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Raycaster

Mercury 2003 25HP 4 Stroke loose wire?

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Took cowling off to perform maintenance stuff on (new to me) engine.

After oil change etc. I notice 2 wire on front of engine unattached.

I get all wires are not needed but these 2 had connector ends (female and male) and looked worn and previously connected together.

Common sense says they belong together but without the manual I don't want to screw anything up Until I can hunt down a manual I thought I'd post some pics here if maybe someone has the same engine or has worked on one.

The wires are BROWN and DARK BROWN.

Thx ahead.

 

20200602_133439_HDR(1).jpg

20200602_133423_HDR(1).jpg

20200602_133429_HDR(1).jpg

Edited by Raycaster

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So ,I guess you dropped the dime and bought the boat ?

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Yes, well I did listen to 90% of the members here thinking it was too small.

But, I left out a lot of personal info and $$$ direction that in the end was the final decision.

Basically, this is way more than hoped for and at the end of the day a 50-60hp option was really light years away.

Darn, I was hoping to slip this thread in without anyone noticing!

 

Edited by Raycaster

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Thank you for url.

The Female connector is BROWN

The Male connector is BROWN + WHITE STRIPE

They are at front basically right beside each other, as mentioned the connectors are worn and look like they are a prefect fit.

20200602_203703_HDR.jpg

Edited by Raycaster

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4 hours ago, Raycaster said:

Darn, I was hoping to slip this thread in without anyone noticing!

 

Nothing to hide! Congratulations on your new purchase. Hope you love it and catch a boat load!

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Thx grimsbylander! The reason I was inquiring about this possible loose connection was because after all the maintenance the engine would no longer hold idle! I had a great friend try to relax me off the cliff edge and go through the diagnostic checklist.

Long story short, either the previous owners gas tank had bad gas (water) or I bought bad gas. Cleaned tank and lines and purring again, happiest boat owner anyone has seen!
 

Now still have to research those 2 connector and replace plugs (strange 18mm size?) but things are looking up.

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If you go to the chart, Blue/White and the Green/White are trim up and down..if so equipped.  Some motors will have all the wiring without the option being present.

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The engines trim works perfect.

Going by the chart it could be temp sensor stuff (ohiofisherman) if the brown is actually tan.

The brown/white is ???.

The engine is purring and impeller working strong but I’m still looking.

Thx for everyone’s help.

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