Safety Definitions .................................................................................................................................... ii
General Safety Precautions ....................................................................................................................1
General Information .................................................................................................................................2
Reviewing The Engine ID Label ..............................................................................................................
Model Numbering Identification for TecumsehPower's Full Engine Line ................................................
The information in this guide is intended to assist individuals who are knowledgeable in basic en-
WARNING
WARNING
gine repair and maintenance. If you are unfamiliar with two and four cycle engine operation and
maintenance, DO NOT attempt any maintenance or repairs. Contact your local TecumsehPower
Servicing Dealer for assistance.
IMPORTANT NOTICE!
Safety Definitions
Statements in this manual preceded by the following
words and graphics are of special significance:
Or
WARNING indicates a potentially hazardous situation
which if not avoided, could result in death or serious
injury.
NOTE
Refers to important information and is placed in italic
type.
It is recommended that you take special notice of all
items discussed on the next two pages and wear the
appropriate safety equipment.
Before operating an engine it is your responsibility
read the Operator’s Manual. Follow these basic rules
for your personal safety:
to
TecumsehPower Contact Information
For engine adjustments, repairs or warranty service,
contact your nearest Authorized TecumsehPower
Servicing Dealer. Find them on our website at www.
TecumsehPower.com or call TecumsehPower at 1-800558-5402 or 262-377-2700 if you are located outside
the U.S.
• Keep this manual handy at all times for
• Read it carefully and familiarize yourself
Notice Regarding Emissions
Engines which are certified to 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) ThreeWay Catalyst (if so equipped).
future reference.
with operating, maintenance, components
and safety instructions.
ii
Page 4
General Safety Precautions
A. Avoid Carbon Monoxide Poisoning
All engine exhaust contains
carbon monoxide, a deadly gas.
Breathing carbon monoxide can
cause headaches, dizziness,
drowsiness, nausea, confusion
and eventually death.
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.
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.
B. Avoid Gasoline Fires
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:
• 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.
• NEVER remove fuel cap or add fuel when engine
is running.
• NEVER start or operate the engine with fuel fill cap
removed.
• Allow engine to cool before refueling.
• NEVER fill fuel tank indoors. Fill fuel tank outdoors
in a well-ventilated area.
• DO NOT smoke while refueling tank.
• Use only an approved red GASOLINE container
to store and dispense fuel. TecumsehPower
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
mouth.
C. Adult Supervision of Operation, Refueling
and Maintenance
Not everyone who is allowed to use an engine is capable
of safely and responsibly operating, maintaining and/or
fueling it. TecumsehPower recommends the following:
• An adult should fuel the engine. NEVER allow
children to refuel an engine.
• An adult should perform maintenance on an engine.
Only allow children to perform maintenance if an
adult has determined they are experienced and
capable of such operation.
• An adult should start the engine. 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 engine, especially
by children, NEVER leave it unattended when it is
running.
D. Stay Away from Rotating Parts
NEVER operate an engine with an unguarded engine
shaft.
The equipment manufacturer may attach 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 engine; 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.
1
Page 5
General Information
The following information is being provided to assist you in locating and recording your engine model and specification
numbers. This information will be needed to use this book or obtain parts from a local TecumsehPower dealer.
Model Numbering System for TecumsehPower’s Full Engine Line
Prior to 2004 Production
LOCATING AND READING ENGINE MODEL AND SPECIFICATION
THE FOLLOWING WILL BE NEEDED TO LOCATE PARTS FOR YOUR ENGINE.
Model Specification (DOM)
ENGINE: TVM195 150288G 8150C
ENGINE MODEL SPEC NO. D.O.M
TVM195 150288G 8150C
Typical Engine I.D. Label
ENGINE MODEL NUMBER
LOCATED UNDER COVER
ENGINE MODEL
NUMBER
LOCATIONS
Tecumseh Power Company
THIS ENGINE MEETS 1995-1998 CALIF/US
EPA PH1 APPLICABLE EMISSION REGULATIONS FOR ULGE ENGINES FUEL REGULAR
UNLEADED OIL SAE 30
TVM195 150288G (E)
STP318U1G2EA
318
8150 C
ENGINE MODEL NUMBER LOCATIONS
2
Page 6
Model Numbering System for Current TecumsehPower’s Full Engine Line
Reviewing The Engine ID Label
Effective with the 2004 Model Year, we have changes to the engine I.D. label on our products. The following pages
will explain the information contained on the label dependent on the age of your product.
Specification Number
The numbers following the model number make up the
specification number.
Using model LV195EA-361541B, as an example,
interpretation is as follows:
LV195EA-361541B is the model and specification
number.
L V 195 E A - 361541B (B)
{
{
Indicates a standard power configuration
Indicates EPA/CARB compliant
Indicates a 195 cc displacement
Indicates a vertical shaft configuration
Indicates an L-Head, side valve configuration
{
Warranty Code
Is the specification number used
for properly identifying the parts of
the engine
Date of Manufacture
The Date of Manufacture (D.O.M.) indicates the
production date.
For this example, 03188BC0010 is the D.O.M. (Date of
Manufacture).
Year
2003
Day of
Year
188th
Mfg
Facility
Assembly
Line / Shift
Individual
Serial #
10th unit built
03 188 B C 0010
Typical Engine
I.D. Label
Locations
ENGINE MODEL NUMBER
LOCATED UNDER COVER
ENGINE MODEL NUMBER LOCATIONS
ENGINE MODEL
NUMBER
LOCATIONS
3
Page 7
Model Numbering Identification for TecumsehPower’s Full Engine Line
WILL GIVE CORRESPONDING CHAMPION
AND AUTOLITE SUBSTITUTIONS.
LAV25-50
TVM125-170
V40-80
VH40-100
VM70-100
Champion Autolite
35395 - RJ19LM NA
35552 - RL82C 4092
34046 - RL86C 425
34645 - RN4C 403
33636 - RJ17LM 245
34277 - RJ8C 304
SPARK PLUG AIR GAP ON ALL MODELS IS
.030 (.762 mm)
Service Number 34046
RL86C
†
OHM120
‡
OH318SA (OHSK110), OH358SA (OHSK120-130)
OVM120
* OVXL120
* OVXL/C120
* OVXL125
Note:
* OVXL models with specification nos. 202700, 203000 and
up, use RN4C.
†
OHM120 models with specification nos. 224000 and up,
use RN4C.
‡
OHSK110, OHSK120-130 models with specification nos.
223000 and up, use RN4C.
Note: If you need assistance locating your engine model numbers please check page 3 or 4.
NOTE:
Not all spark plugs have the same heat range or reach.
Using an incorrect spark plug can cause severe engine
damage or poor performance. TecumsehPower uses
all three of the reaches shown.
FOR TWO CYCLE INFORMATION
5
3/8"
9.525 mm
REFER TO NEXT PAGE.
1/2"
12.700 mm
3/4"
19.050 mm
Page 9
Spark Plug Replacement
NOTE: Only models which will continue to be manufactured long term will have an updated Model designation.
2-CYCLE SPARK PLUG
Service Number
611100
Service Number
33636
Service Number
35395
Service Number 611049
RCJ6YRJ17LMRJ19LMRCJ8Y
TC300
TCH300
TM049XA
AV600
AV520
TVS600
TV085XA
TVS840
TVXL840
AH520
AH600
HSK840
HXL840
TC200
TCH200 Type 1500
TH098SA
EUROPA MODELS
4-CYCLE SPARK PLUG
Service Number 33636Service Number 34645
RJ17LMRN4C
All Horizontal Models
BV
BVL
BVS
Centura
Futura
HTL
LAV
Legend
Premier 153/173
Prisma
Spectra
Synergy
Vantage
Centrua OHV
Futura OHV
2-CYCLE SPARK PLUG
RJ17LM
AV85/125
AV520/600
Geotec OHV
Premier 45/55
Service Number 33636
MV100S
TVS600
HSK600
HSK635
TH139SA
HSK845, 850
TH139SP
HSK870
Synergy OHV
NOTE: THE SERVICE NUMBERS LISTED BELOW
WILL GIVE CORRESPONDING CHAMPION
AND AUTOLITE SUBSTITUTIONS.
Champion Autolite
35395 - RJ19LM NA
33636 - RJ17LM 245
611100 - RCJ-6Y 2974
611049 - RCJ-8Y 2976
SPARK PLUG AIR GAP ON ALL MODELS IS
.030 (.762 mm)
3/8"
9.525 mm
NOTE:
Not all spark plugs have the same heat range or reach. Using an
incorrect spark plug can cause severe engine damage or poor
performance. TecumsehPower uses all three of the reaches
shown.
Note: If you need assistance locating your engine model numbers please check page 3 or 4.
1/2"
12.700 mm
6
3/4"
19.050 mm
Page 10
Fuel Recommendations
WARNING
Today’s fuels have a short shelf life and it is recommended you buy no more than a two week
supply at a time.
GASOLINE
TecumsehPower strongly recommends the use of fresh, clean, unleaded regular gasoline in all
TecumsehPower engines. Unleaded gasoline burns cleaner, extends engine life, and promotes good
starting by reducing the build-up of combustion chamber deposits. Leaded gasoline, gasohol containing
no more than 10% ethanol, premium gasoline, or unleaded gasoline containing no more than 15% MTBE
(Methyl Tertiary Butyl Ether), 15% ETBE (Ethyl Tertiary Butyl Ether) or 10% ethanol, can be used if
unleaded regular gasoline is not available.
Reformulated gasoline that is now required in several areas of the United States is also acceptable.
NEVER USE gasoline, fuel conditioners, additives or stabilizers containing methanol, gasohol containing
more than 10% ethanol, unleaded regular gasoline containing more than 15% MTBE (Methyl Tertiary Butyl
Ether), 15% ETBE (Ethyl Tertiary Butyl Ether) or 10% ethanol, gasoline additives, or white gas because
engine/fuel system damage could result.
SPECIALTY FUELS
Fuels being marketed for use on small engines can have a significant effect on starting and engine
performance. Prior to using any specialty fuel, the Reid Vapor Pressure (RVP) must be determined. Fuels
with a rating of less than 50kPa (7psi) should not be used in summer, and fuel with a rating of 85kPa
(12psi) should not be used during winter.
SHORT TERM STORAGE
NEVER store the engine with fuel in the fuel tank inside a building with potential sources
of ignition such as hot water and space heaters, clothes dryers, electric motors, etc.
If engine fuel stored in the gas tank and/or an approved gas container is to be unused without gasoline
stabilizer for more than 15-30 days, prepare it for short term/seasonal storage.
TecumsehPower recommends using ULTRA-FRESH™ 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 TecumsehPower Servicing Dealer.
Always follow mix ratio found on stabilizer container. Failure to do so may result in equipment damage.
It is not necessary to drain stabilized gas from carburetor.
FUEL TREATMENT
1. Add fuel stabilizer according to manufacturer’s instructions.
2. Run engine at least 10 minutes after adding stabilizer to allow it to reach carburetor.
3. Instead of using a fuel preservative/stabilizer, you can empty the fuel tank as described under "Extended
Storage”.
7
Page 11
Fuel Recommendations - continued
EXTENDED STORAGE
NOTES
Clean debris from engine before draining fuel from carburetor. If you have prepared your fuel for short
term storage it is not necessary to drain fuel that contains stabilizer from your carburetor.
To avoid severe injury or death, DO NOT pour fuel from engine or siphon fuel by mouth.
1. To prevent serious injury from fuel fires, empty fuel tank by running engine until it stops from lack of
fuel. DO NOT attempt to pour fuel from engine.
2. Run the engine while waiting until the remaining fuel is consumed.
NEVER leave the engine unattended when it is running and NEVER run engine in enclosed areas.
FUEL ADDITIVES
Only fuel additives such as TecumsehPower’s fuel stabilizer Part No. 730245A or liquid varieties can be
used when mixed properly. For winter applications, Isopropyl alcohol fuel dryers may be used in the fuel
system but must be mixed at the proper ratio recommended by the manufacturer. NEVER USE METHANOL
BASED FUEL DRYERS.
8
Page 12
TECUMSEHPOWER 4-CYCLE LUBRICATION
TecumsehPower recommends the use of a high quality,
brand name oil with a minimum classification of SL/SJ.
Very few air cooled engines have any type of oil filtration
system, making regular oil changes critical to remove
TecumsehPower
4-CYCLE ENGINE OIL
shown with model names prior to 2004
CLASSIFICATIONS: “SL/SJ"
DO NOT USE 10W40
CAPACITIES:
Engine Model ml Oz.
All LAV, TVS, LEV, OVRM ................................ 630 21
NOTE: Vertical shaft engines with auxiliary PTO:
26 oz. (700 ml).
9
Page 13
Four Cycle Troubleshooting
The following is provided as a basic troubleshooting guide. Its use requires a complete review of all conditions
and symptoms. Always examine the exterior for clues: leaks, excessive dirt, or obvious damage. Some repairs will
require the assistance of a TecumsehPower Servicing Dealer.
Preparation
Before troubleshooting any system problem, see original equipment manufacturer’s (O.E.M.) instructions.
Make your troubleshooting easier by preparing as follows:
• Work in a clean, well-lighted place.
• Keep proper tools and materials nearby.
•
Keep an adequate supply of clean petroleum-based solvent.
To reduce the risk of serious injury or death from fires and/or explosions, NEVER use flammable
solvents (e.g., gasoline) to clean serviceable parts. Use a water-based, non-flammable solvent
such as TecumsehPower Degreaser Cleaner.
CAUTION
• Wear appropriate eye protection.
• Use only approved air blow nozzles.
NEVER use compressed air to clean debris from yourself or your clothing. When using compressed
air to clean or dry serviceable parts:
• Air pressure must not exceed 30psi (206kPa).
• Shield yourself and bystanders from flying debris.
FUEL SYSTEM
Engine Will Not Start
Check if spark plug is wet or
Wet
Defective spark plug
Use Tester 670366
Restricted air filter
Improper or stale fuelCheck fuel supply and fuel cap vent
Exhaust ports pluggedRestriction in fuel system (filter)
Carburetion problems due to flooding,
over priming, etc.*
dry
Dry
Review with the customer proper
priming procedure (3-5 primes,
waiting 2 seconds between each
prime)
If equipped with a choke, check for full
travel. Check throttle cable and control
for proper adjustment.
Carburetion problem*
(bad bowl gasket)
Ignition SystemPoor Compression
Should more extensive repair be needed, we recommend you contact a local TecumsehPower Servicing Dealer
for repair. Repair manuals are also available from your local dealer or direct from www.TecumsehPower.com. A
complete list of the available manuals can be found at the end of this book.
NOTE: Refer to Technician's Handbook for a more detailed list of remedies.
10
Page 14
Four Cycle Troubleshooting - continued
To reduce the risk of serious injury or death from fires and/or explosions, NEVER use flammable
solvents (e.g., gasoline) to clean serviceable parts. Use a water-based, non-flammable solvent
such as TecumsehPower Degreaser Cleaner.
CAUTION
• Wear appropriate eye protection.
• Use only approved air blow nozzles.
NEVER use compressed air to clean debris from yourself or your clothing. When using compressed
air to clean or dry serviceable parts:
• Air pressure must not exceed 30psi (206kPa).
• Shield yourself and bystanders from flying debris.
IGNITION SYSTEM
Engine Will
Not Start
Check for Spark
SparkNo Spark
Check flywheel for
correct key, damaged
or sheared key
Set proper air gap on
external coil
Set proper point gap,
check condensor and
timing
Test coil for
intermittent or weak
spark
Replace spark plug
Isolate engine from all
equipment (disconnect
wiring harness), repeat
test
SparkNo Spark
Equipment problem,
check switches, wiring and
equipment controls
Engine problem, check
for shorts or grounds
in wiring
Parasitic load too highTest ignition module
Should more extensive repair be needed, we recommend you contact a local TecumsehPower Servicing Dealer
for repair. Repair manuals are also available from your local dealer or direct from www.TecumsehPower.com. A
complete list of the available manuals can be found at the end of this book.
NOTE: Refer to Technician's Handbook for a more detailed list of remedies.
11
Page 15
TECUMSEHPOWER 2-CYCLE ENGINE OIL
The proper type and ratio of 2-cycle oil is critical to
long life and low maintenance of the engine. The use
of non-certified oils and improper mix ratio’s can cause
severe engine damage and possibly void warranty
consideration.
TecumsehPower 2-CYCLE ENGINE
OIL may be used in a variety of
2-cycle engines including: outboards,
lawnmowers, snow-blower, string
trimmers, and edgers at any fuel/oil
mixing ratio up to 50:1.
• Superior Lubricity Extends engine
life by reducing wear
• Longer Spark Plug life through
reduced fouling
• Reduces Carbon Build-Up
extending required service intervals
• Helps maintain emissions
compliance which helps our
environment
• Contains Fuel Stabilizer-Extends
fuel life and protects fuel system
ENGINE FUEL MIX
U.S.
Gasoline
24:11 Gallon5 oz.4 Liters167 ml
2 Gallons11 oz.8 Liters333 ml
5 Gallons27 oz.20 Liters833 ml
32:11 Gallon4 oz.4 Liters125 ml
2 Gallons8 oz.8 Liters250 ml
5 Gallons20 oz.20 Liters625 ml
50:11 Gallon2.5 oz.4 Liters 80 ml
2 Gallons5 oz.8 Liters160 ml
5 Gallons13 oz.20 Liters400 ml
U.S.
Amount of Oil
To Be Added
METRIC
Petrol
METRIC
Amount of Oil
To Be Added
12
Page 16
Two Cycle Troubleshooting
The following is provided as a basic troubleshooting guide. Its use requires a complete review of all conditions
and symptoms. Always examine the exterior for clues: leaks, excessive dirt, or obvious damage. Some repairs will
require the assistance of a TecumsehPower Servicing Dealer.
Preparation
Before troubleshooting any system problem, see original equipment manufacturer’s (O.E.M.) instructions.
Make your troubleshooting easier by preparing as follows:
• Work in a clean, well-lighted place.
• Keep proper tools and materials nearby.
•
Keep an adequate supply of clean petroleum-based solvent.
To reduce the risk of serious injury or death from fires and/or explosions, NEVER use flammable
solvents (e.g., gasoline) to clean serviceable parts. Use a water-based, non-flammable solvent
such as TecumsehPower Degreaser Cleaner.
CAUTION
• Wear appropriate eye protection.
• Use only approved air blow nozzles.
NEVER use compressed air to clean debris from yourself or your clothing. When using compressed
air to clean or dry serviceable parts:
• Air pressure must not exceed 30psi (206kPa).
• Shield yourself and bystanders from flying debris.
FUEL SYSTEM
Engine Will Not
Start
WetDry
Defective spark plug
Restricted air filter
Improper fuel mix or stale fuel
Sheared or partially sheared
flywheel key
Carburetion problems due to
flooding, over priming, etc.*
Check if spark plug is
wet or dry
Review with customer priming or choking
procedure (3-5 primes, if equipped, waiting 2
seconds between each prime)
If equipped with a choke, check for full travel.
Check throttle cable and control for proper
adjustment.
Carburetion problem*
(bad bowl gasket)
Check fuel supply and fuel cap vent
Restriction in fuel system
(filter, screen)
Ignition SystemPoor compression
Crankcase seals or gaskets leakingDamaged reed, port plugs, seals or gaskets
Should more extensive repair be needed, we recommend you contact a local TecumsehPower Servicing Dealer
for repair. Repair manuals are also available from your local dealer or direct from www.TecumsehPower.com. A
complete list of the available manuals can be found at the end of this book.
NOTE: Refer to Technician's Handbook for a more detailed list of remedies.
13
Page 17
Two Cycle Troubleshooting - continued
To reduce the risk of serious injury or death from fires and/or explosions, NEVER use flammable
solvents (e.g., gasoline) to clean serviceable parts. Use a water-based, non-flammable solvent
such as TecumsehPower Degreaser Cleaner.
CAUTION
• Wear appropriate eye protection.
• Use only approved air blow nozzles.
NEVER use compressed air to clean debris from yourself or your clothing. When using compressed
air to clean or dry serviceable parts:
• Air pressure must not exceed 30psi (206kPa).
• Shield yourself and bystanders from flying debris.
IGNITION SYSTEM
Engine Will
Not Start
Check for Spark
SparkNo Spark
Check flywheel for
correct key, damaged
key or key adaptor
Set proper air gap on
external coil
Set proper point gap,
check condensor and
timing (if equipped)
Test coil for
intermittent or weak
spark
Check electric starter
if applicable
Replace spark plug
Isolate engine from all
equipment (disconnect
wiring harness), repeat
test
SparkNo Spark
Equipment problem,
check switches, wiring and
equipment controls
Engine problem, check
for shorts or grounds in
wiring
Parasitic load too highTest ignition module
Should more extensive repair be needed, we recommend you contact a local TecumsehPower Servicing Dealer
for repair. Repair manuals are also available from your local dealer or direct from www.TecumsehPower.com. A
complete list of the available manuals can be found at the end of this book.
NOTE: Refer to Technician's Handbook for a more detailed list of remedies.
14
Page 18
Cross Reference for Specification - To - Model Number Designation
This cross reference chart allows you to determine an engine Model Number if you only have the Specification
Number.