2009 Yamaha F40 Outboard Service Manual, Page 351Get this manual
Maintenance
Predelivery check
To make the delivery process smooth and efficient, the predelivery checks should be completed as explained below
Checking the battery
Battery electrolyte is dangerous; it contains sulfuric acid which is poisonous and highly causticAlways follow these preventive measures: Avoid bodily contact with electrolyte as it can cause severe burns or permanent eye injuries Wear protective eye gear when handling or working near batteriesAntidote (EXTERNAL): SKINWash with water EYESFlush with water for 15 minutes and get immediate medical attentionAntidote (INTERNAL): Drink large quantities of water or milk followed with milk of magnesia, beaten egg, or vegetable oilGet immediate medical attentionBatteries generate explosive, hydrogen gasAlways follow these preventive measures: Charge batteries in well-ventilated area Keep batteries away from fire, sparks or open flames (example: welding equipment, lighted cigarettes) DO NOT SMOKE when charging or handling batteriesKEEP BATTERIES AND ELECTROLYTE OUT OF THE REACH OF CHILDREN1Check the battery electrolyte levelIf the level is at or below the minimum level mark a, add distilled water until the level is between the maximum and minimum level marks