Changeing original nissan trim gauge for a faria

[blownox13]

Hi I just bought a nissan 17' fiberglass boat (sp1790ba) with a 90HP Nissan motor on it. I am changing out the original nissan trim gauge for a new faria trim gauge and also the original Nissan tachometer with a Faria gauge. My question is I need a wiring diagram for the original gauges. Any help? First ever post

 

[seabob4]

Re: Changeing original nissan trim gauge for a faria

Are your original gauges still wired? If so, there will be basically 3 terminations (not counting back lighting) on each gauge. Sender (S), Ignition (I), and ground. Simply swap the appropriate leads from one gauge to the other. You'll also need to set the tach on the correct "pole" setting. Your's should be set on 6, according to this PDF from Faria...Faria Tachometer Settings