Automobile Parts User Manual
Table Of Contents
- I. Safety Definitions
- II. Notice Regarding Emissions
- III. Tecumseh Contact Information
- I. Use this Engine Only in Approved Applications
- II. Special Information for Users Installing an Engine
- III. Engine Model Applications
- I. General Safety Precautions
- II. How to Get Service
- III. Oil and Fuel Specifications
- IV. Before Starting Your Engine
- A. Engine Pre-Ride Checklist
- 1. Fuel cap-Check that the anti-splash fuel fill cap is securely in place.
- 2. Guards-Check that all of the guards are securely in place. NEVER operate the vehicle if you think there may be a guard missin...
- 3. Debris-Check that engine, controls and guards are free from debris, snow or ice. For debris removal areas, see "B. Removing Debris From Engine" instructions on page 20.
- 4. Throttle-With the engine off, check that the gas pedal operates smoothly and returns to an idle position when released.
- 5. Idle speed-Be sure that operator is in place with the brake engaged before starting the engine. Start the engine and slowly r...
- 6. Engine stop switches-Check that the operator knows where all engine stop switches are located. Check that all engine stop switches immediately stop the engine. For stop switch locations, see Figure 13 on page 8.
- Figure 7. Incorrect Usage Without Engine Shaft Guard
- Figure 8. Engine Guard Locations
- Figure 9. Debris Removal Areas
- B. Checking Oil Level
- NOTES
- I. Oil Fill Dipstick
- 1. Be sure engine is upright and level.
- 2. Unscrew oil fill dipstick from oil filler tube and wipe clean.
- 3. Screw oil fill dipstick back into oil filler tube. Tighten securely.
- 4. Unscrew and remove oil fill dipstick from oil filler tube. Note oil level. If oil reading on dipstick is below “ADD” mark, slowly add oil to reach “FULL” level. See Figure 10.
- 5. Screw oil fill dipstick back into oil filler tube. Tighten securely.
- 6. Wipe away any spilled oil.
- II. Oil Fill Cap Without Dipstick (Oil fill Plug)
- 1. Be sure engine is upright and level.
- 2. Clean area around oil fill plug(s). See Figure 12.
- 3. Unscrew oil fill plug.
- 4. Add oil to overflow point, making sure to avoid spilling.
- 5. Screw oil fill plug back into oil fill hole. Tighten securely.
- 6. Wipe away any spilled oil.
- Figure 10. Engine Oil Level
- Figure 11. Possible Oil Fill Dipstick Location
- Figure 12. Possible Oil Fill Plug Location(s)
- C. Engine Stop Switch
- D. Filling Fuel Tank
- 1. Stop engine and allow it to cool before refueling.
- 2. Be sure engine is outdoors and in a well-ventilated area.
- 3. Clean area around fuel fill cap and remove anti-splash fuel fill cap. See Figure 14.
- Figure 13. Engine Stop Switch
- Figure 14. Possible Fuel Fill Cap Location(s)
- 4. Using an approved red GASOLINE container, add fuel slowly, being careful to avoid spilling. DO NOT overfill fuel tank. Leave space in the tank to allow fuel to expand without overflowing. See "B. Fuel" instructions on page 5.
- 5. Replace anti-splash fuel fill cap securely and wipe up spilled fuel before starting engine. If fuel is spilled DO NOT start engine. Move machine away from area of spillage. Avoid creating any source of ignition until fuel vapors are gone.
- E. Optional Fuel Valve
- A. Engine Pre-Ride Checklist
- V. Starting Your Engine
- NOTE
- 1. Oil Fill Plug
- 2. Carburetor
- 3. Air Cleaner
- 4. Muffler
- 5. Muffler Guard
- 6. Oil Fill Dipstick
- 7. Spark Plug Cap
- 8. Fuel Fill Cap
- 9. On/Off Switch
- 10. Recoil Starter/Flywheel Guard
- 11. Starter Cord Handle
- 12. Levers/Linkage
- 13. Fuel Shut-Off Valve (If provided)
- 14. Primer
- Table 4. Model Assemblies
- Figure 18. LH318EA (HM80-90), LH358EA (HM100) Model
- Figure 19. OH195EA/OH195EP Model
- Figure 20. OH318EA
- A. Engines with Electric Starters
- Table 5. Engines with Electric Starters
- I. Engine With Primer Bulb
- 1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.See Figure 20.
- 2. Be sure fuel valve is open, if provided. See Figure 21.
- 3. When starting a cold engine, push primer bulb firmly with your thumb 3 times, allowing primer bulb to return completely to original position between pushes. See Figure 22.
- 4. Push starter button or turn ignition switch key to start engine.
- 5. When engine starts, release starter button or ignition switch key.
- 6. If engine fails to start after 3 attempts, repeat steps 2 thru 4.
- 7. If engine does not start after following steps 1 thru 6, contact your Authorized Tecumseh Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.
- Figure 21. Optional Fuel Valve
- Figure 22. OH195EA/OH195EP Engine Primer Bulb
- II. Engine with Choke
- 1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.
- 2. Be sure fuel valve is open, if provided. See Figure 21.
- 3. Move Choke Control to “FULL CHOKE” position.
- Figure 23. Horizontal Mount Choke Control Positions
- Figure 24. Remote Choke Control Positions
- Figure 25. OH195EA/OH195EP Choke Control Positions
- NOTES
- 4. Push starter button or turn ignition switch key to start engine.
- 5. When engine starts:
- a. Release starter button or ignition switch key.
- b. Momentarily move Choke Lever to “1/2 CHOKE” position until engine runs smoothly.
- c. Next, move Choke Lever to “NO CHOKE” position.
- a. Momentarily move Choke Lever back to “FULL CHOKE” position.
- b. Next, move Choke Lever to “1/2 CHOKE” position until engine runs smoothly.
- c. Finally, move Choke Lever to “NO CHOKE” position.
- 6. If engine dies after Choke Lever is moved to “NO CHOKE” position, repeat steps 2 thru 5 to restart engine.
- 7. If engine fires, but does not continue to run, move Choke Lever to “NO CHOKE” position and start engine.
- 8. If engine fails after 3 attempts in the “NO CHOKE” position, repeat steps 2 thru 7 to restart engine.
- 9. If engine does not start after following steps 1 thru 8, contact your Authorized Tecumseh Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.
- Figure 26. OH318EA Choke Control Positions
- Figure 27. Engine Speed Control Positions
- B. Engines with Recoil Starters
- I. Engine With Primer Bulb
- Table 6. Engines with Recoil Starters
- 1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.
- 2. Be sure fuel valve is open, if provided. See Figure 28.
- 3. When starting a cold engine, push primer bulb firmly with your thumb 3 times, allowing primer bulb to return completely to original position between pushes. See Figure 29.
- 4. Grasp starter cord handle. See Figure 30.
- 5. If engine fails to start after 3 attempts, repeat steps 2 thru 4.
- 6. If engine does not start after following steps 1 thru 5, contact your Authorized Tecumseh Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.
- Figure 28. Optional Fuel Valve
- Figure 29. OH195EA/OH195EP Engine Primer Bulb
- Figure 30. Starter Cord Handle
- Table 6. Engines with Recoil Starters
- II. Engine With Choke
- 1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.
- 2. Be sure fuel valve is open, if provided. See Figure 28 on page 15.
- 3. Move Choke Control to “FULL CHOKE” position.
- Figure 31. Horizontal Mount Choke Control Positions
- Figure 32. Remote Choke Control Positions
- Figure 33. OH195EA/OH195EP Choke Control Positions
- NOTES
- 4. Grasp starter cord handle. See Figure 30 on page 15.
- 5. When engine starts:
- a. Momentarily move Choke Lever to “1/2 CHOKE” position until engine runs smoothly.
- b. Next, move Choke Lever to “NO CHOKE” position.
- a. Momentarily move Choke Lever back to “FULL CHOKE” position.
- b. Next, move Choke Lever to “1/2 CHOKE” position until engine runs smoothly.
- c. Finally, move Choke Lever to “NO CHOKE” position.
- 6. If engine dies after Choke Lever is moved to “NO CHOKE” position, repeat steps 2 thru 5 to restart engine.
- 7. If engine fires, but does not continue to run, move Choke Lever to ’NO choke” position and start engine.
- 8. If engine fails after 3 attempts in the “NO CHOKE” position, repeat steps 2 thru 7 to restart engine.
- 9. If engine does not start after following steps 1 thru 8, contact your Authorized Tecumseh Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.
- Figure 34. OH318EA Choke Control Positions
- Figure 35. Engine Speed Control Positions
- I. Engine With Primer Bulb
- VI. Stopping Your Engine and Short-Term Storage
- VII. Transporting Your Recreational Vehicle
- VIII. Maintenance
- Figure 36. Disconnecting/Connecting Spark Plug
- Figure 37. Spark Plug Grounding Post
- A. Checking and Changing Oil
- 1. Be sure you find the correct drain plug location, if provided. See Figure 38.
- 2. Disconnect spark plug wire and keep it away from spark plug. See "G. Avoid Accidental Starts" instructions on page 3. See Figure 36.
- 3. Be sure the gas cap is on and is tightened securely.
- 4. Clean area around oil drain plug.
- 5. Place approved recyclable oil container under oil drain plug, tipping engine to position the oil drain plug at the lowest point on the engine.
- 6. Remove oil drain plug and drain oil. See Figure 38.
- 7. Install oil drain plug and tighten securely.
- 8. Fill with recommended oil. See "III. Oil and Fuel Specifications" instructions on page 5. See Table 1 and see Table 2 on page 5. See Figure 39.
- 9. Wipe away any spilled oil.
- 10. Carefully disconnect spark plug wire from grounding post, if provided. See Figure 37.
- 11. Carefully re-connect spark plug wire to spark plug. See Figure 36.
- Figure 38. Possible Oil Drain Plug Location(s)
- Figure 39. Possible Oil Fill Plug Location(s)
- B. Removing Debris From Engine
- C. Spark Plug
- 1. Clean area around spark plug.
- 2. Remove and inspect spark plug.
- 3. Replace spark plug if porcelain is cracked or if electrodes are:
- 4. Check electrode gap with wire feeler gauge and set gap to .030 in. (0.76mm) if necessary. See Figure 41.
- 5. Install spark plug and tighten securely.
- Figure 40. Debris Removal Areas
- Figure 41. Resistor Spark Plug
- D. Cleaning/Replacing Air Cleaner
- E. Type “A” Air Cleaner
- 1. Loosen cover screws. See Figure 42.
- 2. Turn cover counterclockwise and remove from base.
- 3. Remove optional foam pre-filter, if provided, from cover. Inspect for dirt or debris accumulation. If either is present see "I. Servicing Foam Pre-Filters" instructions.
- 4. Remove paper filter from base. Inspect filters for discoloration or dirt accumulation. If either is present, see "II. Servicing Paper Filters" instructions.
- 5. Clean inside of base and cover thoroughly.
- 6. Install new paper element into base.
- 7. Install optional foam pre-filter into cover.
- 8. Turn cover clockwise and attach to base.
- 9. Tighten screws securely.
- F. Type “B” Air Cleaner
- 1. Turn cover to left (counterclockwise) and remove it and paper filter from base. See Figure 43.
- 2. Discard filter.
- 3. Clean cover and base thoroughly.
- 4. Install new paper filter into cover.
- 5. Position clean cover and filter against base with tab on cover inserted into lower left corner of slot in base.
- 6. Push cover firmly against base and turn to right (clock wise) as far as it will go.
- 7. Be sure retainers are locked around base.
- G. Type “C” Air Cleaner
- 1. Remove wing nut. See Figure 44.
- 2. Remove cover and clean thoroughly.
- 3. Remove foam pre-filter, if provided, from outside of paper filter. Inspect for dirt or debris accumulation. If either is present see "I. Servicing Foam Pre-Filters" instructions on page 21.
- 4. Remove paper filter element from base. Inspect filters for discoloration or dirt accumulation. If either is present, see "II. Servicing Paper Filters" instructions on page 21.
- 5. Clean inside of base and cover thoroughly.
- 6. Install clean paper filter element onto base.
- 7. Install clean foam pre-filter, if provided, over paper element.
- 8. Install clean cover over filters.
- 9. Install wing nut and tighten securely.
- Figure 43. Type “B” Air Cleaner Assembly
- Figure 44. Type “C” Air Cleaner Assembly
- H. Climate Guard® Anti-Icing Air Cleaners
- I. Type “D” Air Cleaner
- 1. Remove wing nut and cover. See Figure 45.
- 2. Remove foam pre-filter, if provided, from cover. Inspect for dirt or debris accumulation. If either is present see "I. Servicing Foam Pre-Filters" instructions on page 21.
- 3. Remove paper element from base. Inspect for dirt or debris accumulation. If either is present see "II. Servicing Paper Filters" instructions on page 21.
- 4. Clean inside of base and cover thoroughly.
- 5. Install clean paper element into base.
- 6. Install clean foam pre-filter, if provided, into cover.
- 7. Install cover on base.
- 8. Install wing nut and tighten securely.
- A. At temperatures of 32F (0C) and Below
- B. At temperatures above 32F (0C)
- 1. Remove wing nut from air cleaner cover. See Figure 45.
- 2. Remove air cleaner cover from base.
- 3. Remove red baffle from inside of air cleaner cover.
- 4. Insert red baffle in “SUMMER” position shown.
- 5. Install air cleaner cover onto base.
- 6. Install wing nut and tighten securely.
- Figure 45. Type “D” Climate Guard Air Cleaner Assembly
- II. Type “E” Air Cleaner
- 1. Remove wing nuts and air cleaner cover.
- 2. Remove foam pre-filter from paper filter, if provided, and inspect for dirt or debris accumulation. If either is present see "I. Servicing Foam Pre-Filters" instructions on page 21.
- 3. Remove paper filter from base and inspect for dirt or debris accumulation. If either is present see "II. Servicing Paper Filters" instructions on page 21.
- 4. Clean inside of base and air cleaner cover thoroughly.
- 5. Install paper filter into base.
- 6. Install foam filter onto paper filter.
- 7. Install air cleaner cover on base.
- 8. Install wing nuts and tighten securely.
- A. At temperatures of 32F (0C) and Below
- B. At temperatures above 32F (0C)
- I. Type “D” Air Cleaner
- I. Alternator (Optional)
- J. Adjustments
- IX. Storing Your Engine
- A. Short Term/Seasonal Storage
- B. Extended Storage
- I. Draining Fuel
- NOTES
- 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.
- 3. Begin servicing the cylinder bore. See "II. Oil Cylinder Bore" instructions on page 27.
- II. Oil Cylinder Bore
- III. Battery
- IV. Clean Engine
- I. Draining Fuel
- X. Preventing Forest, Brush and Grass Fires
- XI. Maintenance Intervals
- XII. Warranty Information