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Old 06-15-2013, 09:26 PM   #1
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Question Starter fuse question. (pic?)

Im an idiot and blew my 90 amp starter fuse. After purchasing another I'd like to not blow it again! I have viewed the wiring diagram.

From my understanding the black wire gets bolted onto the post on the back of the fuse.

But since I didn't pull it out, I'm not 100% on where the positive wire goes. The other post on the solenoid ? (the post that the fuse is not on?).

Can anyone help or have a picture of it hooked up?

Thank you!
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Old 06-15-2013, 10:06 PM   #2
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this is the 80 amp fusible breaker.

this is bolted to your positive terminal on the starter, and the only thing that is wire to it, is your black engine harness wire.

This keeps your boat wiring from getting fried.

if you are blowing this, your have a short, or your running your boat on "BOTH" batteries, which you should never do, per your mercruiser manual.

So, tell us what kinda boat it is and the engine your have and we can figure it out....

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Old 06-15-2013, 11:17 PM   #3
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Thanks for the response!

Those are the style of fuse I have.

It is a v6 mercruiser. Someone took it out for me while I was doing other work and I have the new fuse, a thick positive wire and a black wire. I know where the fuse goes, but Im not sure where the two wires go.

- Joe
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Old 06-16-2013, 01:10 PM   #4
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It's an 1800 sr, 2005.
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Old 06-16-2013, 01:51 PM   #5
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the thick positive wire goes on the start positive post, then the 80 amp breaker goes on the same post, then put the nut on the post...---- then you connect the little black wire to the nut on the 80amp breaker......

this is a power limit breaker, so you don't burn your harness.

thats it.
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Old 06-16-2013, 06:03 PM   #6
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Here's what I did:

1. Put the positive cable on the starter post
2. Attached the negative to the back of the fuse with the lock nut.
3. Fastened the fuse to the same post as I put the positive wire on.
4. Re-installed battery

I did have power at the dash which I didn't before and I quickly cranked the engine to ensure power. I got out, put the earmuffs on, turned the water on, got back in, turned over the key and everything was dead again.

Any suggestions?
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Old 06-16-2013, 06:04 PM   #7
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Oh and it was a 90 amp Mallory fuse that I had purchased.
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Old 06-16-2013, 06:19 PM   #8
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No.. no negative on the fuse.


the fat positive to the starter, and the fat navigate to the starter.


the little black is actually the power for the engine harness, that why its behind the breaker.....
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Old 06-16-2013, 08:39 PM   #9
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Quote:
Originally Posted by pascavone View Post
No.. no negative on the fuse.


the fat positive to the starter, and the fat navigate to the starter.


the little black is actually the power for the engine harness, that why its behind the breaker.....
Ah that's what I did. Sorry for my confusion. I don't think the negative ever came off the starter. Red went on the post, black with a smaller eyelet went on the fuse.

Also thanks so much for helping!
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Old 06-16-2013, 10:47 PM   #10
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Ok,

put a new fuse back on top of the starter, and before you try to start it, REMOVE ALL THE LITTLE FUSES OUT FROM UNDER THE DASH, AND REMOVE EVERY EXTRA WIRE OFF THE BATTERIES. There are also fuses in little water proof holders around your battery switch.

(some items are direct wired to be batteries, like the carbonmonoxy detector, outdrive pump, and the bilge pumps.

Try starting the boat again, and insert fuses, one by one under the dash until you fine the circuit that will blow the fuse.
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