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Uncommanded motor trim recently. #12150326 03/21/17 02:53 AM
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Texjef84 Offline OP
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It's happened 3 times in the last few months, always on the trailer. Runs full up or down, eventually stops then returns to normal. Trim switches at the bow, throttle handle, blinker and on the motor. Not sure where to start troubleshooting


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12150383 03/21/17 03:38 AM
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Fisherdad58 Offline
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Mine did that once in the rain. I guess it dried out because it hasn't done it since. Had to be the one on the bow. If you have a switch to cut power to all accessories and it still does it I would bet on the throttle handle switch. Otherwise I would start with the one on the bow. It's probably more exposed to the elements than the rest.


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12150516 03/21/17 11:41 AM
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Bob Landry Offline
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The switch on the bow is simply connected parallel with the one on the throttle and has power to the center pin all the time, same as the throttle.


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12150525 03/21/17 11:49 AM
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gary purdy Offline
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The control handle trim on some brands are known for this. Like Bob said.


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12150636 03/21/17 01:01 PM
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Bob Landry Offline
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The trim solenoid is only powered by the 12V from the trim switch. Nothing else affects it. Switches are cheap, I would just replace both of them. If it's dirty or flakey contacts in the switch causing it to happen intermittently, you can waste a lot of time monking with it.


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Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2020 Robalo R200 CC, Yamaha 150

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Re: Uncommanded motor trim recently. [Re: Texjef84] #12152436 03/22/17 11:33 AM
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Texjef84 Offline OP
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Thanks to all who replied. Bob, just so I'm clear, which two would you replace? Bow and throttle?


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12152446 03/22/17 11:50 AM
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Bob Landry Offline
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I would replace both of them. They're cheap. Also, check the cable under the console for exposed wiring just to make sure you don't have a bare wire touching something. it will be a small blue/red/green ribbon cable.


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Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2020 Robalo R200 CC, Yamaha 150

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Re: Uncommanded motor trim recently. [Re: Texjef84] #12153900 03/23/17 02:25 AM
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Texjef84 Offline OP
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Thank you again, I'll report back


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12338885 07/14/17 12:14 PM
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Texjef84 Offline OP
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By process of elimination I found the trim switch on the side of the motor to be faulty.


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Re: Uncommanded motor trim recently. [Re: Texjef84] #12338936 07/14/17 12:48 PM
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Bass N Beer Offline
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Every boat that I have owned has done it at one point in time. It was always the bow switch that was the culprit.

Re: Uncommanded motor trim recently. [Re: Texjef84] #12339034 07/14/17 01:58 PM
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Thats why I installed a battery cutoff. When it's off, nothing recieves power, preventing anything from operating "on its own", especially while driving down the road. Talons don't draw power, etc, etc..


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