24 v trolling motor help

[deesterdee]

this has probably been asked many times but I cant find it so I will give as much info as possible
I have a 89 Astro fish and ski boat it had a 12/24 volt trolling motor on it. I am changing it to just 24v, in the back of the boat it has a spot for 1 battery that my big motor runs on , the other side it has 2 batt's and there is a fuse block that has 2 red and 2 black wires on it and in front there is a plug that has 3 prongs to my trolling motor. the trolling motor only has 2 wires a red and black I can get it to run but on 12 v only it will not do 24 can any one help thanks in advance

 

[HalfFish5087]

Re: 24 v trolling motor help

Deesterdee, regarding your two trolling motor batteries, to get 24V you simply need to have one jumper wire between each battery going from the positive over to the negative. Then you will be left with a negative on one battery and a positive on another, run the positive to the fuse block and the negative straight to the plug. Then run a wire the positive from the fuse block to the plug.

 

[deesterdee]

Re: 24 v trolling motor help

Deesterdee, regarding your two trolling motor batteries, to get 24V you simply need to have one jumper wire between each battery going from the positive over to the negative. Then you will be left with a negative on one battery and a positive on another, run the positive to the fuse block and the negative straight to the plug. Then run a wire the positive from the fuse block to the plug.

thanks for the reply the problem I have is the boat was set up for a 12/24v motor from the factory there is a wiring diagram that shows 2 batteries and it does not show the jumper it had a switch on the trolling motor to make it 24v .I dont know how but it had 3 wires this motor has only 2. if I put the jumper on i can get the 24 volts at the battery but not at the motor just 12 v