Maintenance66 Drink large quantities of water or milkfollowed by milk of magnesia, beatenegg, or vegetable oil. Get immediatemedical attention.Batteries also generate explosive hydro-gen gas; therefore, you should always fol-low these preventive measures: Charge batteries in a well-ventilated ar-ea. Keep batteries away from fire, sparks, oropen flames (for example: weldingequipment, lighted cigarettes, and soon.) DO NOT SMOKE when charging or han-dling batteries.KEEP BATTERIES AND ELECTROLYTICFLUID OUT OF REACH OF CHILDREN.CAUTION:ECM00360 A poorly maintained battery will quicklydeteriorate. Ordinary tap water contains mineralsharmful to a battery, and should not beused for topping up.1. Check the electrolyte level at least once amonth. Fill to the manufacturer’s recom-mended level when necessary. Top uponly with distilled water (or pure de-ion-ized water suitable to use in batteries).2. Always keep the battery in a good state ofcharge. Installing a voltmeter will helpyou monitor your battery. If you will notuse the boat for a month or more, removethe battery from the boat and store it in acool, dark place. Completely rechargethe battery before using it.3. If the battery will be stored for longer thana month, check the specific gravity of thefluid at least once a month and rechargethe battery when it is low.NOTE:Consult a Yamaha dealer when charging orre-charging batteries.EMU29331Connecting the batteryWARNINGEWM00570Mount the battery holder securely in a dry,well-ventilated, vibration-free location inthe boat. Install a fully charged battery inthe holder.CAUTION:ECM01121 Make sure the main switch (on applica-ble models) is “ ” (off) before workingon the battery. Reversal of the battery cables will dam-age the electrical parts. Connect the red battery cable first wheninstalling the battery and disconnect theblack battery cable first when removingit. Otherwise, the electrical parts can bedamaged. The electrical contacts of the batteryand cables must be clean and properlyconnected, or the battery will not startthe engine.