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Old 11 March 2009, 06:18   #1
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yamaha trim gauge wiring.

After a failed attempt to wire a trim gauge in i need help!

The gauge has been fitted in the dashboard and the sender wire taken to the engine, the gauge reads up, and reads down when the wire is grounded, so all OK there.
This is where the fun started, the sender has 4 wires, and i couldnt read any resistance between any wires, so assumed there may be a problem with the sender. I spoke to NOS4R2 and looked at the paperwork that came with the gauge, and came to the conclusion that the sender was a variable resistor and was buggered, so i set to dismantling it.

Its never going to go back together, and worse it didnt seem to be a variable resistor, there is no mecahnical connection between the spindle and the electronics, and there apeared to be a few resistors and an OP AMP in there too. I am thinking it needed a power supply as well as the gauge wire to power up the internal electronics and is a proximity switch.
Does anyone know how it worked before i Mullered it, and if there is a simple variable resistor replacement? the yamaha dealer says there are 3 and 4 wire ones both 130.
Any second hand trim sender of any engine would be a start, i would rather spent half a day engineering a mounting than spending 130 on a sender that may not work with my gauge, when i could spend it on a day out on the boat.
Anyone got any ideas or senders?????
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Old 11 March 2009, 07:51   #2
JSP
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I've not got a clue but can I ask you what wire goes to where? Mine isn't connected up. Just got wires and not a clue how they work
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Old 11 March 2009, 08:07   #3
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Quote:
Originally Posted by JSP View Post
I've not got a clue but can I ask you what wire goes to where? Mine isn't connected up. Just got wires and not a clue how they work
If i knew that i wouldnt have fekked mine up hopefully someone knows!
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Old 11 March 2009, 08:10   #4
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Sorry mate, I thought you knew how to wire it in but something was missing on yours. Heads still full of Brandy from last night
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Old 11 March 2009, 15:15   #5
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sorry chap i could not find the yam sender but enclosed are the pics of the mercury optimax unit,
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Old 24 March 2009, 15:28   #6
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Did you get this sorted in the end ?
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Old 24 March 2009, 16:54   #7
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No Mate, everyone tells me the senders are really crap, even the yam dealer said theyre a waste of money replacing.
The solution will be a stainless bowden cable running to a pot under the cowl.....eventually if i ever get around to it!
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Old 31 March 2009, 09:23   #8
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That's just gone right over my noggin mate.
Is there a after market unit you can buy?
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Old 09 April 2009, 13:31   #9
JSP
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Right mines wired up to the PT but I have a yellow and black wire left. Any ideas?
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Old 01 August 2009, 09:14   #10
JSP
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Did you ever find a replacement for the sender mate?
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