Honda EB11000 Owner's Manual page 55

3. Change the engine oil (page 37).
4. Remove the two spark plugs and pour
about
a tablespoon of clean
engine oil into the cylinders. Crank the engine several revolutions
to distribute the oil, then reinstall the spark plugs.
5. Remove the battery and store it in a cool, dry place. Recharge it
once a month.
6. Cover the engine to keep out dust.
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