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Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled

181-1273-14

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.

!

WARNING

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, 

STAY AWAY from hot areas of 
engine. DO NOT operate the engine 
without the muffler guard in place, 
if equipped.

• To reduce the risk of fire keep all materials that can 

burn, including grass and leaves, away from muffler 
and rest of engine. DO NOT operate, idle or park 
engine powered equipment in long dry grass or 
other dry ground cover.

G. Avoid Accidental Starts

 NOTE

The Twin Cylinder Engines have

 two 

spark plug 

connections.

To prevent accidental starting when working on equipment 
always:

• Carefully disconnect spark plug wire and keep it 

away from spark plug. See Figures 2 and 3.

• Keep the disconnected spark plug wire 

securely away from metal parts where arcing 
could occur. 

• Carefully attach the spark plug wire to the 

grounding post, if provided. 

• Disconnect battery at negative terminal first, if 

engine is equipped with a DC electric starter.

• Turn all engine switches to “OFF” position.

• Remove ignition key, if provided.

H. Use Hearing Protection

Engine noise may cause hearing damage. Always wear 
hearing protection when operating an engine.

Use of this engine on fun-carts, go-karts, or mini-bikes
can result in serious injury or death. TecumsehPower
Company manufactures the Power Sport line of engines
for use in such applications. Consult your local Authorized
TecumsehPower Servicing Dealer, call 1-800-558-5402,
or visit www.TecumsehPower.com for additional information.

Figure 1. Typical Flywheel Guard Location

Figure 2. Disconnecting/Connecting Spark Plug

Figure 3. Typical Spark Plug Grounding Post

Flywheel Guard

 NOTE

The Twin Cylinder Engines have

 two 

spark plug 

connections.

Summary of Contents for OV691

Page 1: ...ng Your Engine and Short Term Storage 8 VII Maintenance 8 VIII Transporting Your Engine 12 IX Storing Your Engine 12 X Preventing Forest Brush and Grass Fires 14 XI Maintenance Intervals 14 California...

Page 2: ...amiliarize yourself with operating maintenance components and safety instructions Notice Regarding Emissions NOTE Engines which are certified to comply with California and U S EPA emission regulations...

Page 3: ...Company 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 en...

Page 4: ...ns To prevent accidental starting when working on equipment always Carefully disconnect spark plug wire and keep it away from spark plug See Figures 2 and 3 Keep the disconnected spark plug wire secur...

Page 5: ...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 TecumsehPower Servi...

Page 6: ...rator s Manuals will not be considered warranty IV Before Starting Your Engine A Checking Oil Level To avoid engine damage it is important to Check oil level before each use and every 5 operating hour...

Page 7: ...feet away from engine To prevent injury or death from fuel fires follow these instructions 1 Stop engine and allow it to cool before refueling 2 Be sure engine is outdoors and in a well ventilated are...

Page 8: ...osition See Figures 8 and 9 3 Push starter button or turn ignition switch key see equipment manufacturer s instructions to start engine NOTES DO NOT operate an electric starter for more than 5 seconds...

Page 9: ...hly c Next move independent choke control to NO CHOKE position See Figure 11 5 Finally move independent speed control to desired speed in RUN range NOTES If engine starts but falters when independent...

Page 10: ...ly away from metal parts where arcing could occur Carefully attach the spark plug wire to the grounding post if provided Disconnect battery at negative terminal first if engine is equipped with a DC e...

Page 11: ...that additional oil be added to fill the filter Contact your Authorized TecumsehPower Servicing Dealer for a genuine replacement Oil Filter B Removing Debris from Engine Before each use remove grass...

Page 12: ...our air cleaner periodically needs to be cleaned or replaced NOTES ALWAYS inspect filter s for discoloration or dirt accumulation If either is present see I Servicing Foam Pre Filter instructions on t...

Page 13: ...ush down onto cover 8 Install wing nuts and tighten securely E Carburetor If you think your carburetor needs adjusting see your nearest Authorized TecumsehPower Servicing Dealer Engine performance sho...

Page 14: ...sion resulting in death or serious injury NOTES 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 f...

Page 15: ...tions 1 Carefully disconnect spark plug wires and keep them away from spark plugs See Figures 19 and 20 Keep the disconnected spark plug wires securely away from metal parts where arcing could occur C...

Page 16: ...ed to allow the spark arrester to be installed XI Maintenance Intervals Maintenance is one of the most important things that you can do to extend the life of your TecumsehPower engine If you are unabl...

Page 17: ...___________Owner Dealer Date_______________Owner Dealer Date_______________Owner Dealer Date_______________Owner Dealer Every 25 Hours or 3 Months 1 Clean Foam Pre Filter Date_______________Owner Deal...

Page 18: ...____________Owner Dealer Date_______________Owner Dealer Date_______________Owner Dealer Date_______________Owner Dealer Date_______________Owner Dealer Every 100 Hours or Seasonally 1 Replace Paper F...

Page 19: ...181 1273 14 Four Cycle Twin Cylinder Engine Vertical Crankshaft Air Cooled Page 17 NOTES...

Page 20: ...Page 18 Four Cycle Twin Cylinder Engine Vertical Crankshaft Air Cooled 181 1273 14...

Page 21: ...181 1273 14 Four Cycle Twin Cylinder Engine Vertical Crankshaft Air Cooled Page 19 NOTES...

Page 22: ...engine to a TecumsehPower Authorized Service Outlet any TecumsehPower Registered Service Dealer TecumsehPower Authorized Service Distributor or TecumsehPower Central Warehouse Distributor as soon as a...

Page 23: ...led replacement the part shall be repaired or replaced by TecumsehPower Company according to Subsection 4 below Any such emissions related part repaired or replaced under the ECS Warranty shall be war...

Page 24: ...gine model number on the Important Engine Information decal One letter in the engine model number will be surrounded by parenthesis A B C D E H K or M and that letter is your engine warranty category...

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