Switched poles on battery on F4 1000S-what happens? - MVAgusta.net
 
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post #1 of 8 (permalink) Old 04-09-2009, 04:17 PM Thread Starter
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Switched poles on battery on F4 1000S-what happens?

A guy that bought an F4 1000S from my dad last year was working something on battery(it probably died over winter) and when he was to attach cables on the poles, he somehow switched them, some sparks we're flying and the bike is dead. Nothing happens when the key is turned.
I haven't seen the bike yet, we are getting it to take a look and do regular service over weekend.

What is worst case scenario? Fried ECU? Or just some relay?

Anyone had experience with case like this?

Thanks.
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post #2 of 8 (permalink) Old 04-09-2009, 04:19 PM
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Blew a fuse and possibly the diode.

ECU should be ok.

Sparks are usually a bad thing.
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post #3 of 8 (permalink) Old 04-09-2009, 04:23 PM
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that happened to me once...
A fuse was blown.I think i was lucky 'cause others blew their ECU.

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post #4 of 8 (permalink) Old 04-09-2009, 04:45 PM Thread Starter
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May I ask which fuse? For battery filling?
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post #5 of 8 (permalink) Old 04-09-2009, 06:03 PM
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If the key was off, probably just a fuse. If it was on yikes!
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post #6 of 8 (permalink) Old 04-10-2009, 12:54 AM
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It could be the 40amp fuse on the left of the bike, under the side fairing, there should be a spare in a little holder near the blown fuse and it will definitely be the diode that is located on the next electrical device just towards the front of the bike!

Happened to me and the service centre did it also!

Remember negative to earth and when you put the battery in back to front you are thinking it is in the correct way BUT the leads are barely long enough and it takes a bit of effort to connect them.

If you put replace it with correct polarity the leads connect up easily!

The diode only costs a few cents!!

40 amp fuses are hard to find, I ran mine with 30 amp fuses for quite a while and that reminds me I must replace my diode this Easter!

It's only there for silly dicks like me who puts the battery in back to front!!!

MV Agusta 1000S 1+1 (2004); Suzuki GSXR 600 (2005); Honda CB750; Honda CB175; BSA 350 (1939) ;
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post #7 of 8 (permalink) Old 04-10-2009, 01:30 AM
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40amps are hard to find at auto parts stores, but readily available at electronics part stores, like radio shack.

B4 750S [sold]
B3 675R [waiting]
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post #8 of 8 (permalink) Old 04-10-2009, 03:47 PM
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I did the same thing last summer and had to change the diode. I had to buy like 20 and it was only like 2 bucks I got them off e-bay but if you would like I'll send you 1 free if you want just send me your address.

2005 f41000s 1+1
1999 Buell X1 lightning
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