I've got a '76 V6 Evinrude. I was out on the lake the other day when the tach just quit. Engine was running fine so I didn't go in for another hour. Finally came and shut the engine down. About thirty minutes later I tried to start the engine and nada. The starter spun but not fast enough to engage the gear. Dead battery! Replaced battery and engine cranked right up. Tach worked for maybe three minutes and quit. Thought at first maybe stator but engine ran with dead battery. Anybody got a clue???<br />Hooty