Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 32Get this manual

Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 32

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SPARK PLUGS 1) Remove the engine cover and spark plug caps2) Use the wrench supplied in the tool kit to remove the spark plugs3) Visually inspect the spark plugsDiscard them if the insulator is cracke