Honda Outboard Motor BF15A Owner's Manual page 47

5. Tilt up the outboard motor, remove the plug cap, pull the recoil starter
several times, and completely drain off the cooling water.
CAUTION: If the outboard motor is put on its side without completely
draining off the cooling water immediately after stopping it, water may
enter the engine from the exhaust port. Be sure, therefore, to drain off the
cooling water before putting the outboard motor on its side.
When pulling the starting grip, be careful not to touch the spark plug wire.
6. Pull the starting grip until resistance is felt (i.e. until the engine valve
closes, preventing dust from entering the combustion chamber).
7. Store the outboard motor in a clean, dry area.
NOTE: Before storing, clean, flush! and lubricate the outboard motor as
described on pages 35 and 37.
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