NEED HELP - trolling motor issue... - Chicago Illinois Fishing Forum, Information & Reports
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Old 05-09-2013, 12:53 AM   #1 (permalink)
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Default NEED HELP - trolling motor issue...

A friend of mine recently purchased a used 50lb thrust bow mount Minn Kota off of Craigslist to replace the original Mariner bow mount motor on his early 90's Lund. The original motor worked fine, but was only a 26lb thrust and had an issue with the pin that releases it up and down.

We agreed that it was time for a new motor. My friend took it out for the first time and he claims it has no more thrust than the old one. The new one is a 12V or 24V motor, and his boat is set up for 12V. He thinks if he sets up a 24V system, that will do it, I told him I didn't think that was the issue. It's not the volts, it's the amps, I always thought, but I'm not an electronics guy.

We could really use some ChiTown expertise here, as we have two big fishing trips coming up this summer and fall. Any tips will be rewarded with secret spots.
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Old 05-09-2013, 07:31 AM   #2 (permalink)
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Default Re: NEED HELP - trolling motor issue...

If his motor is a model that can be run in 12 or 24 volt mode, connecting to 24 volts will give him more thrust. Not all motors have the option of 12 or 24 volts. Amp hrs. is a measure of storage capacity and will determine run time.
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Old 05-09-2013, 10:08 AM   #3 (permalink)
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Default Re: NEED HELP - trolling motor issue...

Great. Thanks!
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Old 05-09-2013, 12:35 PM   #4 (permalink)
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Default Re: NEED HELP - trolling motor issue...

Hooking up a 12 volt motor to 24 volts will damage it. Be sure it a can handle 24 volts before you proceed.
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Old 05-09-2013, 01:00 PM   #5 (permalink)
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Default Re: NEED HELP - trolling motor issue...

make sure you have an appropriate gauge wire for your harness/connection. If wire is too light of a gauge, you lose power and will risk having a meltdown or frying your motor. More amps, heavier wire. A 50lb motor is going to need heavier wire than a 26lb does. Minimum of 8 gauge is mandatory, but, I'd recommend 6 gauge (marine grade) wire to handle the amps. Marine-grade cable aint cheap, but will save you many headaches, failures in the long run. If you have to re-wire, make your harness a couple feet longer than you need to allow for future alteration.
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Old 05-09-2013, 01:12 PM   #6 (permalink)
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Default Re: NEED HELP - trolling motor issue...

Quote:
Originally Posted by fishinnut
Hooking up a 12 volt motor to 24 volts will damage it. Be sure it a can handle 24 volts before you proceed.
On the flipside, a 24v motor running on 12v runs EXTREMELY slow
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Old 05-09-2013, 01:33 PM   #7 (permalink)
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Default Re: NEED HELP - trolling motor issue...

Quote:
Originally Posted by boggzD
make sure you have an appropriate gauge wire for your harness/connection. If wire is too light of a gauge, you lose power and will risk having a meltdown or frying your motor. More amps, heavier wire. A 50lb motor is going to need heavier wire than a 26lb does. Minimum of 8 gauge is mandatory, but, I'd recommend 6 gauge (marine grade) wire to handle the amps. Marine-grade cable aint cheap, but will save you many headaches, failures in the long run. If you have to re-wire, make your harness a couple feet longer than you need to allow for future alteration.
Best deals on marine wire.

http://shop.genuinedealz.com/Marine%20E ... %20Supply/
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