Hello All,<br /><br />I purchased an OMC tach for my 1997 25hp Johnson. The motor is remote controlled. The mechanic that sold it to me said I needed a 5 pulse tach and it has that right on the face.<br /><br />The tach has 4 wires coming from it.<br /><br />Grey--which I hooked to the grey from the harness<br /><br />Purple--Which I hooked to the "B" or battery pole of my ignition switch.<br /><br />Blue- Whic I combined with the Purple on the "B" pole on the ignition switch<br /><br />Black--Which I hooked to one of the ground poles of the ignition switch.<br /><br />When I turn the Ignition switch to on, The backlight lights up and the needle goes to about 200rpm. When I start the motor the needle stays right where it is, no change with change in rpm.<br />When I shut the motor down the tach zeros.<br /><br />I am stumped, I rechecked my connections, all are fine.<br /><br />Any comments are greatly appreciated!<br /><br />Ps, everything else is working as it should.<br /><br />Jim
