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shep70057
05-05-2006, 12:40 PM
The trim gauge on my 06 Opti XS seems to be working backwards. Up is down and vice versa. I'm not using the digital sender rather the analog. Will switching the wires get it working like it's supposed to?? Changing the brown wire to the ground and the ground to the brown wire??

MaDneSS
05-05-2006, 03:12 PM
i dont think so , it is just a variable resistor, so it just measured resistance,reversing it wouldent of changed it im my opinion

SportJ-US-1
05-05-2006, 03:35 PM
The trim gauge on my 06 Opti XS seems to be working backwards. Up is down and vice versa. I'm not using the digital sender rather the analog. Will switching the wires get it working like it's supposed to?? Changing the brown wire to the ground and the ground to the brown wire??

Turn the gauge upside down.:) ;) I couldn't resist. The trim sender gets it's power from the gauge and if the gauge is working backwards then it is a guage problem not a sender problem.

shep70057
05-05-2006, 03:48 PM
Turning it upside down will make it work right, but then I'd have to stand on my head to read it, then it will but wrong again. :D I understand that the sender is a variable resistor which in turn sends a voltage to the gauge. If the gauge is taking a positive voltage and is working backwards, why would a negative voltage not correct it????:confused: The sender is brand new as is the gauge.

150aintenuff
05-05-2006, 08:09 PM
wrong sender.. the gauge and sender arent matched.... that is your problem

shep70057
05-05-2006, 08:16 PM
That makes sense....

150aintenuff
05-05-2006, 09:28 PM
it could also be wrong gauge and right sender.. there is 5 different variations of sender variation for each manufacture with yamaha having 3 on its own... i have a chart somewhere that tells what you need.... for each sender

shep70057
05-05-2006, 09:57 PM
If you find it, can you send it to me?? I still wonder if the swapping of wires would work. It was explained a littel screwy the last post being a negative voltage. In actuallity, if the gauge is a 0-5v gauge (let's say) and 0 is down 5 is up, by reversing the wires all you do is change the values where 5 is now down and 0 is up. Just don't feel like ruining a gauge that was difficult to find.

150aintenuff
05-05-2006, 11:26 PM
its like a fuel gauge,, say 240 ohms up and 33 down vrsus 0 ohms up and 90 ohms down.. reversing voltage will just screw up your electriacal system.. due to power going straight to ground... and either way resistance value stays the same regardless of polarity..... i will see if i still have the chart and tell you which one you need.

150aintenuff
05-05-2006, 11:33 PM
here it is.... pg 1 it sounds like you have a JOHNSON EVINRUDE gauge on a merc sender...... you MUST Have a gauge that is 167 ohm up 10 ohm down OMC is 1 ohm up and 88 ohm down just oposite....

shep70057
05-06-2006, 11:17 AM
THANK YOU!!!!!! I will see about getting a different gauge.:D

drasticplastic
05-07-2006, 07:04 PM
Does the sender have the black colored plastic actuator(the part that rotates) or the white colored one?.. Merc. has 2 senders that will bolt onto your 06 opti. One is for port side mounting(blk. one) one is for starbord side mounting(white one). If your trim sender mounts on the port side you need the blk. one.

The Big Al
05-07-2006, 07:05 PM
The engine is mounted upside down!:eek:

shep70057
05-07-2006, 07:12 PM
It's mounted on the Port side and yes it's black. Might look into getting the white one....:rolleyes:

Motor mounted upside down..... how did that happen??:D

drasticplastic
05-07-2006, 07:18 PM
Is the part # on the black one you have #821180A 6 ?. Thats the one that it takes. And this is hooked directly into the harness going forward to the guage. Orig. sender wires(3) on the motor harness are just capped off. This is the set-up to use if you don't use a A.G.I.. The white sender is part#821400A 2, but you don't need one of them if you are using a Merc.guage or equivalent.

shep70057
05-07-2006, 08:05 PM
Can't say the part number of the one I used. It had a black wire which mounted onto the sender itself (ground) and a brown/white wire that went into the motor. It connected to the main harness going to the gauge cluster and eventually ended up at the gauge. I found one on ebay with the part number you stated for 20 bucks... :cool:

Thanks Drastic;)

drasticplastic
05-08-2006, 06:59 AM
Shep, thats a good price on the sender if it is new. The list price on one from Merc. is @$40. Your welcome, Jon.