Recently, while attempting to start my Yamaha 250HP, 4 stroke, I heard a "faint" "Pop" sound when I turned the ignition key. The boats electrical went completely dead. I switched to the #1 Battery (from the #2 Battery), turned the key and everything worked beautifully. Switching back to # 2 battery, again the entire electrical was dead. I figure that a fuse, breaker switch of something has "blown". I checked 2 fuses on the transom near the battery selector switch, the line fuse from the battery to the selector switch and the breaker switches on the center console all appeared to be "solid".
Does anyone have a suggestion to help me fix the #2 battery problem?