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Table of Contents
- 1 Oil & Fuel Recommendations
- 2 Before Starting
- 3 Electric Starter
- 4 Recoil Starter
- 5 Spark Plug
- 6 Stopping
- 7 Maintenance
- 8 Engine Oil Level
- 9 Adjustments
- 10 Storage
- 11 Engine Speed
- 12 Warranty and Repair
- 13 California & Us Epa Emission Control Warranty Statement
- 14 Owner's Warranty Responsibilities
- 15 Important Note
- 16 Emission Control System Warranty
- Download this manual
THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD ENDANGER THE PER-
SONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL
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:
California Proposition 65
known to the State of California to cause cancer, birth defects or other reproductive harm.
SPARK PLUG
MUFFLER
CARBURETOR
COVER
CHOKE
IGNITION KEY OR
IGNITION SWITCH
(IF SO EQUIPPED)
OIL DRAIN PLUG
FAST
SLOW
STOP
WARNING:
SPARK PLUG WIRE
OFF
FULL
IGNITION KEY
CHOKE
The engine exhaust from this product contains chemicals
OIL FILL PLUG AND
DIPSTICK
OIL DRAIN PLUG
(IF SO EQUIPPED)
HSSK50
Figure 1
Page 1
OPERATOR'S
MANUAL
and MAINTENANCE INSTRUCTIONS for
TECUMSEH
MODELS
HSK35,40, HSSK50
SNOW BLOWER ENGINE
HORIZONTAL CRANKSHAFT
AIR COOLED -FOUR-CYCLE ENGINE
INSERT TO RUN REMOVE TO STOP
181-637-14
3-1-00
FUEL FILL CAP
FUEL TANK
PRIMER
STARTER
HANDLE
FUEL
VALVE
RECOIL
STARTER
CHOKE
MODEL AND
D.O.M. DECAL
MUFFLER
HSK35-40
181-637-14
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Table of Contents
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Summarization of Contents
Oil & Fuel Recommendations
Recommended Oil Type
Use clean, high-quality detergent oil with API service "SF" - "SJ".
Recommended Fuel Type
Use fresh, clean, unleaded gasoline only. Do not use leaded or gasoline with methanol.
Before Starting
Read Equipment Instructions
Read all instructions provided with the equipment before operating the engine.
Check and Fill Engine Oil Level
Check oil level with dipstick, ensure it's between FULL and ADD marks. Fill if necessary.
Fill Fuel Tank Safely
Clean fill area, add unleaded gasoline, leave 1/2" space. Never fill indoors or when hot.
Alternative Fuel Systems
Ensure LPG/natural gas fuel systems are leakproof and meet applicable codes.
Pre-Start Checks
Verify neutral gear, spark plug wire connection, ignition position, and fuel valve.
Starting the Engine
General Starting Safety
Never run engine indoors or in enclosed areas due to carbon monoxide risk.
Keep Clear of Moving Parts
Keep hands, feet, hair, and loose clothing away from moving engine parts.
Muffler Temperature Warning
Muffler and surrounding areas can exceed 150°F (65°C); avoid these areas.
Starting with Recoil Starter
Follow steps for choke, primer, and pulling the starter rope for engine start.
Warm Engine Restart Procedure
For warm restarts, set choke to OFF and use primer only once.
Dealing with a Frozen Recoil Starter
If starter is frozen, pull rope out as far as possible and let it snap back.
Starting with Electric Starter
Connect power, set controls, use choke/primer, then push starter button or turn key.
Electric Starter Safety Warning
Ensure proper grounding for 120V AC starter to avoid shock hazards.
Note for 12V Battery Electric Starter
Disregard power cord instructions if engine has a 12V battery-operated electric starter.
Power Cord Connection Order
Connect power cord to engine switchbox first, then to wall receptacle.
Electric Starter Thermal Protection
Starter is thermally protected; it will stop if overheated and restart after cooling.
Stopping the Engine
Before Stopping Engine
Run engine for a few minutes to dry moisture, then perform actions for recoil or electric starter.
Prepare Recoil Starter for Storage
Pull recoil starter rope rapidly several times with engine running to help prevent freeze-up.
Prepare Electric Starter for Storage
Connect power, run starter for seconds, then disconnect cord from receptacle first.
How to Stop the Engine
Move equipment control or engine lever to STOP/OFF. Remove ignition key if equipped.
Disconnect Spark Plug Wire
Disconnect spark plug wire and keep it away from the plug to prevent accidental starting.
Prevent Unauthorized Starting
Turn ignition switch to OFF and remove key to prevent unauthorized starting.
Storage Fuel Safety
Never store engine with fuel indoors or in enclosed areas due to fire risk.
After Stopping Engine
Wipe moisture, move controls and choke back/forth, leave choke in FULL position.
Maintenance
Muffler Heat Warning (Maintenance)
Muffler and surrounding areas can exceed 150°F (65°C); avoid these areas during maintenance.
Check Engine Oil Level
Check oil level every five operating hours or each time engine is used.
Change Engine Oil
Change oil after first 2 operating hours and every 25 hours thereafter, or if dirty.
Spark Plug Maintenance
Check spark plug yearly or every 100 hours. Clean, inspect, and set gap to .030.
Spark Plug Replacement Type
Use a resistor spark plug for replacement (e.g., Champion RJ-19LM).
Tighten Fasteners
Regularly check and tighten all nuts, bolts, and attachments on engine and equipment.
Adjustments
General Adjustment Policy
Avoid unnecessary adjustments; factory settings are usually satisfactory.
Carburetor Adjustment
Consult authorized service outlet for carburetor adjustments or for operation above 7,000 feet.
Engine Speed Governor
Never tamper with the engine governor; factory settings ensure proper speed and prevent overspeeding.
Storage
Storage Safety Warning
Never store engine with fuel indoors/enclosed areas due to fire/explosion risk.
Prepare Fuel System for Storage
Drain fuel from tank and carburetor to prevent gum deposits, run engine until empty.
Drain Carburetor
Drain carburetor bowl by pressing upward on the bowl drain screw.
Change Oil for Storage
Change oil if it has not been changed in the last three months.
Oil Cylinder Bore for Storage
Squirt 1 oz. oil into spark plug hole, rotate engine, then reinstall spark plug.
Clean Engine Exterior
Remove any snow, ice, or slush from the exterior of the engine.
Warranty and Repair
Service and Repair Information
Contact authorized Tecumseh service outlets for repairs or warranty service.
Mechanics Handbook Availability
A Mechanics Handbook for repairs not covered in this manual is available.
Limited Warranty Coverage
Details limited warranty periods for consumer and commercial use.
Warranty Service Procedure
Evidence of purchase date required; purchaser pays transportation costs.
Emission Control System Warranty
ECS Warranty Applicability
Applies to 1995/1997 and later model year engines, lasting 24 months.
General Emissions Warranty Coverage
Warrants engine conformance to regulations and freedom from defects in emissions-related parts.
ECS Warranty for Replacement Parts
Warrants replacement emissions parts for the remainder of the ECS warranty period.
Emission-Related Parts List
Lists components covered under the emission control system warranty.
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