Moor Sub Trolling Wiring Question

[overthelimit]

Picked up a used Moor Sub Troll and have a question about the wiring. The directions say to connect the black lead of the power cable to both the boats ground system and negative battery terminal. 

 

I am not sure on the ground system as I don't believe there's one on my boat. I have a 16 foot tiller with a 30 hp 4 stroke if that helps at all. Manual says the current must be returned to the water ground to complete the circuit.

 

Thanks

 

 

[Richard]

Is your motor electric start or pull start? If electric there should be a grounding wire from the battery to the frame work of the motor or boat. if so you can undo the nut and add a ring terminal and wire to the sub troll. If pull start I would think you could just find a bolt on the motor and ground it there. If it is an aluminum boat you can just find a bolt on the boat to ground it.

 

Good luck and tight lines

[steelydan]

mine is connected to the pos and neg battery term. it works fine. the ground from my motor frame goes to the same neg. term as the moor subtroll

[spoonfed-1]

You can run it directly to the ground terminal on the battery if you want.

No issues.

[overthelimit]

So I can run just two leads from the sub troll, one to the positive terminal and one to the negative? No need to run a third lead to ground?

I hooked up just the positive and negative and dropped the probe in a bucket of water just to see if I would get a reading on temp and nothing showed on the head unit. Maybe ill get a fresh battery and wait to test when I have the boat out again.

[spoonfed-1]

I ran mine to the neg. terminal but the battery was installed in the boat which had the motors ground running to it as well.

Maybe thats why I had no issues?

[Firechief48]

I would agree with Spoonfed. Mine is hooked to the battery but there is a ground already from the neg terminal to the engine block.

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[TileMan Dan]

I have mine wired directly to a fuse panel.. Works just fine

[llabarr]

Motor is you connection from negative to water, if you run wire from negative post of battery to the water In your bucket test it should work.