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Tecumseh HM90 - User Manual

Tecumseh HM90
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OJPERATOR
9
§
MANUAL
..
~.
y,
HM90
HHM80
..
,
HM80
HM100
and MAINTENANCE INSTRUCTIONS
for
TECUMSEH
HORIZONTAL CRANKSHAFT
. AIR
COOLED·
FOUR-CYCLE ENGINE
MODEL
.~
!\«>
TECUMSEH
*.llRESPECT NATURE
~.:::
- - - -""'-
--
==
--:
- -
~-=:~--
- -
---==
A
TiS
SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD ENDANGER THE
P ONAL SAFETY ANDIOR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW
ALL
INSTRUCTIONS
IN
THIS
.
MA'
AL
AND ANY PROVIDED WITH THE EQUIPMENT
ON
WHICH THIS ENGINE IS USED BEFORE ATTEMPTING
TO
OPERATE
. YOUR TECUMSEH ENGINE.
"
THESE SYMBOLS MAY APPEAR
ON
THE ENGINE:
i;
..
m
OFF
B
FULL
FAST
SLOW
STOP
CHOKE
.'
'"
~:::;=================================~~~
..
.;,.~
L');.
California Proposition
65
WARNING: The engine exhaust from this product contains chemicals
.....
..
known to the State
of
California to cause cancer, birth defects or other reproductive harm.
~
.-.''--'''
....
'
.....
..0:.---
-
__
~~.
3-1-99
181~'1'4'""~
FUEL
TANK
181-630-14
~--
FUEL FILL
CAP
Figure 1
MUFFLER
LEVERS &
LINKAGE
Page 1
<-Be
sureoriginal containeris marked:
A.P.l.service"SP-"SJ".
FOR
SUMMER
(ABOVE
32"F;
O"C)
USE
SAE
30OIL.
Tecumseh
specially formulated oil is available
at
any
Authorized
Tecumseh
Service Outlet.
Order
as part
number
730225. Using
,multigradeoilwill increaseoil Clflsumplion.
FOAWlNTEA(BELOW32"F;O"CfUSESAE5W300IL
Tecumeeh specially formulated oil is available at
any
Authorized
T
ecurneeh ServiceOullet. Orderaspart number730226.
(SAE
10WIllan
acoeplllblesubslitute.)
(BELOW~SAEOW300ILisan
acceptablesubstitute.
DONOTU~10W400IL.
OILSUIiPCAPAcrrY:
ModeIs.HM7~100,HMXL70:
260unces
(1-518
U.S. pints)
Model
HHM80: 34 ounces
(2-1/8 U.S. pints)
@
AFRESH,
CLEAN,
UNLEADED
REGULAR,
UNLEADED
PREMIUM.
OR
REFORMULATED
AUTOMOTIVE
GASOLINE
ONLY.
DO
NOT
USELEADEDGASOUNE.
::I
NOTE:
DO
NOT
USE
GASOLINE
CONTAINING
METHANOL
(WOOD AIR CLEANER
ALCOHOL). Gasoline containing up
to
10% ethanol
or
grain alcohol
("Gasohotj
maybe
used
butrequires special carewhenengineisunused
for
extended
periods.
Sea
"STORAGE"instructionson Page 5.
01
L DRAIN
NOTE:
Use clean oil and fuel and store in approved, clean, covered
PLUG
STARTER
containers.Usecleanfill tunnels.
Never use "stale" gasoline left
over
from last season
or
stored
for
long ......
...;.H..;;,A..;;,N..;.;D;,.;L;;,,;E"--
---'
periods.
ENGINE.WHICH
ARE
CERTIFIED
TO
COMPLY
WITH
CALIFORNIA
AND
.-------"""T-----------,.------~
u.s.
EPAEIIlSSlON
REGULATIONS
FOR
ULGE
ENGINES,arecertified
to
I
~
COOLI
NG
~
on
regularunleaded gasoline, includethe following emission control
~~.!
FINS
syslBm(s): EM,
1WC
(if so equipped); Do
not
include
any
user
adjustable
~
]
features-thereforenoolheradjustmentsare needed.
~_~'_"-:::~_"~-;~::"_"'i;.~
STOP
OIL
FILL PLU
~~,~~~~
~;
---
SWITCH
& DIPSTICK (IF
OIL & FUEL RECOMMENDATIONS
LJ~JI~I~J
SPARK PLUG
SO
EQUIPPED)
MODEL
AND
WIRE
*OPERATE ENGINE, YOU WILL
NEED
THE FOLLOWING:
D.O.M.DECAL
lJj
A
CLEAN,
HIGH
QUALITY
DETERGENT
OIL.
Question and Answer IconNeed help?

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Tecumseh HM90 Specifications

General IconGeneral
Engine Type4-stroke, air-cooled, OHV
Governor TypeMechanical
Fuel TypeGasoline
Fuel SystemCarburetor
Lubrication SystemSplash
Shaft RotationCounterclockwise (from PTO side)
Starter TypeRecoil

Summary

Oil and Fuel Recommendations

High-Quality Detergent Oil

Recommends API service SF-SJ oil, SAE 30 for summer, SAE 5W30 for winter.

Unleaded Gasoline

Specifies unleaded gasoline types, warns against methanol and stale fuel.

Warranty and Repair

Limited Warranty for New Engines and Ignition Modules

Details warranty coverage and periods for engines and ignition modules based on use.

Before Starting

Read Equipment Instructions

Emphasizes reading all associated equipment instructions before operation.

Fill Oil Sump or Check Oil Level

Guides on checking and filling engine oil to the correct level.

Fill Fuel Tank

Provides instructions on filling the fuel tank with unleaded gasoline.

Pre-Start Checks

Lists pre-start checks like neutral gear, spark plug wire, stop switch, and fuel valve.

Starting

Recoil Starter

Explains the procedure for starting the engine using the recoil starter.

Electric Starter

Explains the procedure for starting the engine using an electric starter.

Adjustments

Carburetor Adjustments

Advises consulting a service outlet for carburetor adjustments and mentions altitude effects.

Engine Speed Governor

Warns against tampering with the factory-set governor and its warranty implications.

Storage Procedures

Drain Fuel System

Details steps to drain the fuel tank and carburetor for storage to prevent gumming.

Drain Carburetor

Specific instruction for draining the carburetor bowl.

Change Oil for Storage

Recommends changing oil if not done in three months.

Oil Cylinder Bore

Instructions for oiling the cylinder bore for storage.

Clean Engine

Advice to remove debris from the engine exterior.

Battery Storage

Refers to manufacturer instructions for battery storage.

Stopping the Engine

After Engine is Stopped

Lists post-stopping procedures like closing fuel valve and disconnecting spark plug wire.

Maintenance

Check Oil Level

Instructs to check oil level regularly.

Change Oil

Details the process for changing engine oil.

Spark Plug Maintenance (Figure 5)

Guide for inspecting and replacing the spark plug.

Cooling System Maintenance (Figure 5)

Emphasizes cleaning cooling fins and air intake for proper cooling.

Spark Plug Maintenance (Figure 6)

Details spark plug maintenance, including gap setting and replacement.

Air Cleaner Servicing

Instructions for servicing foam and paper air filters.

Air Cleaner Types A, B, C

Further instructions on servicing Air Cleaner types A, B, and C.

Alternator and Battery

Refers to manufacturer instructions for alternator/battery issues.

Cooling System Maintenance (Figure 7)

Reiteration on cleaning cooling fins and air intake.

Emission Control System Warranty

Applicability

Specifies the warranty period for California and other states' engines.

General Emissions Warranty Coverage

Outlines Tecumseh's warranty for emissions-related parts.

Emission-Related Parts List

Lists components covered under the emission control system warranty.

Parts List

Tow Bar Installation

Remove Engine Bolt Components

Instructs to remove a specific nut and washer from the engine bolt.

Position Tow Bar Base by Axle

Details positioning the tow bar base based on axle location.

Align Tow Bar Base with Mounting Bolt

Describes aligning the tow bar base with the engine mounting bolt.

Secure Tow Bar Base to Frame

Instructs to firmly press and tighten the tow bar base to the frame.

Attach Tow Bar Tongue

Explains how to attach the tow bar tongue to the base.

Removing Tow Bar

Detach Tow Bar Tongue from Tractor

Details removing the clevis pin and spring pin attaching the tongue to the tractor.

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