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#1012744 - 08/10/19 04:44 PM Help, Depth Finder shuts down, when starting motor
DrifterWA Offline
River Nutrients

Registered: 04/25/00
Posts: 4544
Loc: East of Aberdeen, West of Mont...
I have a custom made boat, River Wild. When I ordered the boat I want dual batteries, up front..for weight distribution.

The problem from the "get go", if I start the motor either my ETech 105 or my Yamaha 8 and the depth finder is on....motor starts but depth finder goes blank.

I had 2 marine batteries, size 24, just replaced the 24's with 2 marine size 31. I thought the bigger batteries would eliminate the problem...
played in the Chehalis today....same problem.

I have gotten good at re-starting the depth finder but would prefer not to have to do that....

Looking for a possible solution?????


Oh, I do have a perko switch, doesn't matter if on 1, 2, or All





Edited by DrifterWA (08/10/19 06:04 PM)
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"Worse day sport fishing, still better than the best day working"

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#1012764 - 08/11/19 10:10 AM Re: Help, Depth Finder shuts down, when starting motor [Re: DrifterWA]
Larry B Offline
River Nutrients

Registered: 10/22/09
Posts: 2697
Loc: University Place and Whidbey I...
Since I am chasing (so far unsuccessfully) my own 12V gremlin I won't offer any suggestions on what may be causing the problem. However, until you can sort it out you might want to consider a battery solely for the depth finder and recharge as necessary at home.
_________________________
Remember to immediately record your catch or you may become the catch!

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#1012788 - 08/11/19 09:39 PM Re: Help, Depth Finder shuts down, when starting motor [Re: DrifterWA]
Kyle_A Offline
Spawner

Registered: 12/03/00
Posts: 766
Is this a starter switch issue? That is the finder is wired into the starter switch and therefore it is disconnected from battery every time you cycle the key? You might try as a test, to wire your finder directly to the battery - see if that solves it. Many starter switches kill power as you cycle from off to start, back to on.

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#1012799 - 08/12/19 08:19 AM Re: Help, Depth Finder shuts down, when starting motor [Re: DrifterWA]
DrifterWA Offline
River Nutrients

Registered: 04/25/00
Posts: 4544
Loc: East of Aberdeen, West of Mont...
Kyle_A:

Now that sounds like the problem.....boat builder put the Perko switch in the most terrible place to try to work on but for $$$$, bet I can find a marine shop to "help me out".

Thanks
_________________________
"Worse day sport fishing, still better than the best day working"

"I thought growing older would take longer"

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#1012805 - 08/12/19 08:51 AM Re: Help, Depth Finder shuts down, when starting motor [Re: DrifterWA]
GodLovesUgly Offline
Repeat Spawner

Registered: 04/20/09
Posts: 1188
Loc: WaRshington
I have had this problem and seen it on other boats as well. When the dealer did the FF install they wired the 12v lead into the ignition circuit behind the dash. They spliced in to the hot lead and it would cut out every time the motor fired and cause the FF to shut off then turn back on.

My solution was to just pull the FF hot lead from the ignition wiring entirely and wire it to its own dedicated, fused circuit. Problem solved.
_________________________
When I grow up I want to be,
One of the harvesters of the sea.
I think before my days are done,
I want to be a fisherman.

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