Trim gauge not showing selection.

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    Posted: 25 Aug 2019 at 11:26am
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Rebuilt Yamaha 50DETO, think it's now really a Mercury/Mariner 50 ELPTO.
The trim gauge springs to life, showing just above half way when switched on, but if I manually move the sender on the transom bracket there's no change on the gauge.
I assume it's a variable resistor internally, do they have a history of failing? The pdf diagram I have in the manual only shows the connector into the control with a single wire to the gauge.
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Post Options Post Options   Likes (0) Likes(0)   Quote Durban Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 2019 at 9:22am
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Iam not sure what trim sender you have Yamaha or mercury for Yamaha measure the resistance between the pink and black it should be 360 to 540 ohms and then when you move the lever up between the orange and black it should be 800 to1200 ohms if the specs are good then suspect the meter.
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