TECUMSEH
TH098SA/TH139SNTH139SP(HSK600-870)
Operator'sManual
Two-Cycle Engine • HorizontalNertical Crankshaf_ • Air-Cooled
IMPORTANT NOTICE! Safety Definitions ........................................ ii
I. General Safety Precautions ............................................................. 1
II. Howto Get Service .......................................................................... 3
Ill. Oil and Fuel Specifications ............................................................... 3
IV. Before Starting Your Engine ............................................................. 4
V. Starting Your Engine ........................................................................ 5
VI. Stopping Your Engine and Short-Term Storage ............................... 9
VII. Maintenance ................................................................................... 11
VIII. Transporting Your Engine ............................................................... 13
IX. Storing Your Engine ....................................................................... 13
X. Preventing Forest, Brush and Grass Fires ..................................... 15
XI. Maintenance Intervals .................................................................... 16
California & US EPA Emission Control Warranty Statement .......... 20
Emission Control System Warranty ............................................... 21
XlI. Warranty Information ...................................................................... 22
181-807-14
(English) 05/01/04
IMPORTANT NOTICE!
Safety Definitions
Statements inthis manual preceded bythe followingwords
and graphics are of specialsignificance:
Or
WARNING indicatesa potentiallyhazardous situation
which if notavoided, could resultin death or seriousinjury.
NOTE
Refers to important information and is placed in italic type.
It is recommendedthat you take specialnoticeof all items
discussedon the nexttwo pages and wear the apprepdate
safety equipment.
Before operatingthisengine # isyourresponsibility to read
this Operator's Manual. Followthese basic rulesfor your
personalsafety:
• Keep this manual handy at all times for future
reference.
• Read itcarefully and familiarize yourselfwith
operating, maintenance, componentsand safety
instructions.
Notice Regarding Emissions
NOTE
Engines which are certifiedto comply with California and
U.S. EPA emission regulations for SORE (Small Off Road
Equipment), are certified to operate on regular unleaded
gasoline, and may include the following emission control
systems: (EM) Engine Modification and (TWC) Three-Way
Catalyst (if so equipped).
Tecumseh Contact Information
Forengine adjustments,repairsor warranty service not
covered in this manual, contact your nearestAuthorized
Tecumseh ServicingDealer. Findthem on ourwebsite at
www.TecumsahPower.com or call Tecumseh Power
Company at 1-800-558-5402.
_:)Copydght 2004
TecumsehPower Company
All Rights Reserved
Page ii Two-Cycle Engine • HodzontaYVertical Crankshaft • Air-Cooled 181-807-14
I, General Safety Precautions • NEVER fillfuel tank indoors.Fillfuel tank outdoors
in a well-ventilated area.
Read equipmentmanufacturer's manual andthis
materialthoroughly before usingthis engine. Failure to
do socanresultinseriousinjuryordeath. CallTecumseh
Power Company at 1-800-558-5402 or visit
www.TecumsehPower.com ifyou have anyquestions.
A. Avoid Carbon Monoxide Poisoning
Allengine exhaust contains
carbon monoxide, a deadly
gas. Breathingcarbon
monoxidecan cause
headaches, dizziness,
drowsiness,nausea,confusion
and eventuallydeath.
Carbon monoxideis a colorless,odorless, tasteless gas
whichmay be present even if you do not see or smell any
engine exhaust. Deadly levels of carbon monoxidecan
collectrapidlyand you can quickly beovercome 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 symptomsof
carbon monoxide poisoning, leave the area immediately,
get fresh air, and SEEK MEDICAL TREATMENT.
To prevent serious injuryor death from carbon monoxide:
NEVER runengine indoors.Even ifyou tryto
ventilateengine exhaustwithfansor open windows
and doors,carbon monoxidecan rapidlyreach
dangerous levels.
NEVER runengine in poorly-ventilated or partially
enclosed areas suchas barns, garages,
basements, carports,under dwellings,or in pits.
NEVER runengineoutdoorswhere engine exhaust
can bedrawnintoa buildingthroughopeningssuch
as windows and doors.
B. Avoid Gasoline Fires
Gasoline (fuel) vapors are highlyflammable
and can explode. Fuel vaporscan spread
and be ignitedby a spark or flame manyfeet
away from engine.To preventinjuryordeath
from fuel fires,follow these instructions:
• NEVER storeengine withfuel infuel
tank inside a building with potential
sources of ignition such as hot water and space
heaters, clothesdryers, electric motors,etc.
NEVER removefuel cap oradd fuel when engine is
running.
NEVER startoroperate the engine withfuel fill cap
removed.
• Allow engine to coolbefore refueling.
C=
• DO NOT smoke whilerefueling tank.
Use onlyan approved red GASOLINE container to
storeand dispense fuel. Tecumsehrecommends
purchasinggasolineincontainerswitha capacityof
2.5 gallonsor less. Small containersare easier to
handle and help eliminatespillageduring refueling.
• DO NOT pour fuel from engine or siphonfuel by
mouth. To emptyfuel tank see "1.Draining Fuel"
instructions on page 14.
Adult Supervision of Operation, Refueling
and Maintenance
The manufacturerof the applicationmay provide
informationaboutwho isallowedto use this engine (see
equipment manufacturer's manual). Not everyone who is
allowed to use this engine is capable of safely and
responsibly operating, maintaining and/or fueling it.
Tecumseh recommends the following:
• An adult shouldfuel this engine. NEVER allow
childrento refuelthis engine.See "B. Filling Fuel
Tank"instructionson page 4.
• An adult shouldperformmaintenance on this
engine. See "VII. Maintenance"instructionson
page 11. Only allow childrento perform
maintenance if an adulthas determinedthey are
experienced and capable ofsuch operation.
• An adultshouldstart the engine. See "G Avoid
AccidentalStarts" instructionson page 2. Only allow
children to start the engine if an adult has
determined they are experienced and capable of
such operation.
To avoid unsupervisedoperationofthe engine, especially
by children,NEVER leave it unattendedwhen it isrunning.
D. Stay Away from Rotating Parts
NEVER operatethe engine with an unguardedengine
shaft.
The equipment manufacturer may attach
a sprocketand chain or pulley and belt to
the engine shaft. If these parts are not
properlyguarded, or ifyou are not sure
whetherthey are preperlyguarded, DO
NOT use yourengine; contactthe
equipmentmanufacturer. Hands, feet,
hair,jewelry, clothing,etc. can become
entangled inrotatingparts, leadingto
sedousinjuryor death. To avoid serious
injuryor death, be sure the flywheel
guard is in place.See Figure1,
on page 2.
181-807-14 Two-Cycle Engine • HorizontalA/ertical Crankshaft •Air-Cooled Page 1
E. Do Not Modify Engine
To avoid serious injury or death, DO NOT modify engine in
any way. Tampering with the governor setting can lead to a
runaway engine and cause it to operate at unsafe speeds.
NEVER tamper with factory setting of engine governor.
Use of thisengine on fun-carts, go-kartsor mini-bikes
could result in serious injury or death. Tecumseh
manufactures the Power Sport line of engines for use in
such applications. Consult your local Authorized
Tecumseh Servicing Dealer, call 1-800-558-5402, or go
to www.TecumsehPower.com for additional information.
F. Avoid Burns and Fire from Hot Surfaces
The mufflerand other engine parts become
extremely hotduring operationand remain
hotafter the engine has stopped.
To avoidsevere bums on contact,
NEVER operate the engine without
the mufflerguard inplace and avoid
hot areas of the engine.
m
To reduce the riskof fire keep all materialsthat can
burn, includinggrassand leaves, away from muffler
and rest of engine. DO NOT operate, idle or park
the engine application in long dry grass or other dry
ground cover.
G, Avoid Accidental Starts
To prevent accidental starting when working on equipment
always:
• Disconnectsparkplug wire and keep itaway from
spark plug. See Figures 2 and 3.
• Keep the disconnected spark plug wire
securelyaway from metal parts where arcing
couldoccur.
• Attach the sparkplug wire to the grounding
post, ifprovided.
• Disconnect batteryat negativeterminal first, if
engine isequipped with an electricstarter.
• Turn offall engine switches.
• Remove ignitionkey, ifprovided.
H. Use Hearing Protection
Engine noise may cause hearing damage. Always wear
hearing protection when operating an engine.
Figure 1. DO NOT Use Without Flywheel Guard
4=+
Figure 2. Disconnecting/Connecting Spark Plug
Figure 3. Typical Spark Plug Connection
Page 2 Two-Cycle Engine • Horizontal/Vertical Crankshaft •Air-Cooled 181-807-14
II. How to Get Service
For engine adjustments,repairs orwarranty service not
covered in this manual, contactyournearest Authorized
Tecumseh ServicingDealer. Findthem on ourwebsite at
www.TecumsehPower.com or call Tecumseh Power
Company at 1-800-558-5402.
A. Engine Identification Decal
A sample engine identification decal (See Figure4.)
indicates the engine's model number, specificationof
engine and the date of manufacture (D.O.M.). Please look
at the decal on yourengine and fill inthis informationinthe
spaces providedfor future reference.
The Engine Identification Decal includesengine life
specificationsfor the emissions-relatedusefullife periodof
yourengine.This periodrelates totheemissioncompliance
life as certified byEPA and/orCARB. To findthe life period
specificationfor your engine, please lookon yourengine's
decal and findthe letter enclosed by quotationmarks
between thewordsMODERATE and LIFE PERIOD. Match
one ofthe following letters with the letter printedon your
decal. Forexample, TH (HSK) modelsare designatedas
"C" 50 hours,=B" 125 hours,=A"300 hours.
B. Tecumseh Technician's Handbooks
If you have a general understanding of internal combustion
engines and wish to repair and service yourengine and/or
engine emission controlsystems yourself,a Technician's
Handbook is available from yourAuthorized Tecumseh
ServicingDealer. See Figure 5. This handbookcovers
repairs and adjustments not coveredwithinthis Operator's
Manual, and it isintendedfor individualswho have had
adequate training,experience and who practicepropertool
usage. Service proceduresshouldbe clearly understood
and practicedwhen servicingTecumseh Engines. Orderas
part no. 694988 for TH (HSK) Models.
Tecumseh manufactures and is responsibleonlyfor the
engine used onthis power equipment.If repair orservice is
needed for anythingotherthan the engine, contact the
service sourcerecommended bythe equipment
manufacturer.
II1.Oil and Fuel Specifications
A. Oil
To operate yourengine you need to use a clean, high
quality,2 Cycle oilmixed with fuel at a ratioof50:1. For
recommendedmixtureratioof fuel and oil, see Tables 1
and 2. See "A.Mixing Fuel and Oil"instructionson page 4.
NOTES
Use of NMMA, TC-W/I or TC-W3, JASO FB or FASO FC
classifiedoilis recommended.
A 32:1 fuel mix ratio is recommended ifNMMA oil is not
available. See Table2. See '_A.MixingFuel and Oil"
instructionson page 4.
Tecumseh syntheticand special formulatedoilsare
available at yourAuthodzed TecumsehServicing Deale_
Contact yourAuthorized TecumsehServicing Dealer for
TecumsehOiL
ENGINE
MODEL:
SPEC:
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martu_ and the equipment 0_r$
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--- IMPC]RTAN T ENGINE I _--
TECUMSEHP p
T}_5_NGINE _ EpA
PJEL_ 01_ SAE 30
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_m:_: _ 04_15AAO001
I111111111111111111111111111
D.O.M.:
Figure 4. Engine Identification Label
TECUMSEII
11ECNNICI_CS I,;AND_OOK
HSK_)BJW_04L_
TVSffV_J4O
2_:yCJ.E ENGiI_E S
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tomb
Figure 5. Technician's Handbook
Table 1. Fuel Mix Chart - Mixture Ratio 50:1
U.S. S.I. Metric
Gas Oil Petrol Oil
1 Gal. 2-1/2 oz. 4 Liters 80 ml
2 Gal. 5 oz. 8 Liters 160 ml
5 Gal. 13 oz. 20 Liters 400 ml
Table 2. Fuel Mix Chart - Mixture Ratio 32:1
U.S. S.I. Metric
Gas Oil Petrol Oil
1 Gal. 4 oz. 4 Liters 125 ml
2 Gal. 8 oz. 8 Liters 250 ml
5 Gal. 20 oz. 20 Liters 625 ml
181-807-14 Two-Cycle Engine • Horizontal/Vertical Crankshaft •Air-Cooled Page 3
B. Fuel
Use unleaded regular,unleaded premium or reformulated
automotivefuel only. You may use gasolinecontainingthe
following componentsidentifiedinTable 3.
• DO NOT use leaded fuel.
• Fuel must be fresh and clean. NEVER use fuel lefl
over from last season or storedfor long periods.
• DO NOT use fuel containing Methanol (Wood
Alcohol).
IV. Before Starting Your Engine
A. Mixing Fuel and Oil
_ _ NEVER store enginewithfuel infuel
.%
tank insidea buildingwith potential
sources ofignitionsuch as hot water and space heaters,
clothesdryers, electdc motors, etc.
NOTES
DO NOT mix fuel and oil directly in fuel tank.
Use of NMMA, TC-W]! or TC-W3, JASO FB or JASO FC
classified oil is recommended.
A 32:1 fuel mix ratio is recommended if NMMA oilis not
available. See Table 2.
Tecumseh synthetic and special formulated oils are
available at your Authorized Tecumseh Servicing Dealer.
Contact your Authodzed Tecumseh Servicing Dealer for
Tecumseh Oil.
1. Be sure containerisoutdoorsand in a well-ventilated
2•
area.
Fill approved clean red GASOLINE container with 1/4
of recommended fuel amount. See Table 3.
3. Add requiredamount of recommended oilto fuel• See
Tables 1 and 2.
4. Screw cap onto container.
5. Shake container vigorously•
6. Unscrew cap from container.
7. Fillcontainerwith remainder ofrecommendedfuel. See
Tables 1 and 2.
8. Wipe away any spilledfuel or oil.
B. Filling Fuel Tank
An adult shouldfuel this engine•
NEVER allow childrento refuelthis
engine• Gasoline (fuel) vapors are highlyflammable and
can explode• Fuel vapors can spread and be ignitedbya
spark or flame manyfeet away from engine•To prevent
injuryor death from fuel fires, followthese instructions:
1. Stop engine and allow itto cool before refueling.
2. Be sure engine isoutdoorsand in a well-ventilated
area.
3. Clean area around fuel fill cap and remove fuel fill cap.
4. Remove and discard white plastic fuel tank insert, ifso
equipped. See Figure 6.
Table 3. Recommended Fuel
Fuel Component Percentage
Ethanol 10%
Grain Alcohol ("Gasohol") 10%
MTBE (MethylTertiary ButylEther) 15%
ETBE (EthylTertiary ButylEther) 15%
Figure 6. Fuel Cap Insert Symbol
Front View
Bottom View
Figure 7. Possible Anti-Splash Fuel Fill Cap(s)
NOTE
For recommendedmixture ratios offuel and oil, see Tables
1 and 2 on page 3. See "111.Oil and Fuel Specifications"
instructions on page 3.
5.
Usingan approvedred GASOLINE container,add fuel
slowly,being carefulto avoid spilling•DO NOT overfill
fuel tank• Leave space in thetank to allowfuel to
expandwithout overflowing.
6.
Replace anti-splashfuel fill cap securelyand wipe up
spilled fuel before starting engine. If fuel is spilledDO
NOT start engine. Move machine away from area of
spillage. Avoid creating any source of ignition until fuel
vaporsare gone.
NOTE
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 7.
Page 4 Two-Cycle Engine • HodzontaWertical Crankshaft •Air-Cooled 181-807-14
C. Check the Following Equipment
NOTE
Be sure equipment is in neutral before attempting to start
(see equipment manufacturer's instructions).
1. Be sure ignitionswitchon engine or equipmentis in
"ON', =RUN" or "START" position,if present(see
equipment manufacturer'sinstructions).
2.
Be sure air vent on fuel cap, if present (see equipment
manufacturer's instructions)isfree of debris. Be sure
airvent screw,ifpresent(see equipmentmanufacturer's
instructions)on fuel cap isopen.
V. Starting Your Engine
, An adultshouldstartthe engine.
Only allowchildrento startengine if
an adult hasdeterminedthey are experienced and capable
of such operation.
If you are unable to startthis engine
afterfollowing instructionsinthis
manual, contact yourAuthorized Tecumseh Servicing
Dealer. To avoid serious bum injuriesor damage to your
engine, DO NOT attemptto startor troubleshootthis
engine inany otherway. Forexample:
• DO NOT use startingfluid.
• DO NOT spray flammablevaporsintocarburetoror
ontoair cleaner.
• DO NOT put flammableliquids intocarburetor or
ontoair cleaner.
• DO NOT operate engine or pull on starterropewith
sparkplug removed.Fuelcansprayfrom sparkplug
holeand ignite.
NOTE
ff engine is remotely controlled, (see equipment
manufacturer's instructions)your equipmentmay have one
or more of the following engine symbols. See Figure 8.
This sectioncontains starting instructionsfor several
differenttypes ofengines. In ordertolocate theinstructions
that apply toyour engine, firstdetermine what typeof
starteryou have. Ifyou have an electricstarter see
"A. Engines with Electric Starters" instrections on page 6. If
you have a manual recoilstarter see "B.Engines with
Recoil Starters" instructionson page 8.
I""
STOP SLOW RUN FAST CHOKE PRIMER
Figure 8. Typical Engine Symbols
181-807-14 Two-Cycle Engine • HortzontaYVertical Crankshaft •Air-Cooled Page 5
A. Engines with Electric Starters
__ Some electric startersare equipped
_i_ with a 120VA.C. Thrae-wira power
cord and plug designed to operate on a 120V A.C.
household current. It must be properly grounded at all
times to avoid the possibility of injury or death from
electdcal shock.
a. Determine if your housewiring has a GroundFault
Interrupted (GEl.) Three-Wire Grounded System; If
you are not sure ask a Licensed Electrician.
b. If your housewiringdoes not have a G.EI.
Interrupted Three-Wire Grounded System, DO NOT
USE THIS ELECTRIC STARTER UNDER ANY
CONDITION.
c. If your house wiring is groundedand a G.F.I.Three-
Prong Wall Receptacle is not available at the
location where your starter will be used, one must be
installed by a Licensed Electrician BEFORE USING
THE ELECTRIC STARTER.
;, Some electdc startersare equipped
__ with a 220VA.C. Three-wire power
cord and adaptor designed to operate on a 220V A.C.
household current. It must be properly earthed at all times
to avoid the possibility of injury or death from electrical
shock.
a. Determine if yourhousewiringhas a Residential
Current Device (R.C.D.) and a Three-Wire Earthed
System; If you are notsure ask a Licensed
Electrician.
b. If your house widng does not have a R.C.D.Three-
Wire Earthed System, DO NOT USE THIS
ELECTRIC STARTER UNDER ANY CONDITION.
c. If your house widng is earthed and a R.C.D. Three-
Prong Wall Receptacle is not available at the
location where your starter will be used, one must be
installed by a Licensed Electrician BEFORE USING
THE ELECTRIC STARTER.
1. To avoidcarbon monoxide poisoning, make sure
engine is outdoorsin a well-ventilated area.
NOTES
ff your engine is equipped with a 12V battery-opereted
electdcstarter,proceed to step 4.
When connecting power cord, always connect power cord
to switchbox on engine first;then into outlet. See Figure 9.
For European 220V A.C. Applications use an appropdate
grounded extension lead available locally.
2. Connect power cord to switchbox on engine. See
Figure 9.
3. Plug end of power cord intooutlet.
5
__ 120V A.C.
4
1
2 3 5
1. Power Cord to Outlet
2. Switch Box
3. Starter Button
4. Schuko Plug
5. Power Cord to Switch Box on Engine
Figure 9. Electrical Applications
Page 6 Two-Cycle Engine • HodzontalA/edical Crankshaft • Air-Cooled 181-807-14
4. Move Choke Control to =FULL° position (see equip-
ment manufacturer'sinstructions).See Figure 10.
5. Use equipmentaccordingto instructionslistedin the
table and notes below. See Table 4. See Figure 11.
Table 4. Priming Methods
TH(HSK)
Above 32°F (0°C) No primingrequired.
0°F to 32°F May requirepushingprimer bulb
(-18°C to O°C) firmlywith yourthumb 3 times.
Below0°F (-18°C) May requirepushingprimer bulb
firmlywith yourthumb 5 times.
NOTES
DO NO T useprtmer to restart a warm engine after a short
shutdown.Doing so will flood the engine and may resultin
equipment malfunction.
DO NOT operate an electric starterform.re than 5 seconds
each attempt.
6. Push starter button or tum ignitionswitchkey (see
equipmentmanufacturer's instructions)to startengine.
NOTE
ff engine fails to start after3 attempts repeat steps 5 thru 6.
7. When engine starts:
a. Release starter button or ignition switch key.
b. Move Choke Control to "1/2 CHOKE" position until
engine runs smoothly.
c. Next, move Choke Control to =NOCHOKE" position.
See Figure 10.
NOTES
If engine starts but falters when choke is moved to =NO
CHOKE" position:
8.
9.
a. Momentarily move Choke Control back to =FULL
CHOKE" position.
b. Next, move Choke Control to "1/2 CHOKE" position
until engine runs smoothly.
c. Finally, move Choke Control to "NO CHOKE"
position. See Figure 10.
If engine dies after Choke Control is moved to =NO
CHOKE" positionrepeat steps 5 thru 7 to restart
engine.
If engine fires but does not continueto run, move
Choke Control to "NO CHOKE" position and start
engine.
10. Ifengine fails tostart after 3 attemptsin the
"NO CHOKE" position,move Choke Control to
"FULL CHOKE" positionand startengine.
1. No Choke
2. 1/2 Choke
3. Full Choke
Figure 10. Choke Control Positions
3
Figure 11. Primer Bulb
NOTE
When disconnecting power cord, always disconnect power
cord from outlet first; then disconnect switch box on engine.
See Figure 9.
11. Disconnectpower cordfrom outlet.See Figure 9.
12. Disconnectswitchbox on engine. See Figure9.
13. Ifengine does not startafterfollowing steps1 thru 11,
contact your Authorized Tecumseh Servicing Dealer.
14. DO NOT attempt to start or troubleshoot this engine in
any other way.
181-807-14 Two-Cycle Engine • Horizontal/Vertical Crankshaft • Air-Cooled Page 7
B. Engines with Recoil Starters
Ifyou have an electricstarter see
"A, Engineswith Electdc Starters"instructionson page 6,
1. To avoid carbon monoxidepoisoning, make sure
engine isoutdoorsin a well-ventilated area.
2. Move Choke Controlto =FULL"position(see equip-
mentmanufacturer's instructions).See Figure 13.
3. Use equipmentaccordingto instructionslistedin the
table and notes below. See Table 5. See Figure 11.
Table 5. Priming Methods
TH(HSK)
Above 32°F (0°C)
0°F to 32°F
(-18°C to O°C)
Below O°F (-18°0)
No priming required.
May require pushingprimer bulb
firmly with your thumb 3 times.
May require pushing pdmer bulb
firmlywith your thumb 5 times.
NOTES
DO NOT usepalmer to restart a warm engine after a short
shutdown. Doing so will flood the engine and may result in
equipment malfunction.
DO NOT operate an electric staderfor more than 5 seconds
each attempt.
4. Operate equipmentcontrolto release engine brake or
clutch,ifpresent (see equipment manufacturer's
instructions).
When pullingstarter rope,the rope
can unexpectedlyjerk back toward
engine causing serious injury.To avoid this dsk, carefully
follow these instructions:
5. Grasp starter cordhandle. See Figure 12.
a. Pull ropeout slowlyuntilyou feel drag.
b. W_thoutallowingthe ropeto retract,continuepulling
ropewith one rapidfull arm stroke.
c. Retum rope slowlyto originalposition.
NOTES
Following the instructions listed in the stepsabove avoids
potential damage to the recoil mechanism.
ff recoil starter handle isfrozen and willnot operate engine,
proceed as follows:
a. Pull as much rope out ofstarter as possible.
b. Release starterhandle and let it snap back against
starter to break up ice; these two steps should only
be done when starter is frozen.
6. If engine fails to startafter 3 attempts, repeat steps 2
thru 5 and try again.
\
Figure 12. Starter Cord Handle
1
2
@
3
1. No Choke
2. 1/2 Choke
3. Full Choke
7.
Figure 13. Choke Control Positions
When engine starts:
a. Release starter buttonor ignitionswitchkey.
b. Move Choke Controlto=1/2CHOKE" positionuntil
engine runssmoothly.See Figure 13.
c. Next, moveChokeControlto=NOCHOKE" position.
See Figure 13.
NOTES
If engine starts but falters when choke is moved to =NO
CHOKE" position:
a. Momentadlymove Choke Control back to "FULL
CHOKE" position.
b. Next, move Choke Control to "1/2 CHOKE"position
c. If engine dies after Choke Control is moved to =NO
CHOKE" position repeat steps 5 thru 7 to restart
engine.
8. Ifengine fires but does not continueto run, move
Choke Controlto =NOCHOKE" positionand start
engine.
9. If engine fails to start after 3 attemptsinthe =NO
CHOKE" position, move Choke Control to =FULL
CHOKE" position and start engine.
10.
if engine does notstartafterfollowing steps 1 thru9,
contactyourAuthorized TecumsehServicingDealer.
DO NOT attemptto startor troubleshootthis engine in
any otherway.
Page 8 Two-Cycle Engine • Horizontal/Vertical Crankshaft °Air-Cooled 181-807-14
Vl. Stopping Your Engine and
Short-Term Storage
Stop engine accordingtoequipment manufacturer's
instructions.
_ _ To avoid unsupervised operation of
_ an engine, especially by children,
NEVER leave itunattendedwhen it isrunning.Always turn
offthe engine after use and remove ignitionkey, if
provided.
NEVER storethe engine withfuel in
the fuel tank inside a buildingwith
potentialsourcesof ignitionsuchas hot water and space
heaters, clothesdryers, electricmotors, etc.
A. Before Stopping
1. Runenginefora few minutestohelpdryoffany moisture
on engine
2. To helpavoid possiblefreeze-up ofstarter proceed as
follows:
I. Recoil Starters
With engine running,pull starter ropewith a rapid
continuousfullarm stroke 3 or4 times See Figure 14
NOTE
The unusual sound made by pulling staffer rope will not
harm engine or staffer.
II. Electric Starters
NO TES
When connecting power cord, always connectpower cord
to switch box on engine first; then into outlet. See Figure 15.
For European 220V A.C. Applications use an appropdate
grounded extension lead available locally
1. Connect power cordto switchbox on engine. See
Figure 15.
2. Plugend of powercord intooutlet.
3. With engine running,pushstarter buttonand spin
starterfor several seconds.
NOTES
The unusual sound made by the spinning staffer will not
harm engine or startet:
When disconnecting power cord, always disconnect power
cord from outlet first; then disconnect switch box on engine.
See Figure 15.
4. Disconnect power cordfrom outlet. See Figure 15.
5. Disconnectswitch box on engine. See Figure 15.
Figure 14. Starter Cord Handle
5
2 3
A.C.
3
2
4
1
220V A.C.
1. Power Cord to Outlet
2. Switch Box
3. Starter Button
4. Schuko Plug
5. Power Cord to Switch Box on Engine
Figure 18. Electrical Applications
181-807-14 Two-Cycle Engine. Hot_zontal/Veffical Crankshaft •Air-Cooled Page 9
B. Stop Engine
1. Move equipment control, if present (see manufacturer's
instructions)engine controllever or ignitionswitchto
=STOP"or "OFF" position.
2. Remove ignitionkey, ifpresent (see manufacturer's
instructions).
NOTE
Removing key willreduce the possibility of unauthorized
staffing of the engine while equipment is not in use.
_ NEVER store the engine with fuel in
_ the fuel tank insidea building with
potentialsources ofignitionsuch as hotwater and space
heaters,clothesdryers, electricmotors,etc.
C. After Engine is Stopped
_? To prevent possible freeze-up of
engine controlsfollowinstructions
listedbelow.
1. Wipe all snow and moisturefrom enginearea ofcontrol
lever and choke.
2.
3.
Move equipmentcontrol, ifpresent (see manufacturer's
instructions)engine controllever or ignitionswitchback
and forth several times and leave controlin =STOP" or
"OFF" position.
Move engine choke back and forthseveral times and
leave inthe =Full_ position.See Figure 16.
2
1. No Choke
2. 1/2 Choke
3. Full Choke
3
Figure 16. Choke Control Positions
Page 10 Two-Cycle Engine. Honzontal/Vertical Crankshaft. Air-Cooled 181-807-14
VII. Maintenance
An adultshould perform
maintenance on this engine.
Only allow children to perform maintenance if an adult has
determined they are expedenced and capable of such
operation.
To prevent accidental startingwhen
workingon equipmentalways:
• Disconnect spark plug wire and keep itaway from
spark plug. See "G. Avoid Accidental Starts"
instructions on page 2. See Figures 17 and 18.
• Keep the disconnected sparkplug wire
securelyaway from metalpartswhere arcing
could occur.
• Attach the spark plug wire tothe grounding
post, if provided.
• Disconnectbattery at negative terminal first, if
engine isequippedwith an electdc starter.
• Turn off all engine switches.
• Remove ignition key, if provided.
NOTES
When disconnecting power cord, ifpresent (see equipment
manufacturer's instructions) always disconnect power cord
from outlet first; then disconnect switch box from engine.
See Figure 19.
When connecting power cord, always connect power cord
to switch box engine first; then into outlet. See Figure 19.
A. Remote Choke
See equipment manufacturer'sinstructionsand contactan
Authorized Tecumseh ServicingDealer.
B. Carburetor
If you think your carburetor needs adjusting,see the
nearest Authorized Tecumseh Servicing Dealer. Engine
performance should not be affected at altitudes up to 7,000
feet (2,134 meters). For operation at higher elevations,
contact an Authodzed Tecumseh Servicing Dealer.
C. Engine Speed
_ . _!_ To avoidserious injury or death, DO
NOT modify engine in any way.
Tampering withthe governor settingcan lead toa runaway
engine and cause itto operate at unsafe speeds. NEVER
tamper withfactory settingof engine governor.
Runningthe engine faster than the speed set at the factory
can be dangerous and willVOID THE ENGINE
WARRANTY.
+÷
Figure 17. Disconnecting/Connecting Spark Plug
Figure 18. Typical Spark Plug Connection
5
" 120V A.C.
3
4 2
1
A.C.
1. Power Cord to Outlet
2. Switch Box
3. Starter Button
4. Schuko Plug
5. Power Cord to Switch Box on Engine
181-807-14
Figure 19. Electrical Applications
Two-Cycle Engine • Horizontal/Vertical Crankshaft • Air-Cooled Page 11
D. Adjustments
Do not make any engine adjustments. Factory settingsare
satisfactoryfor mostconditions.If adjustmentsareneeded,
contactyourAuthodzed Tecumseh ServicingDealer.
E. Muffler and Cylinder Exhaust Ports
The mufflerand cylinderexhaust portsrequirecleaning
after every 75 to 100 hours ofoperation. Forthis
maintenance procedure it isrecommendedthat the engine
be taken to anAuthodzed Tecumseh ServicingDealer.
F. Spark Plug
Check sparkplug yeady or every 100 operating hours.
1. Clean area around spark plug,
2. Remove and inspectsparkplug.
3. Replace spark plugif porcelainiscracked or if
electrodesare:
• Pitted
• Burned
• Fouledwith deposits
4. Check electrode gap withwire feeler gaugeand set
gap to ,030 (0.76ram) ifnecessary.See Figure20,
5. Installspark plug and tightensecurely.
NOTE
A resistorsparkplug must be used forreplacement. Contact
your Authorized Tecumseh Servicing Dealer for a
Tecumseh Resistor Spark Plug.
G. Removing Snow from Engine
After each use remove snow from the followingareas:
• Fuel Fill Cap
• Recoil Starter Screen
• Control Lever
NOTE
See equipment manufacturer's instructions,(ifpresent) for
proper locationof fuel ill/cap and controlleveK
Removing snowwill ease operationof the recoilstarter
rope and reducethe risk ofwater contaminationwhen
openingfuel fillcap. See Figure21.
NOTE
For more information about recoilstarters see "B.Engines
with Recoil Starters" instructions on page 8.
2
3
-1
1..030 in. (0.76 mm) Gap
2. Electrodes
3. Porcelain
Figure 20. Resistor Spark Plug
Figure 21. Recoil Starter Debris Areas
Page 12 Two-Cycle Engine • HorizontaL/Vertical Crankshaft • Air-Cooled 181-807-14
VIII. Transporting Your Engine
NEVER transport this engine inside
another vehicle or in any enclosed
space if there is any gasoline in the tank. Fuel vapor or
spilled fuel may ignite.
If there is fuel in the fuel tank, close
the fuel shut off valve, if equipped,
and transport the engine in an open vehicle, such as an
open trailer or open bed of a pickup truck.
If you do not have an open vehicle and have to transport
the engine in a closedvehicle, followthese stepsfor
emptyingthe fuel tank before transporting:
1. Empty fuel tank by usinga commemiallyavailable suc-
tiondevice designed for usewith gasoline.
DO NOT pour fuel from engine or
siphonfuel by mouth.
2. Drain fuel intoan approved red GASOLINE container,
being careful to avoid spilling.
3. Run the engine untilremaining fuel is consumed.
NEVER leave the engine
unattended when itis running and
NEVER runengine inencfosedareas.
IX. Storing Your Engine
A. Short TermlSeasonal Storage
I. Clean Engine
Before servicingthe engine remove the blower housing,tn
addition,remove grass clippings,dirt and debrisfrom the
followingareas:
• Coolingfins
Air intake screen
Levers
Linkage
Guards
Carburetor
Head
Removing debris willfacilitate adequate cooling,correct
engine speed and reduce the risk of fire.
II. Fuel Storage
NEVER storeengine withfuel in fuel
tank inside a building with potential
sources of ignition such as hot water and space heaters,
clothes dryers, electdc motors, etc. Failure to do so may
result in an explosion and result in death or serious injury.
NOTES
If engine fuel storedin the gas tank and/or an approved gas
container is to be unused without gasoline stabilizerfor
more than 15-30 days, prepare itfor shortterm/seasenal
storage. See 'YV Fuel Treatment" instructionson page 14.
If engine fuel is to be storedfor more than one season,
without gasoline stabilizer,itwill gradually deteriorate. Also,
if it is stored in the engine's gas tank without gasoline
stabilizer itis likely that your carburetor will have gum
deposits,a clogged fuel system and will voidyour warranty.
Prepare the fuel for extended storage. See "B. Extended
Storage" instructions on page 14.
If you operate the engine during all 4 seasons,it is not
necessary to lubricate the cylinder bore.
181-807-14 Two-Cycle Engine. Horizontal/Vertical Crankshaft • Air-Cooled Page 13
III. FueISystem B. Extended Storage
To avoidstale gas and carburetorproblems,treat the fuel
system inthe followingmethod below:
NOTES
Tecumseh recommends using ULTRA-FRESH TM or Fuel
Saver Plus Gasoline Stabilizer plus Fuel System Cleaner as
an acceptable method of minimizing formation of fuel gum
deposits during storage. This product is available from your
Authorized Tecumseh Servicing Deale_
Always follow mixratio found on stabilizer container. Failure
todo so may result in equipment damage.
It is not necessary to drain stabilized gas from carburetor.
IV. Fuel Treatment
1. Add fuel stabilizeraccordingto manufacturer's
instructions.
2. Run engine at least 10 minutes afteraddingstabilizer
toallow itto reach carburetor.
reii
NEVER storethe engine with fuel in
the fuel tank insidea building with
potentialsources ofignitionsuch as hot water and space
heaters, clothesdryers, electricmotors,etc.
NOTE
Instead of using a fuelpreservative/stabilizer, you can
empty the fuel tank as described under "1.Draining Fuel"
instructions. See "B. Extended Storage" instructions.
I. Draining Fuel
NOTES
Clean debris from engine before draining fuel from
carburetor See "1.Clean Engine" instructions on page 13.
If you have prepared your fuel for shortterm storage it is not
necessary to drain fuel that contains stabilizerfrom your
carburetor. See "A. Short Term/Seasonal Storage"
instructions on page 13.
siphon fuel by mouth.
1.
To avoid severe injuryor death,
DO NOT pour fuel from engine or
2,
To prevent seriousinjuryfrom fuel fires,emptyfuel tank
by running engine until it stopsfrom lack offuel. DO
NOT attempt to pourfuel from engine.
Runthe engine while waitinguntilthe remainingfuel is
consumed.
_'_Y NEVER leave the engine
unattendedwhen it isrunningand
NEVER runengine inenclosed areas.
3. Begin servicingthe cylinder bore. See '11.Oil Cylinder
Bore" instructions on page 15.
Page 14 Two-Cycle Engine • Horizontal/Vertical Crankshaft • Air-Cooled 181-807-14
II. Oil Cylinder Bore
When lubricatingcylinder bore, fuel
may sprayfrom spark plug hole. To
prevent seriousinjuryfrom fuel fires, follow these
instructions:
1. Disconnectspark plugwire and keep it away from
spark plug. See "G. AvoidAccidental Starts"instruc-
tionson page 2. See Figures22 and 23.
• Keep the disconnected spark plug wire
securelyaway from metal parts where arcing
couldoccur.
• Attachthe spark plugwire to the grounding
post, if provided.
• Disconnectbattery at negative terminalfirst, if
engine is equipped with an electdc starter.
• Turn offall engine switches•
• Remove ignitionkey,ifprovided.
2. Remove spark plug.
3. Squirt 1oz. (30ml) of clean engine oilintospark plug
hole.
4. Cover spark plug holewith rag to prevent fuelfrom
sprayingfrom spark plug holewhen starterrope is
pulled.
NOTES
For engines equipped with recoil startersproceed to Step 5.
For engines equipped with electric starters proceed to Step
6.
5.
6.
7.
8.
Grasp starter cord handle and pull out slowlyusinga
full arm stroke.Repeat once. (Thiswilldistributeoil
throughout the cylindertoprevent corrosionduring
storage•)
Installspark plug•
Carefully disconnectspark plug wire from grounding
post, if provided.
Connect spark plug wire before attemptingto start
engine.
III. Battery
See equipmentmanufacturer'sinstructionsfor proper
battery storage, if present.
,F÷
Figure 22. Disconnecting/Connecting Spark Plug
Figure 23. Typical Spark Plug Connection
X. Preventing Forest, Brush and Grass
Fires
Local, state and federal laws may require useof a spark
arresterto preventfires. For example, it isa violationof
California PublicResources Code (section4442) to use or
operate engine on anyforest-covered, brush-ceveredor
unimprovedgrass-cevered landunlessengine is equipped
witha spark attester. Spark attester mustbe maintainedin
effectiveworkingorder byowner and/oroperator.
To determine ifyour engine has a spark arrester, locatethe
muffleron yourengine. Forexample, the mufflerdischarge
willhave a spark arrestercover that reads "Tecumseh
Screen Type 36085".
If yourengine does not have a sparkarrester, you may
purchase one from yourAuthorized Tecumseh Servicing
Dealer• In some cases the mufflermay need to be replaced
toallow the spark arresterto be installed•
181-807-14 Two-Cycle Engine oHorizontal/Vertical Crankshaft • Air-Cooled Page 15
XI. Maintenance Intervals
Maintenance is one ofthe mostimportant things thatyou
can do to extend the life ofyourTecumseh Engine. if you
are unable to perform maintenance intervalsyourself,
contact yournearest Authorized Tecumseh Servicing
Dealer. You may also callTecumseh Power companyat
1-800-558-5402 or visitwww,TecumsehPower.cem to
locate your dealer.
ALWAYS promptly follow maintenance intervalslisted.See
Table 6.
Table 6. Maintenance Intervals
Procedure Time
Clean 5 hrs. Or Before Each Use
CoolingFins
Replace 100 hrs. Or seasonally
Spark Plug
Clean
Muffler& Cylinder 75-100 hrs. Or seasonally
Exhaust Ports
First Scheduled Maintenance
Every 5 Hours or Before Each Use
1. Clean Cooling Fins
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Date
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Owner/Dealer
Every 100 Hours or Seasonally
1. Replace Spark Plug
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Date Owner/Dealer
Every 75-100 Hours or Seasonally
1. Clean Muffler & Cylinder Exhaust Ports
NOTE
For thismaintenance procedureit is recommended thatthe
engine be taken toan Authorized TecumsehServicing
Deale_
Page 16 Two-Cycle Engine • HorizontaL/Vertical Crankshaft • Air-Cooled 181-807-14
NOTES
181-807-14 Two-Cycle Engine • Ho#zontal/Vertical Crankshaft •Air-Cooled Page 17
Page 18 Two-Cycle Engine • Hodz ontal/Vertical Crankshaft °Air-Cooled 181-807-14
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