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#11872085 - 10/09/16 01:24 PM Yamaha fs150 fuse question.
captaincam3 Offline

Registered: 12/30/08
Posts: 327
Loc: FTW
had to get 2 new cranking batteries at the lake a couple of weeks ago.

during the replacement I blew the 50amp fuse. Not knowing this at the time, I crossed the wires differently to get fire to motor thinking that I had them wired wrong. Doing so, things got really hot in a hurry. I melted the posts off the new batteries and melted the lead that joins the 2 batteries.

yesterday I replaced burnt leads and replaced battery switch and re wired correctly. No power to motor. I noticed 50amp fuse blown. replaced it. Trim worked.....Yes.... turned the key.. boom nothing. Now I the 20 amp trim fuse blows every time I turn the ignition.
Any recommendations out there?

Another question. the 2 new batteries are interstate cranking batteries. we are getting 26 volts to the starter. Do these batteries have too much cranking amps. for outboards.

Thank you in advance
2012 Nautic Star 2200 Sport

#11873116 - 10/10/16 06:33 AM Re: Yamaha fs150 fuse question. [Re: captaincam3]

Registered: 10/03/06
Posts: 76
Loc: Azle Tx.
You have 26 volts on the starter? I believe this is a 12 volt system! Batteries are hooked up wrong. Why have 2 batteries for starting. Check label on starter for voltage, trim motor probably burnt up. Good Luck.

#11873142 - 10/10/16 07:14 AM Re: Yamaha fs150 fuse question. [Re: captaincam3]
Cast Online   content
TFF Celebrity

Registered: 07/31/12
Posts: 8273
Loc: North Texas - God's Country
Your batteries are hooked in series. They should be in parallel. You need to slow down before you do some serious damage.

#11873303 - 10/10/16 09:16 AM Re: Yamaha fs150 fuse question. [Re: captaincam3]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11423
Loc: Littlefield Tx & Lake A. H. US...
Too late.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD

#11873431 - 10/10/16 10:20 AM Re: Yamaha fs150 fuse question. [Re: gary purdy]
2015fordnut Offline
Extreme Angler

Registered: 06/24/09
Posts: 1875
Loc: Garland, TX
Originally Posted By: gary purdy
Too late.

Once the smoke gets let out it can't be put back in.


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