Tecumseh OV691 Operator's Manual page 15

B. Extended Storage
I. Draining Fuel
Clean debris from engine before draining fuel from
carburetor. See "I. Clean Engine" instructions on page 12.
Afterward, continue reading instructions below.
If you have prepared your fuel for short-term storage it is
NOT necessary to drain fuel that contains stabilizer from
your carburetor. See "A. Short-Term/Seasonal Storage"
instructions on page 12. Afterward, continue reading
instructions below.
To avoid serious injury or death,
WARNING
DO NOT pour fuel from engine or
siphon fuel by mouth.
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.
NEVER leave the engine unattended
WARNING
when it is running and NEVER run
engine in enclosed areas to avoid death or serious injury.
3. Begin servicing the cylinder bore. See "II. Oil Cylinder
Bore" instructions.
If you operate the engine during all four seasons, it is NOT
necessary to lubricate the cylinder bore.
II. Oil Cylinder Bore
When lubricating cylinder bore, fuel
CAUTION
may spray from spark plug hole. To
prevent serious injury from fuel fires, follow these
instructions:
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.
• Carefully attach the spark plug wires to the
grounding posts, 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.
2. Remove spark plugs.
3. Squirt 1oz. (30 ml) of clean engine oil into spark plug
holes.
4. Cover spark plug holes with rags to prevent fuel from
spraying from spark plug holes when starter is
engaged.
181-1273-14
NOTES
NOTE
Four-Cycle Twin Cylinder Engine • Vertical Crankshaft • Air-Cooled
The Twin Cylinder Engines have two spark plug
connections.
Figure 19. Disconnecting/Connecting Spark Plug
Figure 20. Typical Spark Plug Grounding Post
5. Push starter button or turn ignition switch key to
"START" position. Immediately release starter button
or turn ignition switch key to "OFF" position (this will
distribute oil throughout the cylinders to prevent
corrosion during storage).
6. Remove rags covering spark plug holes.
7. Install spark plugs.
8. Carefully disconnect spark plug wires from grounding
posts, if provided.
9. Connect spark plug wires to spark plugs before
attempting to start engine.
III. Oil
Change oil if NOT changed within the last 3 months. See
"A. Changing Oil" instructions on page 8.
IV. Battery
See equipment manufacturer's instructions for proper
battery storage, if machine is equipped with a battery.
NOTE
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