I've got a 1971 60HP Johnson outboard. I added a <br />tach which seems to work fine at everything but idle speeds. I had thought my idle speed was way high, but after much tinkering I have noticed that the tach always reads about 1200rpm even when I bring the idle down so low that the engine stalls. Also reads the same in nuetral as it does in gear, even with I can hear a noticable decrease in engine speed. <br /><br />The Tach is set for a 3 Cyl, all wiring is new. I even ran a new wire from the tach directly to the electrical connection block on the engine. No splices or connections in the wire. Why does my tack not read below 1000-1200 RPM's? Thanks for any help.
