Need Some Help With My Wiring Of My Rpm Tack

[justin scobee]

Ok im trying to wire my tacks back up. My Rpm tack has a wireing harness that runs to my control. When i removed it all from my old boat i just cut the wires so I would just be able to color mate them back up. On the RPM tack it has a Black wire and says ground on the tack, then a brown and it says t some thing but i know that one gose to my distributor, Than there is a whire wire with a color line runing down it. Than a white wire. Both of them plug in to the + spot as power. Ok one there harness thats all of the same wiires but the white with the color line running down it. Now I have hooked all them up but the one and i was wanting to know what it was for? On my old boat the RPM tack light would turn on when i turned the key to power. so if I run a hot wire to It it would not shut off right? so Im not sure. Any help would be GREAT. Thanks Justin

PS If you would like to talk on the phone as i suck with spelling and all. you can call me at 417 365 2435.

[justin scobee]

Ok i figged out the white white wire. Its a jumper to the other tack lights. duh what was i thinkin. BUUTTTTTT!!!!!!!!!! There are 2 brown wires. one lighter brown and a dark brown??? I musted of over looked that one. but I did get the light working. the bulb was dead. Dose both brown wires on the tack tie in to the brown wire on the harness? thanks justin

[fishinwrench]

Purple to the POS

Black to the GND

Thought it was Gray to the S (or SEN), but on that old Merc with no trim sender circuit in the harness it could be Brown or Tan.

Then yeah....Blue or White to the guage lights (parallel) fed from the light switch...Not the ignition hot.

[justin scobee]

Thanks some time this evening I going to get it out and hook the muffs up and let it run and check out my RPM. On my fuel tank I have Two wires. Is one a hot wire and the other go to the fuel gage? I Have a Trim gage on this boat that shows up middle and down. Is there a way to hook that up to my trim pump? My old champoin did not have a gage for that. Thanks justin

[fishinwrench]

You would have to add a "trim position sender" and I'm not sure that those 70's model Mercs even have a place to mount one. If so it will be on the inside edge of the motor mount, port side.

[justin scobee]

Ok The other brown wire was a to the ground. I just got rid of it. But on the harness come from crontrol box there is 3 wires. plan white, brown and black. as I was working on it they folded a wire back and black taped it to the wireing harness it is a white with a purple line down it. what is that one for. the motor is a 76 mercury 1150power trim. The old boat it came from was a 76 champion. when i took every thing out that is how it was. thanks justin