I am going to get a 'tinytach' tachometer for my 4 stroke 4 hp Tohatsu. Does anyone know if this engine fires each revolution or only every other? [some 4 strokes spark 'double' - every revolution regardless - that's the question here.]<br /><br /> http://www.tinytach.com/tinytach/gasoline.php <br /><br />You have to buy the tach 'as is' - can't adjust for 1X or 2X sparking.<br /><br />Any help is appreciated!
