New guy looking for basic wiring help

Splashback

Recruit
Joined
Dec 16, 2019
Messages
1
I am converting a 15' aluminum Sea Nymph to a Bass Boat. The plan is to run a 24V trolling motor on the bow and a 12V trolling motor on the stern next to my 9.9. I also want to run a fishfinder on the bow and a smaller fishfinder on the stern. The last necessity is a bilge pump.
I'm pretty handy, but not too experienced with electrical. Is there anybody that can help me with a wiring diagram?
Thanks so much.
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
43,229
Assuming the 9.9 is not electric start

You can use either 3 bats (1 for 12V stern, 2 for 24V bow) or just 2 bats (24V set and tap off one for 12V side). Power only last so long so how much time will the motors be used?

The basic wiring should run off main feeds to fuse panels such as below

Gen wiring Diag 2.jpg

Why 2 trolling motors?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,220
I am converting a 15' aluminum Sea Nymph to a Bass Boat. .

AD has you covered on the electrical. However please elaborate with this line

a Sea Nymph is a deep vee, utility/fishing boat. if you plan on adding casting decks, etc., to make it a bass boat, be warned. Many have attempted to "make XXXX into a bass boat" with undesirable results

please take a look at the capacity placard first, anything you add to the boat subtracts from its capactiy

then take your boat out, place a 5 gallon bucket upside down and stand in the bow. you will find the boat very unstable.

usually its easier to take the boat you have and sell it, then buy the boat you want.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
I'll add my two cents worth but my comments relate to the conversion rather than wiring. First, you do not need three motors on that boat regardless what they are. You don't need a 24 volt motor either. You don't need a stern mount troller if you have a 9.9 prime mover. Why? Because a 55# thrust 12 volt bow mount is more than enough for that boat unless you are fishing in a 10mph current or always high winds. If wind is the issue and you feel you need a 24 volt motor to combat that, you probably shouldn't be on that body of water. On a 15 foot boat, a stern mount motor is not the best for trolling unless you happen to enjoy "back trolling" (trolling stern-first). 24 volts requires two batteries. Two of those up front creates a weight issue. One in back and one in front creates wiring issues. Either way it creates a space issue. I had the equivalent of your boat at one time. All of that stuff on the boat would have been too much weight, take up too much space and be a wiring problem. Have you asked yourself how you will actually use this boat rather than just saying I want/need all this stuff? Think it through thoroughly.
 
Top