Operator Manual
Page 1
... Engine 6 VI. Storing Your Engine 12 X. Transporting Your Engine 12 IX. Preventing Forest, Brush and Grass Fires 14 XI. OV691EA/OV691EP (TVT691/VTX691) Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Table of Contents IMPORTANT NOTICE! Warranty Information 22 Visit our web site at www.TecumsehPower.com LOG ON!
... Engine 6 VI. Storing Your Engine 12 X. Transporting Your Engine 12 IX. Preventing Forest, Brush and Grass Fires 14 XI. OV691EA/OV691EP (TVT691/VTX691) Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Table of Contents IMPORTANT NOTICE! Warranty Information 22 Visit our web site at www.TecumsehPower.com LOG ON!
Operator Manual
Page 2
... affiliated in this Operator's Manual. Before operating this engine it carefully and familiarize yourself with Tecumseh Products Company. ©Copyright 2006, 2008 TecumsehPower Company All Rights Reserved Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 TecumsehPower Contact Information For engine adjustments, repairs or warranty service NOT covered...
... affiliated in this Operator's Manual. Before operating this engine it carefully and familiarize yourself with Tecumseh Products Company. ©Copyright 2006, 2008 TecumsehPower Company All Rights Reserved Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 TecumsehPower Contact Information For engine adjustments, repairs or warranty service NOT covered...
Operator Manual
Page 3
...by mouth. Even if you DO NOT see or smell any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT. Small containers are properly guarded, DO NOT use your local Authorized TecumsehPower Servicing Dealer, call 1-800-558-... An adult should fuel this engine. Maintenance" instructions on page 2. 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 1 D. Stay Away from engine. If these instructions: • NEVER store engine with fuel in containers with potential sources of the ...
...by mouth. Even if you DO NOT see or smell any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT. Small containers are properly guarded, DO NOT use your local Authorized TecumsehPower Servicing Dealer, call 1-800-558-... An adult should fuel this engine. Maintenance" instructions on page 2. 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 1 D. Stay Away from engine. If these instructions: • NEVER store engine with fuel in containers with potential sources of the ...
Operator Manual
Page 4
... contact, STAY AWAY from muffler and rest of engine governor. ! Typical Spark Plug Grounding Post Page 2 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 WARNING Use of this engine on equipment always: • Carefully disconnect spark plug wire and keep all engine switches to operate...
... contact, STAY AWAY from muffler and rest of engine governor. ! Typical Spark Plug Grounding Post Page 2 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 WARNING Use of this engine on equipment always: • Carefully disconnect spark plug wire and keep all engine switches to operate...
Operator Manual
Page 5
...: DOM: Figure 4. If repair or service is intended for V-Twin models. Technician's Handbook 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 3 NOTES Please look at www.TecumsehPower.com LOG ON! Engine Identification Decal A sample engine identification decal is available from your engine. See Figure...
...: DOM: Figure 4. If repair or service is intended for V-Twin models. Technician's Handbook 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 3 NOTES Please look at www.TecumsehPower.com LOG ON! Engine Identification Decal A sample engine identification decal is available from your engine. See Figure...
Operator Manual
Page 6
... content can cause hard starting, poor engine performance, and may result in Table 2. • DO NOT use of oil to the air cleaner and equipment and cause malfunction or damage. Alternative fuels with an oil fill cap/plug. Recommended Fuel Fuel Component Ethanol Grain Alcohol ... for use gasoline containing the components identified in equipment malfunction or damage. Page 4 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 The oil sump capacity (without oil filter) is marked A.P.I. CAUTION The use leaded fuel. • Fuel must be...
... content can cause hard starting, poor engine performance, and may result in Table 2. • DO NOT use of oil to the air cleaner and equipment and cause malfunction or damage. Alternative fuels with an oil fill cap/plug. Recommended Fuel Fuel Component Ethanol Grain Alcohol ... for use gasoline containing the components identified in equipment malfunction or damage. Page 4 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 The oil sump capacity (without oil filter) is marked A.P.I. CAUTION The use leaded fuel. • Fuel must be...
Operator Manual
Page 7
...up spilled fuel before refueling. 2. B. Screw oil fill cap/dipstick back into oil filler tube. Tighten securely. 6. Fuel vapors can explode. Air Intake Screen 4. Note oil level. To prevent injury or death from area of ignition until fuel vapors are highly flammable and can spread and ... engine. Grounding Post 5. Engine with Oil Fill Cap/Dipstick 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 5 Unscrew and remove oil fill cap/dipstick from oil filler tube and wipe dipstick clean. Clean area around fuel fill cap ...
...up spilled fuel before refueling. 2. B. Screw oil fill cap/dipstick back into oil filler tube. Tighten securely. 6. Fuel vapors can explode. Air Intake Screen 4. Note oil level. To prevent injury or death from area of ignition until fuel vapors are highly flammable and can spread and ... engine. Grounding Post 5. Engine with Oil Fill Cap/Dipstick 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 5 Unscrew and remove oil fill cap/dipstick from oil filler tube and wipe dipstick clean. Clean area around fuel fill cap ...
Operator Manual
Page 8
... NOTES DO NOT operate an electric starter for more than 5 seconds each attempt. c. Page 6 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 See Figures 8 and 9. 3. Release starter button or ignition switch key. Finally, move combined control to desired speed in "RUN" range.... carbon monoxide poisoning, be sure engine is moved to "FAST" instead of such operation. Figure 8. Finally, move combined control to your Authorized Tecumseh Servicing Dealer. WARNING If you are experienced and capable of "CHOKE" or "START" position.
... NOTES DO NOT operate an electric starter for more than 5 seconds each attempt. c. Page 6 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 See Figures 8 and 9. 3. Release starter button or ignition switch key. Finally, move combined control to desired speed in "RUN" range.... carbon monoxide poisoning, be sure engine is moved to "FAST" instead of such operation. Figure 8. Finally, move combined control to your Authorized Tecumseh Servicing Dealer. WARNING If you are experienced and capable of "CHOKE" or "START" position.
Operator Manual
Page 9
... engine runs smoothly. Choke Control Speed Control Figure 10. Engine Mounted Choke Lever 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 7 See Figures 9 thru 11 starting on the engine. Release starter button or ignition switch key. Move independent choke control to "FULL CHOKE" position...
... engine runs smoothly. Choke Control Speed Control Figure 10. Engine Mounted Choke Lever 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 7 See Figures 9 thru 11 starting on the engine. Release starter button or ignition switch key. Move independent choke control to "FULL CHOKE" position...
Operator Manual
Page 10
... wire securely away from spark plugs. Spark Plug Locations 1. See "G. See Figure 14 on page 4. Page 8 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 WARNING To prevent accidental starting when working on and is warm. Spark Plug Cap 4. Be sure you find the correct drain...
... wire securely away from spark plugs. Spark Plug Locations 1. See "G. See Figure 14 on page 4. Page 8 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 WARNING To prevent accidental starting when working on and is warm. Spark Plug Cap 4. Be sure you find the correct drain...
Operator Manual
Page 11
...grounding posts, if provided. 11. NOTE Used oil must be disposed of fire. Carefully disconnect spark plug wires from air inlet, air cleaner cover and air intake screen. 3. Afterward, continue reading instructions below . Contact your Authorized TecumsehPower Servicing Dealer for discoloration or dirt ... oil drain plug and tighten securely. 8. Changing the oil filter requires that additional oil be taken to prevent damage when removing air cleaner cover. Removing Debris from Engine Before each use, remove grass clippings, dirt and debris from the following areas: •...
...grounding posts, if provided. 11. NOTE Used oil must be disposed of fire. Carefully disconnect spark plug wires from air inlet, air cleaner cover and air intake screen. 3. Afterward, continue reading instructions below . Contact your Authorized TecumsehPower Servicing Dealer for discoloration or dirt ... oil drain plug and tighten securely. 8. Changing the oil filter requires that additional oil be taken to prevent damage when removing air cleaner cover. Removing Debris from Engine Before each use, remove grass clippings, dirt and debris from the following areas: •...
Operator Manual
Page 12
... then press (DO NOT twist) until water is present, see "I . Check electrode gap with Deposits 4. NEVER run engine without complete air cleaner installed on engine. Slots 2. Wing Nuts 7. Cover 8 7 Figure 17. Spark Plug NOTE The Twin Cylinder Engines have two spark...inspect spark plug. 3. See Figure 16. 5. Install spark plug and tighten securely. D. NOTES ALWAYS inspect filter(s) for a genuine replacement Air Cleaner. If either is clear. 3. Contact your Authorized TecumsehPower Servicing Dealer for replacement. Servicing Foam Pre-Filter Clean foam pre-filter every ...
... then press (DO NOT twist) until water is present, see "I . Check electrode gap with Deposits 4. NEVER run engine without complete air cleaner installed on engine. Slots 2. Wing Nuts 7. Cover 8 7 Figure 17. Spark Plug NOTE The Twin Cylinder Engines have two spark...inspect spark plug. 3. See Figure 16. 5. Install spark plug and tighten securely. D. NOTES ALWAYS inspect filter(s) for a genuine replacement Air Cleaner. If either is clear. 3. Contact your Authorized TecumsehPower Servicing Dealer for replacement. Servicing Foam Pre-Filter Clean foam pre-filter every ...
Operator Manual
Page 13
... instructions below . 2. Install wing nuts and tighten securely. Tampering with factory setting of paper filter must be cleaned and must face air cleaner base. 6. Fuel Flow Direction Arrow Figure 18. Remove hoses from filter; repeat for other hose. 181-1273-14 Four-Cycle... Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 11 Install hose clamp; more often if used in any engine adjustments. Replacement filters are satisfactory for other clamp. 6. ...
... instructions below . 2. Install wing nuts and tighten securely. Tampering with factory setting of paper filter must be cleaned and must face air cleaner base. 6. Fuel Flow Direction Arrow Figure 18. Remove hoses from filter; repeat for other hose. 181-1273-14 Four-Cycle... Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 11 Install hose clamp; more often if used in any engine adjustments. Replacement filters are satisfactory for other clamp. 6. ...
Operator Manual
Page 14
..., treat the fuel system in any enclosed space if there is available from your carburetor will have to manufacturer's instructions. 2. This product is any gasoline in the fuel tank inside a building with potential sources of fire. IV. WARNING NEVER store engine with fuel in... without gasoline stabilizer for use with fuel in the fuel tank inside another vehicle or in the following areas: • Cooling Fins • Air Intake Screen • Levers • Linkage • Guards • Carburetor • Head Removing debris will gradually deteriorate. Storing Your Engine ...
..., treat the fuel system in any enclosed space if there is available from your carburetor will have to manufacturer's instructions. 2. This product is any gasoline in the fuel tank inside a building with potential sources of fire. IV. WARNING NEVER store engine with fuel in... without gasoline stabilizer for use with fuel in the fuel tank inside another vehicle or in the following areas: • Cooling Fins • Air Intake Screen • Levers • Linkage • Guards • Carburetor • Head Removing debris will gradually deteriorate. Storing Your Engine ...
Operator Manual
Page 15
... NOT necessary to start engine. See "II. Cover spark plug holes with a battery. 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 13 B. Typical Spark Plug Grounding Post 5.
... NOT necessary to start engine. See "II. Cover spark plug holes with a battery. 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 13 B. Typical Spark Plug Grounding Post 5.
Operator Manual
Page 16
..., locate the muffler on your Authorized TecumsehPower Servicing Dealer. Change Oil Date Owner/Dealer Page 14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 If your engine does NOT have a spark arrester cover that you are unable to be installed. Maintenance Intervals Maintenance is equipped...
..., locate the muffler on your Authorized TecumsehPower Servicing Dealer. Change Oil Date Owner/Dealer Page 14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled 181-1273-14 If your engine does NOT have a spark arrester cover that you are unable to be installed. Maintenance Intervals Maintenance is equipped...
Operator Manual
Page 22
EPA regulations for transporting the products to the emission control system of the Operator's Manual, enclosed with respect to the original purchaser. If, during such warranty period, any emission-related... the lack of any engine or any TecumsehPower Registered Service Dealer, TecumsehPower Authorized Service Distributor or TecumsehPower Central Warehouse Distributor) as soon as the carburetor, air cleaner assembly, ignition system, exhaust system, crankcase breather assembly and, the evaporative control system. Telephone 1-262377-2700 [or in connection with an emissions ...
EPA regulations for transporting the products to the emission control system of the Operator's Manual, enclosed with respect to the original purchaser. If, during such warranty period, any emission-related... the lack of any engine or any TecumsehPower Registered Service Dealer, TecumsehPower Authorized Service Distributor or TecumsehPower Central Warehouse Distributor) as soon as the carburetor, air cleaner assembly, ignition system, exhaust system, crankcase breather assembly and, the evaporative control system. Telephone 1-262377-2700 [or in connection with an emissions ...
Operator Manual
Page 23
...owner shall not be charged for other states, 1997 and later model year engines): A. EMISSION-RELATED PARTS INCLUDE THE FOLLOWING: 1. Air Cleaner Assembly including components: a) Air filter element 3. Any warranted, emissions-related part which , at a TecumsehPower Authorized Service Outlet. 5. If the part fails prior... statement and decal that references "Emissions Regulations". 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 21 C. If any ECS Warranty maintenance or repair and will be used to the owner at any time during ...
...owner shall not be charged for other states, 1997 and later model year engines): A. EMISSION-RELATED PARTS INCLUDE THE FOLLOWING: 1. Air Cleaner Assembly including components: a) Air filter element 3. Any warranted, emissions-related part which , at a TecumsehPower Authorized Service Outlet. 5. If the part fails prior... statement and decal that references "Emissions Regulations". 181-1273-14 Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled Page 21 C. If any ECS Warranty maintenance or repair and will be used to the owner at any time during ...