Cub Cadet 2166 Operator's Manual page 45

If the machine is to be inoperative for a period longer
than 30 days, the
recommended:
WARNING
Never store the tractor with fuel in the tank
indoors or in poorly ventilated enclosures,
where fuel fumes may reach an open flame,
spark or pilot light as on a furnace, water heater,
clothes dryer, etc.
CAUTION
Fuel left in the fuel tank during warm weather
deteriorates and will cause serious starting
problems.
1. To prevent gum deposits from forming inside the
engine's carburetor
malfunction of the engine, remove all gasoline
from the fuel tank as follows:
WARNING
Do not drain fuel when the engine is hot. Allow
the engine adequate time to cool.
SECTION VI. OFF-SEASON STORAGE
following procedures
and causing possible
Drain fuel into an approved container outdoors, away
are from open flame.
a. Drain any large volume of fuel from the tank by
disconnecting the fuel line from the in-line fuel
filter near the engine.
b. Reconnect the fuel line and run the engine
until it starts to falter, then use the choke to
keep the engine running until all fuel in the
carburetor has been exhausted.
c. Again disconnect the fuel line and drain any
remaining gasoline from the system.
2. Remove the spark plug and pour one (1) ounce of
engine oil through the spark plug hole into the
cylinder. Crank the engine several times to
distribute the oil. Replace the spark plugs.
3. Clean the engine and the entire tractor thoroughly.
NOTE: We do not recommend the use of a pressure
washer or garden hose to clean your unit. They may
cause damage to electrical components; spindles;
pulleys; bearings; or the engine. The use of water will
result in shortened life and reduce serviceability.
4. Lubricate all lubrication points.
5. Follow the battery storage instructions on page 30.
6. Protect the tires and seat from sunlight. Regularly
check the tires to maintain proper inflation.
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