Honda EU1000i Owner's Manual page 54

2. Change the engine oil (page 41).
3. Remove the spark plug, and pour about a tablespoon of clean
engine oil into the cylinder. Crank the engine several revolutions to
distribute the oil, then reinstall the spark plug.
4. Reinstall the spark plug cap on the spark plug securely.
5. Reinstall the spark plug maintenance cover.
6. Reinstall the left-side maintenance cover and tighten the cover
screw securely.
7. Pull the starter grip slowly until resistance is felt, then return the
starter grip gently. This closes the valves so moisture cannot enter.
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