TecumsehPower
TM
Operator’s Manual
LH318EA (HM80-90)
LH358EA(HM100)
OH195EA/OH195EP
OH318EA
Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled
Table of Contents
VIII. Maintenance ...................................................................................18
California & US EPA Emission Control Warranty Statement...........36
Emission Control System Warranty ................................................37
Register Your Tecumseh Engine
Maintenance Tips
Parts Look-Up System
Great Tecumseh Apparel
Nearest Authorized Tecumseh Servicing Dealer Location
181-1269-14
(English) 1/01/08
B. Avoid Gasoline Fires
I. General Safety Precautions
! WARNING
Gasoline (fuel) vapors are highly
flammable and can explode. Fuel vapors
can spread and be ignited by a spark or
flame many feet away from engine. To
prevent injury or death from fuel fires,
follow these instructions:
Read equipment manufacturer’s manual and this
material thoroughly before using this engine. Failure to
do so can result in serious injury or death. Call Tecumseh
Power Company at 1-800-558-5402 or visit
• NEVER store engine with fuel in fuel tank inside a
building with potential sources of ignition such as
hot water and space heaters, clothes dryers,
electric motors, etc.
A. Avoid Carbon Monoxide Poisoning
All engine exhaust
contains carbon
monoxide, a deadly gas.
Breathing carbon
• NEVER add fuel with engine running.
• NEVER start or operate the engine with the fuel fill
cap removed.
monoxide can cause
headaches, dizziness,
drowsiness, nausea,
confusion and eventually
death.
• Allow engine to cool before refueling.
• NEVER fill fuel tank indoors or in an enclosed area
such as a garage, barn shed, etc. Fill fuel tank
outdoors in a well-ventilated area.
Carbon monoxide is a colorless, odorless, tasteless gas
which may be present even if you do not see or smell any
engine exhaust. Deadly levels of carbon monoxide can
collect rapidly and you can quickly be overcome and
unable to save yourself. Also, deadly levels of carbon
monoxide can linger for hours or days in enclosed or
poorly-ventilated areas. If you experience any symptoms of
carbon monoxide poisoning, leave the area immediately,
get fresh air, and SEEK MEDICAL TREATMENT.
• DO NOT smoke while refueling tank.
• Use only an approved red GASOLINE container to
store and dispense fuel. Tecumseh recommends
purchasing gasoline in containers with a capacity of
2.5 gallons or less. Small containers are easier to
handle and help eliminate spillage during refueling.
• DO NOT pour fuel from engine or siphon fuel by
To prevent serious injury or death from carbon monoxide:
• NEVER run engine indoors. Even if you try to
ventilate engine exhaust with fans or open windows
and doors, carbon monoxide can rapidly reach
dangerous levels.
• NEVER run engine in poorly-ventilated or partially
enclosed areas such as barns, garages,
basements, carports, under dwellings, or in pits.
• NEVER run engine outdoors where engine exhaust
can be drawn into a building through openings such
as windows and doors.
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Power Sport Recreational Application Operator’s Manual
Page 1
C. Adult Supervision of Operation, Refueling
and Maintenance
The manufacturer of the recreational vehicle may provide
information about who is allowed to operate or ride in the
vehicle (see equipment manufacturer’s manual). Not
everyone who is allowed to operate or ride in the vehicle is
capable of safely and responsibly operating, maintaining
and/or fueling this Tecumseh Power Sport Engine.
Tecumseh recommends the following:
• An adult should fuel this engine. NEVER allow
children to refuel this engine. See "D. Filling Fuel
Figure 1. DO NOT use Without Engine Shaft Guard
• An adult should perform maintenance on this
page 18. Only allow children to perform
maintenance if an adult has determined they are
experienced and capable of such operation.
1
2
Only allow children to start the engine if an adult has
determined they are experienced and capable of
such operation.
To avoid unsupervised operation of the recreational
vehicle, especially by children, NEVER leave the engine
unattended when it is running.
P
O
ST
1. Muffler Guard
2. Flywheel Guard
D. Stay Away from Rotating Parts
NEVER operate the engine with an
unguarded engine shaft. See Figure 1.
Figure 2. Typical Engine Guard Locations
The equipment manufacturer attaches a
sprocket and chain or pulley and belt to
the engine shaft. If these parts are not
properly guarded, or if you are not sure
whether they are properly guarded, DO
NOT use your recreational vehicle;
contact the equipment manufacturer.
Hands, feet, hair, jewelry, clothing, etc.
can become entangled in rotating parts,
leading to serious injury or death. To
avoid serious injury or death, be sure the flywheel guard is
in place. See Figure 2.
F. Avoid Burns and Fire from Hot Surfaces
The muffler and other engine parts become extremely hot
during operation and remain hot after the engine has
stopped.
• To avoid severe burns on
contact, NEVER operate
the engine without the
muffler guard in place, see
Figure 2 and avoid hot
areas of the engine.
• To reduce the risk of fire
keep all materials that can
E. Do Not Modify Engine
burn, including grass and leaves, away from muffler
and rest of engine. DO NOT operate, idle or park
the recreational vehicle in long dry grass or other
dry ground cover.
To avoid serious injury or death, DO NOT modify engine in
any way. Tampering with the governor setting can lead to a
runaway vehicle and cause the engine to operate at unsafe
speeds. NEVER tamper with factory setting of engine
governor.
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Power Sport Recreational Application Operator’s Manual
181-1269-14
G. Avoid Accidental Starts
To prevent accidental starting when working on equipment
always:
• Disconnect spark plug wire and keep it away from
spark plug. See Figure 3.
• Keep the disconnected spark plug wire
securely away from metal parts where arcing
could occur.
• Attach the spark plug wire to the grounding
post, if provided. See Figure 4.
• Disconnect battery at negative terminal first, if
engine is equipped with an electric starter.
• Turn off all engine switches.
• Remove ignition key, if provided.
Figure 3. Disconnecting/Connecting Spark Plug
H. Use Hearing Protection
Engine noise may cause hearing damage. Always wear
hearing protection when operating a recreational vehicle
engine.
Figure 4. Spark Plug Grounding Post
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Power Sport Recreational Application Operator’s Manual
Page 3
II. How to Get Service
For engine adjustments, repairs or warranty service not
covered in this manual, contact your nearest Authorized
Tecumseh Servicing Dealer. Find them on our website at
Company at 1-800-558-5402.
2083
Register Your Tecumseh Engine
Maintenance Tips
Parts Look-Up System
Great Tecumseh Apparel
Nearest Authorized Tecumseh Servicing Dealer Location
ENGINE
MODEL:
A. Engine Identification Decal
SPEC:
D.O.M.
A sample decal located on your engine indicates your
engine’s model number, specification and the date of
manufacture (D.O.M.). Please look at the decal on your
engine and fill in this information in the spaces provided for
Figure 5. Engine Identification Label
The Engine Identification Decal includes engine life
specifications for the emissions-related useful life period of
your engine. This period relates to the emission
compliance life as certified by EPA and/or CARB. To find
the life period specification for your engine, please look on
your decal and find the letter enclosed by quotation marks
between the words MODERATE and LIFE PERIOD. Match
one of the following letters with the letter printed on your
decal. For example, OH195EA/OH195EP models are
designated as “C”125 hours, “B” 250 hours and “A” 500
hours. LH318EA (HM80-90), LH358EA (HM100) and
OH318EA models are designated as “C”250 hours, “B” 500
hours and ”A” 1000 hours.
TECHNICIAN'S HANDBOOK
OVERHEAD VALVE
4 -CYCLE
ENGINES
B. Tecumseh Technician’s Handbooks
If you have a general understanding of internal combustion
engines and wish to repair and service your engine and/or
engine emission control systems yourself, a Technician’s
Handbook is available from your Authorized Tecumseh
repairs and adjustments not covered within this Operator’s
Manual, and it is intended for individuals who have had
adequate training, experience and who practice proper tool
usage. Service procedures should be clearly understood
and practiced when servicing Tecumseh Power Sport
Engines. Order as part no. 695244A for
TECHNICIAN'S HANDBOOK
3 TO 11 HP
4 - CYCLE
L- HEAD
ENGINES
OH195EA/OH195EP and OH318EA models. Order as part
no. 692509 for LH318EA (HM80-90), LH358EA (HM100)
models.
Figure 6. Technician Handbooks
Tecumseh manufactures and is responsible only for the
engine used on this power equipment. If repair or service is
needed for anything other than the engine, contact the
service source recommended by the equipment
manufacturer.
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Power Sport Recreational Application Operator’s Manual
181-1269-14
III. Oil and Fuel Specifications
Table 1. Recommended Engine Oil
A. Oil
Tecumseh Recommended Oil Usage
To operate engine you need to use a clean, high quality,
detergent oil. For recommended engine oil, See Table 1.
Straight Grade
Tecumseh Part No.
730225A or SAE 30
NOTES
Multi Grade
Tecumseh Part No.
Be sure oil container is marked A.P.I. Service “SL/SJ”.
730226A or SAE 5W30 or SAE 10
°
°
Using multigrade oil above 32 F (0 C) will increase oil
consumption. SAE10W40 is not recommended.
Synthetic
Tecumseh Part No.
730263 or SAE 0W30
O
O
O
O
O
O
100 F
O
O
Oil sump capacities vary with each model. Tecumseh
special-formulated oils are available at your Authorized
-20 F
0 F
40 F
60 F
20 F
32 F
80 F
O
O
O
O
O
O
O
O
-30 C
-20 C
-10 C
0 C
10 C
20 C
30 C
40 C
B. Fuel
Table 2. Oil Sump Capacities
Use unleaded regular, unleaded premium or reformulated
automotive fuel only. You may use gasoline containing the
following components identified. See Table 3.
Engine Model
Units
• DO NOT use leaded fuel.
Ounces U.S.
Pints
Liters
.78
Application
• Fuel must be fresh and clean. NEVER use fuel left
over from last season or stored for long periods.
LH318EA (HM80-90)
LH358EA (HM100)
26 oz.
1-5/8
• NEVER mix oil with fuel.
• DO NOT use fuel containing Methanol (Wood
Alcohol).
OH195EA/OH195EP
OH318EA
21 oz.
26 oz.
1-1/4
1-5/8
.62
.78
The use of alternative fuels such as E85
CAUTION
or E20 are not recommended for use in
Tecumseh engines. Alternative fuels with high alcohol
content can cause hard starting, poor engine performance,
and may cause internal engine damage.
Table 3. Recommended Fuel Components
Fuel Component
Percentage
NOTE
Damage and/or performance problems that will occur from
use of fuels, other than those listed in the Operator’s
Manuals will not be considered warranty.
Ethanol
10%
10%
15%
15%
Grain Alcohol (“Gasohol”)
MTBE (Methyl Tertiary Butyl Ether)
ETBE (Ethyl Tertiary Butyl Ether)
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Power Sport Recreational Application Operator’s Manual
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IV. Before Starting Your Engine
A. Engine Pre-Ride Checklist
To avoid serious injury or death,
WARNING
always complete both the engine and
equipment manufacturer’s pre-ride checklist before using
the engine. This engine should NEVER be used if you
identify a problem with any of the steps listed below.
Be sure the engine is turned off for steps 1 thru 4:
1. Fuel cap—Check that the anti-splash fuel fill cap is
securely in place.
Figure 7. Incorrect Usage Without Engine Shaft Guard
2. Guards—Check that all of the guards are securely in
place. NEVER operate the vehicle if you think there
may be a guard missing. Check with equipment manu-
1
2
3. Debris—Check that engine, controls and guards are
free from debris, snow or ice. For debris removal areas,
4. Throttle—With the engine off, check that the gas pedal
operates smoothly and returns to an idle position when
released.
P
O
ST
An adult should start the engine. Only
WARNING
allow children to start engine if an
adult has determined they are experienced and capable of
such operation.
1. Muffler Guard
2. Flywheel Guard
5. Idle speed—Be sure that operator is in place with the
brake engaged before starting the engine. Start the
engine and slowly release the brake. Check that the
vehicle does not move when the engine is idling. If it
does move at idle, stop the vehicle and shut off the
engine. The vehicle requires service and should not be
operated.
Figure 8. Engine Guard Locations
5
3
6. Engine stop switches—Check that the operator knows
where all engine stop switches are located. Check that
all engine stop switches immediately stop the engine.
1
3
2
For questions about the pre-ride checklist for this engine,
contact your nearest Authorized Tecumseh Servicing
Dealer. Find them on our website at
Company at 1-800-558-5402.
4
1
1
1. Levers and Linkage
2. Cooling Fins
3. Air Cleaner Cover
4. Flywheel Guard
5. Muffler Guard
Figure 9. Debris Removal Areas
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Power Sport Recreational Application Operator’s Manual
181-1269-14
B. Checking Oil Level
To avoid engine damage, it is important to:
• Check oil level before each use and every 5
operating hours.
Fill between
“Full” and
“ADD” marks
FULL
• Keep oil level between “FULL” and “ADD” marks on
dipstick or to point of overflow on engines without
dipstick. See Figure 10.
OK
• Be sure oil fill dipstick/plug is tightened securely.
ADD
NOTES
Do not overfill engine with oil. Doing so may result in
equipment malfunction or damage.
Do not allow oil level to fall below the “ADD” mark on
dipstick. Doing so may result in equipment malfunction or
damage.
Figure 10. Engine Oil Level
Contact your Authorized Tecumseh Servicing Dealer for
Tecumseh Oil.
I. Oil Fill Dipstick
1. Be sure engine is upright and level.
NOTE
Some Power Sport Engines are equipped with an oil fill
dipstick. See Figure 11.
2. Unscrew oil fill dipstick from oil filler tube and wipe
clean.
3. Screw oil fill dipstick back into oil filler tube. Tighten
securely.
4. Unscrew and remove oil fill dipstick from oil filler tube.
Note oil level. If oil reading on dipstick is below “ADD”
mark, slowly add oil to reach “FULL” level. See Figure
Figure 11. Possible Oil Fill Dipstick Location
5. Screw oil fill dipstick back into oil filler tube. Tighten
securely.
6. Wipe away any spilled oil.
II. Oil Fill Cap Without Dipstick (Oil fill Plug)
If your engine has an oil fill dipstick see "I. Oil Fill Dipstick"
1. Be sure engine is upright and level.
NOTE
All models in this manual may be equipped with optional oil
3. Unscrew oil fill plug.
Figure 12. Possible Oil Fill Plug Location(s)
4. Add oil to overflow point, making sure to avoid spilling.
5. Screw oil fill plug back into oil fill hole. Tighten securely.
6. Wipe away any spilled oil.
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Power Sport Recreational Application Operator’s Manual
Page 7
C. Engine Stop Switch
Power Sport Engines are equipped with an Engine Stop
Switch. This rocker switch is used to shut off the ignition
that supplies the spark plug with power. Pressing the
switch to the “OFF” position will turn the engine off when it
is running. This switch must be in the “ON” position or the
engine will not start. See Figure 13.
1
2
D. Filling Fuel Tank
3
An adult should fuel this engine.
WARNING
1. ON Position
2. OFF Position
3. Switch
NEVER allow children to refuel this
engine. Gasoline (fuel) vapors are highly flammable and
can explode. Fuel vapors can spread and be ignited by a
spark or flame many feet away from engine. To prevent
injury or death from fuel fires, follow these instructions:
Figure 13. Engine Stop Switch
1. Stop engine and allow it to cool before refueling.
2. Be sure engine is outdoors and in a well-ventilated
area.
3. Clean area around fuel fill cap and remove anti-splash
Figure 14. Possible Fuel Fill Cap Location(s)
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Power Sport Recreational Application Operator’s Manual
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4. Using an approved red GASOLINE container, add fuel
slowly, being careful to avoid spilling. DO NOT overfill
fuel tank. Leave space in the tank to allow fuel to
expand without overflowing. See "B. Fuel" instructions
5. Replace anti-splash fuel fill cap securely and wipe up
spilled fuel before starting engine. If fuel is spilled DO
NOT start engine. Move machine away from area of
spillage. Avoid creating any source of ignition until fuel
vapors are gone.
NOTES
Remove and discard white plastic fuel tank insert, if
provided. See Figure 15.
Figure 15. Fuel Cap Insert Disposal Symbol
Replace a damaged or missing gas cap only with a genuine
Tecumseh replacement anti-splash fuel fill cap. Failure to do
so may VOID YOUR WARRANTY. See Figure 16.
Front View
E. Optional Fuel Valve
Some engines are equipped with an optional fuel valve.
1. Turn fuel valve counterclockwise to “OPEN” position.
2. Turn fuel valve clockwise to “OFF” position
NOTE
Bottom View
Always be sure fuel valve is in the “OFF” position after each
use. See Figure 17.
Figure 16. Possible Anti-Splash Fuel Fill Cap(s)
3
2
3
1
1. Fuel Valve in “OPEN” Position Shown
2. Fuel Valve in “OFF” Position Shown
3. Fuel Tank
Figure 17. Optional Fuel Valve
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