Tecumseh H30-40 - Manual (Page 19)

181-789-14 Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled Page 17
IV. Fuel Treatment
1. Add fuel stabilizer according to manufacturer’s
instructions.
2. Run engine at least 10 minutes after adding stabilizer
to allow it to reach carburetor.
Never store the engine with fuel in
the fuel tank inside a building with
potential sources of ignition such as hot water and space
heaters, clothes dryers, electric motors, etc.
NOTE
Instead of using a fuel preservative/stabilizer, you can
empty the fuel tank as described under "I. Draining Fuel"
instructions. See "B. Extended Storage" instructions.
B. Extended Storage
I. Draining Fuel
NOTES
Clean debris from engine before draining fuel from
carburetor. See "I. Clean Engine" instructions on page 16.
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 16.
To avoid severe injury or death,
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 when it is running and
NEVER run engine in enclosed areas.
3. Begin servicing the cylinder bore. See "II. Oil Cylinder
Bore" instructions.
II. Oil Cylinder Bore
When lubricating cylinder bore, fuel
may spray from spark plug hole. To
prevent serious injury from fuel fires, follow these
instructions:
1. Disconnect spark plug wire and keep it away from
spark plug. "G. Avoid Accidental Starts" instructions on
page 2. See Figures 37 and 38 on next page.
• Keep the disconnected spark plug wire
securely away from metal parts where arcing
could occur.
• Attach the spark plug wire to the grounding
post, if provided.
• Disconnect battery at negative terminal first, if
engine is equipped with an electric starter.
• Turn off all engine switches.
• Remove ignition key, if provided.
2. Remove spark plug.
3. Squirt 1oz. (30ml) of clean engine oil into spark plug
hole.
4. Cover spark plug hole with rag to prevent fuel from
spraying from spark plug hole when starter rope is
pulled.
NOTES
For engines equipped with recoil starters proceed to Step 5.
For engines equipped with electric starters proceed to Step
6.
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.) Proceed to Step 8.
6. Push starter button or turn ignition switch key (see
equipment manufacturer’s instructions) to cycle the
engine for one to two seconds.
7. Turn ignition switch key to “OFF” position. Repeat Step
6. and Step 7. (This will distribute oil throughout the cyl-
inder to prevent corrosion during storage.)
8. Remove rag covering spark plug hole and install spark
plug.
9. Carefully disconnect spark plug wire from grounding
post, if provided.
NOTE
Connect spark plug wire before attempting to start engine
once engine is out of storage.
III. Oil
Change oil if not changed within the last 3 months, see "A.
Checking and Changing Oil" instructions on page 12.
IV. Battery
See equipment manufacturer’s instructions for proper
battery storage if machine is equipped with a battery.
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