"I have a 1983 Johnson 60 mode
"I have a 1983 Johnson 60 model J60ELCTB. The original Tach on the boat was for a 1989 Merc 50 3 cylinder. It had settings for 4/6/8 cylinder 4 cycle motors and one for a 12 pole alternator. Went hunting for a new Tach and found this one with a terminal for...