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IV. Before Starting Your Engine

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B. Fuel Use unleaded regular, unleaded premium or reformulated automotive fuel only. You may use gasoline containing the following components identified in Table 2. • DO NOT use leaded fuel. • Fuel must be fresh and clean. NEVER use fuel left over from last season or stored for long periods. • NEVER mix oil with fuel. • DO NOT use fuel containing Methanol (Wood Alcohol). Table 2. Recommended Fuel Fuel Component Ethanol Grain Alcohol ("Gasohol") MTBE (Methyl Tertiary Butyl Ether) ETBE (Ethyl Tertiary Butyl Ether) Percentage 10% 10% 15% 15% 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 hours when engine is warm. Check oil level more frequently during engine break-in. • Keep oil level between "FULL" and "ADD" marks on dipstick. See Figure 6. • Be sure oil fill cap is tightened securely. NOTES Do not overfill oil filler. Doing so may result in oil carry-over to the air cleaner and equipment malfunction or damage. Do not allow oil level to fall below the "ADD" mark on dipstick. Doing so may result in equipment malfunction or damage. Contact your Authorized Tecumseh Servicing Dealer for Tecumseh Oil. B. Filling Oil Sump Oil Fill Cap With Dipstick 1. Be sure engine is upright and level. 2. Unscrew oil fill cap from oil filler tube and wipe dipstick clean. See Figure 7. 3. Screw oil fill cap back into oil filler tube. Tighten securely. 4. Unscrew and remove oil fill cap 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 6. 5. Screw oil fill cap back into oil filler tube. Tighten securely. 6. Wipe away any spilled oil. FULL OK ADD Fill between "Full" and "ADD" Marks Figure 6. Engine Oil Level 4 3 5 2 6 7 1 10 1. Spark Plug Cap 2. Spark Plug Wire 3. Oil Fill Cap 4. Start Cord Handle 5. Fuel Fill Cap 6. Choke Control 7. Primer 8. Carburetor 9. Engine Speed Control 10.Muffler 8 9 Figure 7. LV (VSK) Engine Assembly Page 4 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled 181-1270-14

Section	Page
LV148SA (VSK90)	1
Four-Cycle Engine . Vertical Crankshaft . Air-Cooled	1
181-1270-14	1
(English) 1/01/08	1
IMPORTANT NOTICE!	2
Safety Definitions	2
Notice Regarding Emissions	2
Tecumseh Contact Information	2
I. General Safety Precautions	3
A. Avoid Carbon Monoxide Poisoning	3
B. Avoid Gasoline Fires	3
C. Adult Supervision of Operation, Refueling and Maintenance	3
D. Stay Away from Rotating Parts	3
E. Do Not Modify Engine	4
F. Avoid Burns and Fire from Hot Surfaces	4
G. Avoid Accidental Starts	4
H. Use Hearing Protection	4
Figure 1. DO NOT Use Without Flywheel Guard	4
Figure 2. Disconnecting/Connecting Spark Plug	4
1. Grounding Post	4
2. Spark Plug Wire	4
3. Spark Plug	4
Figure 3. Spark Plug Connection	4
II. How to Get Service	5
A. Engine Identification Decal	5
B. Tecumseh Technician’s Handbooks	5
III. Oil and Fuel Specifications	5
A. Oil	5
Figure 4. Engine Identification Label	5
Figure 5. Technician’s Handbook	5
Table 1. Recommended Engine Oil	5
B. Fuel	6
IV. Before Starting Your Engine	6
A. Checking Oil Level	6
B. Filling Oil Sump	6
1. Be sure engine is upright and level.	6
2. Unscrew oil fill cap from oil filler tube and wipe dipstick clean. See Figure 7.	6
3. Screw oil fill cap back into oil filler tube. Tighten securely.	6
4. Unscrew and remove oil fill cap 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 6.	6
5. Screw oil fill cap back into oil filler tube. Tighten securely.	6
6. Wipe away any spilled oil.	6
Table 2. Recommended Fuel	6
10%	6
10%	6
15%	6
15%	6
Figure 6. Engine Oil Level	6
1. Spark Plug Cap	6
2. Spark Plug Wire	6
3. Oil Fill Cap	6
4. Start Cord Handle	6
5. Fuel Fill Cap	6
6. Choke Control	6
7. Primer	6
8. Carburetor	6
9. Engine Speed Control	6
10. Muffler	6
Figure 7. LV (VSK) Engine Assembly	6
C. Filling Fuel Tank	7
1. Stop engine and allow it to cool before refueling.	7
2. Be sure engine is outdoors and in a well-ventilated area.	7
3. Clean area around fuel fill cap and remove fuel fill cap. See Figure 7.	7
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.	7
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.	7
6. Be sure fuel valve (optional) is open. See Figure 10.	7
D. Check the Following Equipment	7
1. Be sure ignition switch on engine or equipment is in “ON”, “RUN” or “START” position.	7
2. Be sure fuel valve, if present (see manufacturer’s instructions), is open. Turn counterclockwise to “ON” position. See Figure 10.	7
3. Check engine and equipment before each operation for loose nuts, bolts and attachments; keep these items tightened.	7
Figure 8. Fuel Cap Insert Symbol	7
Figure 9. Possible Anti-Splash Fuel Fill Cap(s)	7
Figure 10. Fuel Valve Positions	7
V. Starting Your Engine	8
1. To avoid carbon monoxide poisoning, make sure engine is outdoors in a well-ventilated area.	8
2. Be sure fuel valve, if present is open and all switches are on. Turn counterclockwise to “ON”. See Figure 10.	8
3. Move Engine Speed Control to “FAST” position. See Figures 11 and 12.	8
4. Set Choke Control to “FULL” position. See Figures 11 and 15.	8
5. Push primer three times, making sure to cover vent hole when pushing. See Figure 13.	8
Figure 11. Typical Engine Symbols	8
1. Fast Position	8
2. Slow Position	8
3. OFF Position	8
Figure 12. Engine Speed Control	8
1. Primer Bulb	8
2. Vent Hole	8
Figure 13. Primer Bulb	8
6. Grasp starter cord handle. See Figure 14.	9
a. Pull rope out slowly until you feel drag.	9
b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke.	9
c. Return rope slowly to original position.	9
a. Pull as much rope out of starter as possible.	9
b. Release starter handle and let it snap back against starter to break up ice; these two steps should only be done when starter is frozen.	9
7. If engine fails to start after 3 attempts repeat steps 2 thru 7 and try again.	9
8. When engine starts:	9
a. Move Choke Control to “1/2 CHOKE” position until engine runs smoothly.	9
b. Next, move Choke Control to “NO CHOKE” position. See Figures 12 and 15.	9
9. Move Engine Speed Control to desired speed in “RUN” range.	9
a. Momentarily move Choke Control back to “FULL CHOKE” position.	9
b. Next, move Choke Control to “1/2 CHOKE” position until engine runs smoothly.	9
c. Finally, move Choke Control to “NO CHOKE” position. See Figures 12 and 15.	9
10. If engine fires but does not continue to run, move choke control to “NO CHOKE” position and start engine. See Figure 15.	9
11. If engine fails to start after 3 attempts in the “NO CHOKE” position, move choke control to “FULL CHOKE” position and start engine.	9
12. If engine does not start after following steps 1 thru 11, contact your Authorized Tecumseh Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	9
Figure 14. Recoil Starter Cord Handle	9
1. No Choke	9
2. 1/2 Choke	9
3. Full Choke	9
Figure 15. Choke Control Positions	9
VI. Stopping Your Engine and Short-Term Storage	10
A. Before Stopping	10
1. Run engine for a few minutes to help dry off any moisture on engine.	10
2. To help avoid possible freeze-up of starter proceed as follows:	10
B. Stop Engine	10
1. Move equipment control, if present (see manufacturer’s instructions), engine control lever or ignition switch to “STOP” or “OFF” position.	10
2. Remove ignition key, if present.	10
C. After Engine is Stopped	10
1. Wipe all snow and moisture from engine area of control lever and choke.	10
2. Move equipment control, if present (see manufacturer’s instructions), engine control lever or ignition switch back and forth several times and leave control in “STOP” or “OFF” position. See Figure 16.	10
3. Move engine choke back and forth several times and leave in the “FULL” position. See Figure 17.	10
4. Close fuel valve, if present. See Figure 18.	10
1. Fast Position	10
2. Slow Position	10
3. OFF Position	10
Figure 16. Engine Speed Control	10
1. No Choke	10
2. 1/2 Choke	10
3. Full Choke	10
Figure 17. Choke Control Positions	10
Figure 18. Fuel Valve Positions	10
VII. Maintenance	11
A. Checking and Changing Oil	11
1. Be sure you find the correct drain plug location, if present. (See equipment manufacturer’s instructions).	11
2. Disconnect spark plug wire and keep it away from spark plug by attaching it securely to grounding post. See Figure 20.	11
3. Ensure the gas cap is on and is tightened securely.	11
4. Carefully turn engine on the side with the carburetor side up. See Figure 21.	11
5. Place approved recyclable oil container under oil cap/ dipstick.	11
6. Remove oil fill cap/dipstick.	11
7. Drain oil into an approved container.	11
8. Clean area around oil fill tube and fill cap.	11
9. Place engine back onto a level upright position with the wheels touching the ground.	11
10. Fill with recommended oil. See Table 1. on page 3.	11
11. Wipe away any spilled oil.	11
Figure 19. Disconnecting/Connecting Spark Plug	11
1. Grounding Post	11
2. Spark Plug Wire	11
3. Spark Plug	11
Figure 20. Spark Plug Connection	11
1. Oil Drain/Fill Opening	11
2. Drain Pan	11
Figure 21. Draining Oil Sump	11
12. Carefully remove spark plug wire from grounding post and connect to spark plug. See Figure 19.	11
B. Removing Snow from Engine	12
C. Spark Plug	12
1. Clean area around spark plug.	12
2. Remove and inspect spark plug.	12
3. Replace spark plug if porcelain is cracked or if electrodes are:	12
4. Check electrode gap with wire feeler gauge and set gap to .030 (0.76mm) if necessary. See Figure 23.	12
5. Install spark plug and tighten securely.	12
D. Alternator (Optional)	12
E. Carburetor	12
F. Engine Speed	12
1. Oil Fill Cap	12
2. Fuel Fill Cap	12
3. Linkage	12
4. Cooling Fins	12
Figure 22. Snow Removal Locations	12
1. .030 (0.76 mm) Gap	12
2. Electrodes	12
3. Porcelain	12
Figure 23. Resistor Spark Plug	12
G. Adjustments	12
VIII. Transporting Your Engine	13
1. Empty fuel tank by using a commercially available suction device designed for use with gasoline.	13
2. Drain fuel into an approved red GASOLINE container, being careful to avoid spilling.	13
3. Run the engine until remaining fuel is consumed.	13
IX. Storing Your Engine	13
A. Short Term/Seasonal Storage	13
I. Clean Engine	13
II. Fuel Storage	13
III. Fuel System	13
IV. Fuel Treatment	13
1. Add fuel stabilizer according to manufacturer’s instructions.	13
2. Run engine at least 10 minutes after adding stabilizer to allow it to reach carburetor.	13
B. Extended Storage	14
I. Draining Fuel	14
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.	14
2. Run the engine while waiting until the remaining fuel is consumed.	14
3. Begin servicing the cylinder bore. See \	14
II. Oil Cylinder Bore	14
1. Disconnect spark plug wire and keep it away from spark plug. See Figures 24 and 25.	14
2. Remove ignition key, if provided. Remove spark plug.	14
3. Squirt 1oz. (30ml) of clean engine oil into spark plug hole.	14
4. Cover spark plug hole with rag to prevent fuel from spraying from spark plug hole when starter rope is pulled.	14
5. Grasp starter cord handle and pull out slowly using a full arm stroke. Repeat once. (This will distribute oil throughout the cylinder to prevent corrosion during storage.)	14
Figure 24. Disconnecting/Connecting Spark Plug	14
1. Grounding Post	14
2. Spark Plug Wire	14
3. Spark Plug	14
Figure 25. Spark Plug Connection	14
6. Install spark plug.	14
7. Carefully disconnect spark plug wire from grounding post, if provided.	14
III. Oil	14
IV. Battery	14
V. Clean Engine	14
X. Preventing Forest, Brush and Grass Fires	15
XI. Maintenance Intervals	15
Table 3. Maintenance Intervals	15
1. Change Oil	15
1. Check Oil Level	16
2. Clean Cooling Fins	16
1. Change Oil	16
1. Check Spark Plug	16
1. Replace Spark Plug	16
XII. Warranty Information	24