79' evinrude 55hp. tried to hook up tach. but wouldn't work?? thought rectifier was bad.. so replaced it.... still no tach.?????? any ideas??? thanks, Alex.....
Ok. Try setting the switch on the back at "5". I just looked at the chart and it depends which alternator you have. Here's the chart.<br /><br /> Application Chart <br /><br />g'luck & c/6<br /><br />Hooty