Reply With QuoteBrown/white goes to the tilt/trim gauge. If you don't have one then of course it won't be connected. Can't find the other wire. What type speedometer do you have? Pitot pickup??
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Just an update :
Took down relay off to check for corrosion on posts ... clean as a whistle !!
First step ... switch relays with each other to check and see if the down relay is fried. If it is, then --
Next step ... remove both relays & replace with new ones (on the advice of members here & my local Merc dealer mechanic).
I'm doing the switcheroo just to make sure it's not something else, along with a bad relay.
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On another note : I did find a dark brown with white stripe wire with a male connector ... that wasn't plugged into anything. And a light brown or cream colored wire with female connector, also nothing connected to it. Both connections LOOK like they would fit together ... but there's no fuse connection or shrink tubing on either wire, like there are on the other wires in that area.
SO ... anybody KNOW what those wires are for, and IF they are supposed to be connected to each other ?? I don't want to connect them, just because they LOOK like they should be connected, and take the chance of blowing something up when I put the battery back in and fire it up
Now ... my speedometer did quit working last year, for no apparent reason. And that was my first thought of what it could be the connection to, but will defer to someone more qualified/knowledgeable on these matters.
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Brown/white goes to the tilt/trim gauge. If you don't have one then of course it won't be connected. Can't find the other wire. What type speedometer do you have? Pitot pickup??
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va
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OK, thanks Bill .... no, I don't have a tilt/trim gauge, so that accounts for that wire.Originally Posted by Barnacle Bill
I found this : Wiring Color Codes for Mercury & Mariner Outboard Motors. ... so I'm thinking the cream (tan?) colored wire is for a temp gauge and/or temp warning horn. I know the low oil warning horn connection works, because it's gone off before ... but, since I didn't see any place or wire that this wire could connect to, I'm going to check much closer on my next visit to the boat.
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Since your warning horn is working OK then I would agree with you about being the temp gauge.
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va
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So, you think I don't need to worry about those wires, and just leave them be, as is ... ??
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Bill, I'm sorry ... I meant to check on the speedo when I went to install the new relays, today, and completely forgot.
ANYHOO ... new relays are in and all is well with the tilt/trimyay !!!
And since I already know the top speed of my boat (via GPS) and I don't fish waters with a speed limit ... I'm not really missing the speedometer.
Now all I need to do is clean it up a bit, and have one of the trailer tires looked at (it leaks air) ... and it'll soon be Crappie Chasing Time !!
Keeper
You can get relays at auto parts store same thing happened to mine they're much cheaper than oem
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Not sure if you checked this, but my speedometer intake on the front of lower unit always gets plugged and I just clean it out with a very small drill bit. I just lightly twist it in with my fingers, not on a drill, and it pulls the debris out.Bill, I'm sorry ... I meant to check on the speedo when I went to install the new relays, today, and completely forgot.
ANYHOO ... new relays are in and all is well with the tilt/trim
And since I already know the top speed of my boat (via GPS) and I don't fish waters with a speed limit ... I'm not really missing the speedometer.
Now all I need to do is clean it up a bit, and have one of the trailer tires looked at (it leaks air) ... and it'll soon be Crappie Chasing Time !!
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I heard about that, but couldn't find any that were "hooded" ... they all had exposed connector prongs. I also read where some had used the auto type relays and they didn't last very long.
I found OEM replacements at a local Merc dealership, and at the same price as online venues. If these last as long as the old ones (almost 18yrs) I will consider their price a bargain. And I'm keeping the "good" one as a backup.
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Thanks, I will check mine to see if that's the problem !!
