If your engine will be stored with gasoline in the fuel tank and carburetor, it is important
to reduce the hazard of gasoline vapor ignition. Select a well-ventilated storage location,
away from any appliance that operates with a flame, such as a furnace, water heater, or
clothes dryer. Also avoid any location with a spark-producing electric motor, or where
power tools are operated.
If possible, avoid storage areas with high humidity, because humidity increases
rust and corrosion.
Ensure that all fuel has been drained from the fuel tank, in order to minimize the
possibility of fuel leakage.
Position the equipment so the engine is level. Tilting the machine can cause fuel
or oil leakage.
Cover the engine and exhaust system to prevent from dust. Notice that a hot
engine and exhaust system can ignite or melt some materials. Do not use sheet
plastic as a dust cover. A nonporous cover will trap moisture around the engine,
promoting rust and corrosion.
Preparing the machine after a long term storage
Check your engine as described in the maintenance chapter.
If the fuel was drained during storage preparation, fill the tank with fresh gasoline. If you
keep a container of gasoline for refueling, be sure that it contains only fresh gasoline.
Gasoline oxidizes and deteriorates over time, causing hard starting. If the cylinders were
coated with oil during storage preparation, the engine may smoke briefly at startup. This
is normal.
Period of storage compared to last usage.
Less than 1-month
No special preparation is required.
1 to 2 months
Fill with fresh gasoline and add a gasoline conditioner.
2 months to 1 year
Fill with fresh gasoline and add a gasoline conditioner.
Drain fuel from carburetor.
Clean fuel sediment cup.
1 year or more
Drain fuel tank.
Drain fuel from the carburetor.
Clean fuel sediment cup.
Remove spark plug.
Put a tablespoon of engine oil into the spark plug cylinder. Turn the engine slowly
with the pull rope to distribute the oil.
Reinstall spark plug.
Change engine oil.