Honda BF9.9A Owner's Manual page 48

4.Transport and store the motor either vertically or horizontally, as
shown below,with the tiller handle raised.
Vertical transport or storage: Attach the stern bracket to a stand.
Horizontal transport or storage: Rest the motor on the case protector
(tiller handle side of the motor).
CASE PiOTECTOR
Any other transport or storage position may cause damage or oil
leakage.
INCORRECT
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