1974 Lund, all wires messed up! HELP

Fudoshin

Cadet
Thread starter
Joined
May 26, 2013
Messages
7
Hey everyone, I just purchased my first other than john boat, it's a 1974 Lund with a 115hp Johnson on her. I've never had anything other than a tiller operated motor so everything is new to me. I've driven them before just never owned, yadda yadda yadda, anyways, the speedometer, fuel guage, and tach wires are all cut and just dangling under the dash, there is a horn on the front that I do not see a button for, the front bow light and transom lights are inoperable, I do not see a switch for them anywhere. I want to hook up a CD player under the passenger side dash. My questions are how to I get to the wiring under the bow light? I took the screws off and pulled it up a bit but it was just wires, where do these run too, and will I be able to follow them? I have a fish finder I just slapped on the dash and I'm currently using a 12v SLA battery to run it because I wasn't sure what I needed to do as far as rigging everything up. I've never had to wire up a boat before so I just want to make sure I do it right. Theres a lot of stuff here I know but any help will be greatly appreciated.

Problem recap:
bow and transom lights do not work, bought new ones need to wire them up
there is a steel built in fuel tank in the back, how do I hook the fuel guage up to that and have it able to read
fuel guage, speedometer, tach do not work, wires are cut, where do I hook them back up?
Hooking up a cd player, what wires do I need, what do i need to hook one up
front bow horn does not work, I do not see a button for it, where do I start troubleshooting?
 

T_Herrod

Petty Officer 1st Class
Joined
Apr 1, 2012
Messages
349
Re: 1974 Lund, all wires messed up! HELP

Sounds like you have a real mess on your hands. Some pictures might be good.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,545
Re: 1974 Lund, all wires messed up! HELP

Hey everyone, I just purchased my first other than john boat, it's a 1974 Lund with a 115hp Johnson on her. I've never had anything other than a tiller operated motor so everything is new to me. I've driven them before just never owned, yadda yadda yadda, anyways, the speedometer, fuel guage, and tach wires are all cut and just dangling under the dash, there is a horn on the front that I do not see a button for, the front bow light and transom lights are inoperable, I do not see a switch for them anywhere. I want to hook up a CD player under the passenger side dash. My questions are how to I get to the wiring under the bow light? I took the screws off and pulled it up a bit but it was just wires, where do these run too, and will I be able to follow them? I have a fish finder I just slapped on the dash and I'm currently using a 12v SLA battery to run it because I wasn't sure what I needed to do as far as rigging everything up. I've never had to wire up a boat before so I just want to make sure I do it right. Theres a lot of stuff here I know but any help will be greatly appreciated.

Problem recap:
bow and transom lights do not work, bought new ones need to wire them up
there is a steel built in fuel tank in the back, how do I hook the fuel guage up to that and have it able to read
fuel guage, speedometer, tach do not work, wires are cut, where do I hook them back up?
Hooking up a cd player, what wires do I need, what do i need to hook one up
front bow horn does not work, I do not see a button for it, where do I start troubleshooting?

Ayuh,.... Have you ever run a 12v circuit,..??

Do you Understand 12v wirin',..??

The wirin' diagrams pinned to the top of this forum will give ya the basic lay-out yer lookin' for....
 

Fudoshin

Cadet
Thread starter
Joined
May 26, 2013
Messages
7
Re: 1974 Lund, all wires messed up! HELP

No I've never run a 12V set up before but I am pretty competent so I think I can figure it out. I just wasn't sure if I can hook all of that up to each other, and if the speedometer is cut where do I attach it too to get the proper speed, and for the fuel tank where do I attach the fuel gauge to so it reads correctly? Big mess to just jump into for me haha, thanks for the advice guys:confused:
 

Fudoshin

Cadet
Thread starter
Joined
May 26, 2013
Messages
7
Re: 1974 Lund, all wires messed up! HELP

Ok guys I got ahold of the preivous owner just to ask what everything looked like under the sheets. He said he planned on rewiring everything but never got around to it, he got as far as ripping everything out and that's it...:mad-new: but at least I can re do the wiring myself and know it's done correctly and know the lay out of the schematic incase something happens. With that being said can I hook up a GPS, troller, gauges (fuel/speed) nav lights, cd player, and eventually a live well all to one battery? And by that I mean battery to fuse block, to accessories? If so How should I go about hooking it all up?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,545
Re: 1974 Lund, all wires messed up! HELP

Ok guys I got ahold of the preivous owner just to ask what everything looked like under the sheets. He said he planned on rewiring everything but never got around to it, he got as far as ripping everything out and that's it...:mad-new: but at least I can re do the wiring myself and know it's done correctly and know the lay out of the schematic incase something happens. With that being said can I hook up a GPS, troller, gauges (fuel/speed) nav lights, cd player, and eventually a live well all to one battery? And by that I mean battery to fuse block, to accessories? If so How should I go about hooking it all up?

Ayuh,... Look in the Top sticky in this forum for generic wirin' diagrams,...
 

Fudoshin

Cadet
Thread starter
Joined
May 26, 2013
Messages
7
Re: 1974 Lund, all wires messed up! HELP

ok I've been looking at quite a few wiring diagrams, and I found a junk boat (in a crash newer deck boat though) and I got the rocker panel and the matching fuse panel off of it. How do I hook this beast up? I only have a few accessories to attach to it right now but just want to make sure I do it right. Any help would be appreciated. ATTACHED PICTURES!!!photo-1.JPGphoto-2.JPGphoto-3.JPGphoto.JPG
 

NYBo

Admiral
Joined
Oct 23, 2008
Messages
7,107
Re: 1974 Lund, all wires messed up! HELP

You would daisy-chain the positive lead to one side of each circuit breaker. A lead from the other side of the breaker would feed the switch with the same name. The positive lead for the accessory then attaches to the terminal on the switch.
 
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