help with tachometer

[texas_angler_2002]

Hi,<br /> been a while since i have posted here but i ran into another prob and decided to see if u can help me out.i have a 85 rude 115 vro and im switching tachs. he news tachometer has shafts where the wires hook in to with a nut. the old tach. isnt like thaat the wires are coming from inside.there are a gray green blue black wires. im curious how to hook it up. why replacing u ask. the old tach. needle broke off .....lol

 

[Hooty]

Re: help with tachometer

Go to: www.tflx.com/PDF/99320.pdf<br /><br />That's Teleflex's tach help web site.<br /><br />g'luck & c/6<br /><br />Hooty

 

[rickdb1boat]

Re: help with tachometer

Gray should go to the sender<br />Black should be ground<br />Green is either for the Backlight or ignition<br />Blue is either for Backlight or ignition<br /><br />With a Voltmeter handy, turn Navigation lights to the "ON' position. The backlight wire will give you 12 volts, while the other should show nothing! That's how it works on mine!

 

[Dhadley]

Re: help with tachometer

Could the green wire possibly be a purple wire? Purple is ignition switch power. Blue is lights, grey is the sender and black is ground. <br /><br />Good luck!