Yamaha F40H Owner's Manual

Also see for F40G: Owner's manual

Maintenance86(2) Check the battery’s charge. If your boatis equipped with the digital speedome-ter, the voltmeter and low battery alertfunctions will help you monitor the bat-tery’s charge. If the battery needs charg-ing, consult your Yamaha dealer.(3) Check the battery connections. Theyshould be clean, secure, and covered byan insulating cover. WARNING! Badconnections can produce shorting orarcing and cause an explosion.[EWM01913]EMU29335Connecting the batteryEWM00573Mount the battery holder securely in adry, well-ventilated, vibration-free loca-tion in the boat. Install a fully charged bat-tery in the holder.ECM01125Do not reverse the battery cables. Other-wise, the electrical parts could be dam-aged.(1) Make sure the main switch (on applica-ble models) is “ ” (off) before workingon the battery.(2) Connect the red battery cable to thePOSITIVE (+) terminal first. Then con-nect the black battery cable to the NEG-ATIVE (-) terminal.(3) The electrical contacts of the battery andcables must be clean and properly con-nected, or the battery will not start theengine.EMU29372Disconnecting the battery(1) Turn off the battery cut-off switch (ifequipped) and main switch. NOTICE: Ifthey are left on, the electrical systemcan be damaged. [ECM01931](2) Disconnect the negative cable(s) fromthe negative (-) terminal. NOTICE: Al-ways disconnect all negative (-) ca-bles first to avoid a short circuit anddamage to the electrical system.[ECM01941](3) Disconnect the positive cable(s) and re-move the battery from the boat.(4) Clean, maintain, and store the batteryaccording to the manufacturer’s instruc-tions.EMU38661Storing the batteryWhen storing your Yamaha outboard motor1. Red cable2. Black cable3. Battery123