than the user can let go. This
will pull the user’s hand and arm toward the engine, possibly
resulting in an injury.
1. Move the fuel valve (M) to the ON position.
2. Move the choke lever (N) to the CLOSED position if the
engine is cold. The choke is unnecessary when restarting a
warm engine.
3. Move the throttle lever (O) away from MIN. position, about 1/3
of way toward the MAX. position.
4. Manual Start Method.
4.1 Turn the engine switch (E) to the ON position.
4.2 Pull the starter handle (G) lightly until you feel resistance,
then pull the starter handle briskly. The engine should
turn over and start running.
4.3 Do not allow the starter handle to snap back against the
engine. Instead, return the starter grip gently by hand.
5. Electric Start Method.
5.1 Attach the battery (see Assembly & Installation -
Connecting the Battery).
5.2 Turn the key to the start position and hold it there until
the engine starts. If engine fails to start within 5 seconds,
release the key and wait at least 10 seconds before
operating the starter again.
6. If the engine floods, set the choke to the OPEN/RUN
position, place the throttle in FAST and attempt to start the
engine again.
7. If the choke lever was moved to the CLOSED position to start
the engine, gradually move it to the OPEN position as the
engine warms up.
8. Adjust the throttle lever to reach the desired engine speed.
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
The engine may make a metallic rapping noise (spark knock,
ping) while running under a heavy load. This is normal. Replace
the fuel with premium quality gasoline if the metallic rapping
noise continues under normal load. Contact a qualified
mechanic if the pinging continues as this may indicate existing
engine damage.
STOPPING THE ENGINE
CAUTION! Do not choke carburetor to stop engine. In an
emergency turn the engine switch to the OFF position to stop
the engine.
Stop the engine by following this procedure:
1. Move the throttle lever (O) to the MIN. position.
2. Turn the engine switch (E) to the OFF position.
3. Turn the fuel valve (M) to the OFF position.
CARE & MAINTENANCE
WARNING! Always ensure that the engine is off before you
begin any maintenance or repairs. An active engine part can
cause a severe injury, amputation or death if a mishap occurs.
The following section includes a maintenance schedule, routine
inspection procedures and simple maintenance procedures
using basic hand tools. Service tasks that are more difficult or
require special tools are best handled by a technician or other
qualified mechanic.
1. Maintain the engine with care. A well-maintained engine is
more efficient and less likely to have problems.
2. Follow instructions for servicing.
3. Inspect the engine components periodically. Check fuel lines,
tank, cap and fittings frequently for cracks or leaks. Have
damaged or worn components repaired or replaced by an
authorized technician.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
4. Replacement parts must match the original. Use
manufacturer recommended parts when possible.
5. Disconnect the spark plug lead and keep it away from the
spark plug during maintenance and repairs.
5.1 Disconnect the negative battery lead, then the
positive lead.
6. Maintain the engine’s label and name plate. These carry
important information. If unreadable or missing, contact
Princess Auto Ltd. for replacements.
IMPORTANT! Only qualified service personnel should repair
the engine.
12 For technical questions call 1-800-665-8685

V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
MAINTENANCE SCHEDULE
This schedule applies to normal operating conditions. If you
operate your engine under severe conditions, such as sustained
high-load or high-temperature operation or use in unusually wet
or dusty conditions, consult a qualified technician for
recommendations applicable to your individual needs and use.
REGULAR SERVICE PERIOD*
Before Each Use/Daily
First Month or 20 Hours
Every 3 months or 50 Hours
Every 6 months or 100 Hours
Every Year or 300 Hours
Performed at every indicated
month or operating hour
interval, whichever comes first.
Engine Oil
Check
X
Change
X
X
Air Cleaner
Check
X
Clean
X **
Sediment Cup
Clean
X
Spark Plug
Clean /
Adjust
X
Replace
X
Idle Speed
Check /
Adjust X
Valve Clearance
Check /
Adjust X
Combustion
Chamber
Clean
After every 500 Hours
Fuel Tank and
Filter
Clean
X
Fuel Tube
Check
Every 2 years (replace if
necessary)
* For commercial use, log hours of operation to determine proper
maintenance intervals.
** Service more frequently when used in dusty areas.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
FUEL RECOMMENDATIONS
NOTICE! Do not use unapproved gasoline, such as E85. Do not mix
oil in gasoline or modify the engine to run on alternate fuels. This
can damage the engine components. To protect the fuel system
from gum formation, mix a fuel stabilizer into the fuel.
This engine is certified to operate on unleaded gasoline with a
minimum of 87 octane/87 AKI (91 RON). Use gasoline without
ethanol or similar alcohol based additives. Gasoline with up to
10% ethanol (gasohol) or up to 15% MTBE (methyl tertiary butyl
ether) may be used if required.
If the engine is routinely operated at altitudes over 5,000 ft (1,524
meters), it will be necessary to have a qualified technician modify
the engine for increased performance. Fuel should be a minimum
of 85 octane/85 AKI (91 RON) to prevent decreased performance.
The emissions control system for this engine is EM (Engine
Modifications).
1. Use only an approved fuel container for refueling the engine.
2. Store fuel out of direct sunlight in a cool and dry location.
3 Inspect container for fuel leaks. Replace any container
that leaks.
4. You may occasionally hear a light spark knock or pinging
(metallic rapping noise) while the engine is operating under
heavy loads. This is no cause for concern. If spark knock or
pinging occurs at a steady engine speed under normal load,
switch to a premium gasoline or change brands of gasoline. If
spark knock or pinging persists, see an authorized repair centre.
5. Never use stale or contaminated gasoline or an oil/gasoline
mixture designed for two-stroke motors.
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
HOW TO ADD FUEL
DANGER! Fuel is very flammable. Use extreme care when
handling or storing fuel. An ignition source contacting the
fumes or fuel may result in a fire or explosion and cause fatal or
serious injuries to you or a bystander.
1. Refuel outdoors or in a well-ventilated area and immediately
wipe up spills. Fuel can damage paint and plastic.
2. Stop the engine and position equipment on a level surface.
3. Let engine cool at least 2 minutes before removing the
fuel cap.
4. Clean the fuel cap (I) area of dirt and debris. Do not allow dirt
or water to enter the fuel tank.
5. Remove the fuel cap slowly to allow the pressure to equalize.
6. Check the fuel level.
7. Add fuel until it reaches the bottom of the metal collar
supporting the fuel strainer in the fuel tank (Fig. 2-1). Ta ke
care to not overfill the
tank. It may be necessary
to lower the fuel level
depending on operating
conditions.
8. Reinsert the fuel tank cap
and tighten.
9. Wipe up any spilled fuel
before starting the engine or allow to evaporate. Spilled fuel
is both a fire hazard and an environmental hazard. Dispose of
the fuel soaked rags in a proper hazardous waste container.
ENGINE OIL
NOTICE! Engine oil is a major factor affecting engine performance
and service life. Non-detergent and 2-stroke engine oils will
damage a 4-stroke engine and are not recommended.
2-1
Fig. 2
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
High-quality detergent engine oils are acceptable if the (API)
performance rating is SJ or higher. Always check the API service
label on the oil container for the performance rating.
1. Check the oil level before each use with a cool engine that is level.
2. Use 4-stroke motor oil that meets or exceeds the
requirements for API (American Petroleum Institute) service
classification SJ. Always check the API Service label on the oil
container to be sure it includes the letters SJ or SL.
3. Do not use special additives.
4. SAE 10W-30 is recommended for general, all-temperature
use. Other viscosities shown on the chart may be used when
the average temperature in
your area is within the
indicated range (Fig. 3).
5. Above 27 °C (80 °F), using
10W-30 oil may increase oil
consumption. Check the oil
level more often.
6. Below 4 °C (40 °F), using
SAE 30 oil will cause hard
starting.
HOW TO CHECK OIL
1. Level the engine or the equipment the engine is mounted on.
2. Clean the oil fill area of any dirt and debris to prevent
contamination that can damage the engine.
3. The engine has a dipstick that is either part of the oil fill plug
(L) or a separate component (see Parts Identification).
3.1 Remove the dipstick (L) and wipe with a clean cloth.
3.2 Reinsert the dipstick into the filler neck until it rests on
the opening’s rim. Do not screw the oil fill plug back into
the opening (Fig. 4).
Fig. 3
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
3.3 Remove the dipstick and check that the oil is between
the Full and Fill marks. Add or drain oil based on the
measurement.
3.4 Reinsert the dipstick and either press firmly to hold in
place or screw the oil fill cap hand tight.
HOW TO ADD OIL
IMPORTANT! Read the Engine Oil section before adding oil to
ensure that it is suitable for the engine.
1. Remove the oil filler cap (L) and place to one side.
2. Place a funnel into the oil fill neck. The funnel opening should
be wide enough to prevent the oil from collecting in the
funnel’s cone.
3. Pour oil into the funnel. Allow the oil to settle for one
minute and recheck the level. Repeat until the desired level
is reached.
4. Insert the oil filler cap and hand tighten.
5. Wipe up any spilled oil. Dispose of oil soaked rags in a proper
hazardous waste container.
HOW TO DRAIN OIL
WARNING! Do not tip the engine while draining. This can cause
fuel to leak into the oil compartment, creating a potential fire
hazard. If this is unavoidable, drain the fuel from the engine
before draining the oil.
Fig. 4
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
1. Remove the dipstick (L).
2. Place an approved container
below the oil drain plug
(Fig. 5).
3. Remove the oil drain plug
and allow oil to the drain into
the approved container.
4. Install oil drain plug and
tighten with a wrench.
IMPORTANT! Used oil must be
disposed of properly. Do not pour it on the ground, down a
drain or throw it in the trash. Take the oil to your local recycling
centre or a service station for reclamation.
CARBURETOR ADJUSTMENT
Never make adjustments to the carburetor. The carburetor was
set at the factory to operate efficiently under most conditions.
Only a qualified service technician should adjust the carburetor if
it is required.
MODIFYING THE CARBURETOR FOR HIGH ALTITUDES
At high altitude, the standard air-fuel mixture is too rich, causing
increased fuel consumption and decreased performance. A rich
mixture will also foul the spark plug and cause hard starting.
A qualified technician can improve high altitude performance
with certain modifications. Have your carburetor modified if the
engine will routinely be operated at altitudes above 5,000 ft
(1,524 m). Even with carburetor modification, engine power will
decrease about 3.5% for each 1,000 ft (305 m) increase in
altitude. The effect of altitude on engine power will be greater
than this is if no modification is made.
NOTICE! When the carburetor has been modified for high
altitude operation, the air fuel mixture will be too lean for low
altitude use. Operation at altitudes below 5,000 ft (1,524 m) may
Fig. 5
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V 1.0 420CC OHV GAS ENGINE WITH ELECTRIC START 8628265
cause the engine to overheat and result in serious engine
damage. When using this engine at low altitudes, have a qualified
technician return the carburetor to original factory specifications.
CLEANING THE SEDIMENT CUP
CAUTION! Wear latex or rubber gloves when working on the
sediment cup. The cup may contain fuel that will cause skin
irritation. Prolonged and repeated exposure to fuel on skin may
result in dry, cracked skin.
1. Switch the fuel valve to the OFF position.
2. Remove the fuel sediment cup, screw and o-ring.
3. Clean the sediment cup with a non-flammable solvent or
detergent and rinse. Allow to dry.
3.1 Some chemicals will damage the o-ring material. Check
for compatibility or replace the o-ring.
4. Reassemble the sediment cup and o-ring.
5. Switch the fuel valve to the ON position and check for leaks.
Replace the o-ring if the installation is correct, but fuel still
leaks from the cup.
EMISSION CONTROL SYSTEM INFORMATION
The combustion process produces carbon monoxide,
hydrocarbons and nitrogen oxides. Controlling these emissions is
important for personal and environmental health.
The following instructions must be followed in order to keep the
emissions from your engine within Canadian emission standards.
1. Do not remove or alter any part of the intake, fuel or
exhaust system.
2. Do not alter or bypass the governor linkage or a speed-
adjusting mechanism that force the engine to operate outside
its design specifications.
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8628265 420CC OHV GAS ENGINE WITH ELECTRIC START V 1.0
PROBLEMS THAT MAY AFFECT EMISSIONS
Have your engine inspected and repaired by a qualified technician
if you are aware of any of the following symptoms.
1. Hard starting or stalling after starting.
2. Rough idle.
3. Misfiring or backfiring under load.
4. Afterburning (backfiring).
5. Black exhaust smoke or high fuel consumption.
REPLACEMENT PARTS
The emission control systems on the engine is designed, built and
certified to conform to Canadian emission regulations. Genuine
parts are recommended when servicing the engine. Genuine
replacement parts are manufactured to the same standards as
the original parts. Using replacement parts that are not of the
original design and quality may impair the effectiveness of the
emission control system.
It is the responsibility of the aftermarket part manufacturer to
certify that the part will not result in a failure of the engine to
comply with emission regulations.
SERVICE THE AIR FILTER
NOTICE! Operating the engine with a damaged or missing air
filter will allow dust and debris to enter the engine, causing
rapid engine wear or scoring on the engine pistons. Always
ensure the air filter is in place.
A dirty air filter will restrict airflow to the carburetor, reducing the
engine’s performance. Clean the air filter more frequently than
specified in the maintenance schedule if the engine is used in
dusty areas.
1. Remove the air cleaner’s outside cover (Fig. 6). Do not allow
dirt and debris from to fall into the air cleaner assembly.
2. Remove the air filter from the air filter housing.
20 For technical questions call 1-800-665-8685