Earth Leakage? - MVAgusta.net
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post #1 of 25 (permalink) Old 03-23-2012, 07:26 AM Thread Starter
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Unhappy Earth Leakage?

I've just had a major problem with my 2006 Brutale 910R:

Rode her home - everything seemed fine - Then:

Keyed her off and as I'm walking away I notice the integrated rear blinkers/brake lights are lighting up, on and off, like its fucking xmas.
The front blinkers then decide to join the party turning on and off at longer intervals.

Walk back over and hear the fan coming on and off randomly.

All while the bike is off and the key's in my pocket.

Take the Pilli seat off and the connectors/wiring to the rear lights are red hot - almost melting the plastic.

Anyone have any suggestions???
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post #2 of 25 (permalink) Old 03-23-2012, 07:30 AM
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Post Pull the fuses ?

Sorry mate, I would have said SPU, but with all the wiring so hot I would look for a short somewhere near the indicator wiring.
But if the fan came on too I might say look at the SPU.
I am sure the other Brutie guys will follow shortly.

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post #3 of 25 (permalink) Old 03-23-2012, 07:33 AM
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I'd start looking for a major ground (earth) in the wiring harness. Carl (I think) had a great picture on here somewhere of some wiring loom damage due to rubbing.

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post #4 of 25 (permalink) Old 03-23-2012, 07:45 AM
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Quote:
Originally Posted by Big-Nig View Post
I've just had a major problem with my 2006 Brutale 910R:

Rode her home - everything seemed fine - Then:

Keyed her off and as I'm walking away I notice the integrated rear blinkers/brake lights are lighting up, on and off, like its fucking xmas.
The front blinkers then decide to join the party turning on and off at longer intervals.

Walk back over and hear the fan coming on and off randomly.

All while the bike is off and the key's in my pocket.

Take the Pilli seat off and the connectors/wiring to the rear lights are red hot - almost melting the plastic.

Anyone have any suggestions???

Disconnect the battery and have a nice cold beer...

Then have a look for the short..

lucky thing you spotted that.

joe
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post #5 of 25 (permalink) Old 03-23-2012, 08:11 AM Thread Starter
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Im having a very strong Bourbon right now thanx Joe.
Mainly 'cause I fear silentservice703 could be right -
Although I'm praying that Donsy first guess is!

The thing is when I discovered the flashing lights, I had just rode her home from a major service.
I had the mechanic look at one of the break lights that had been flickering a little previously.
They did and said it was just the LED.

The wiring under the pilli, although neat and heat wrapped, is all pretty bunched up.
So again Donsy lets hope it is option A. I can't afford to be paying for hours of investigative work
to be done on the loom trying to find the problem.
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post #6 of 25 (permalink) Old 03-23-2012, 08:32 AM
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SPU.....notorious. Full of relays that control all the things you have staying on. Corrected in later 2007 models.

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post #7 of 25 (permalink) Old 03-23-2012, 08:57 AM
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You should hope Chuck is right and Donsy's wrong. The SPU is a lot more expensive than the wire harness.

Luckily for you I have an SPU from your year and model bike and a wire harness if you need it.
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post #8 of 25 (permalink) Old 03-23-2012, 09:14 AM
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What CAG?!?! YOu have MV Agusta parts?

What DONT you have?
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post #9 of 25 (permalink) Old 03-23-2012, 09:19 AM
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post #10 of 25 (permalink) Old 03-23-2012, 09:24 AM
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Quote:
Originally Posted by Big-Nig View Post
I've just had a major problem with my 2006 Brutale 910R:

Rode her home - everything seemed fine - Then:

Keyed her off and as I'm walking away I notice the integrated rear blinkers/brake lights are lighting up, on and off, like its fucking xmas.
The front blinkers then decide to join the party turning on and off at longer intervals.

Walk back over and hear the fan coming on and off randomly.

All while the bike is off and the key's in my pocket.

Take the Pilli seat off and the connectors/wiring to the rear lights are red hot - almost melting the plastic.

Anyone have any suggestions???

I'm gonna rack my brain cell and think about this a bit.

Logically , If it's occurring with ignition off then there could be a leak to earth from the +ve cable down to starter motor solenoid. I'd look there first. Not saying its definitely that but I believe you have power going through the frame the wrong way..

After that the next place I'd look is the ignition switch and associated wiring for a short to earth.

Question..Is the SPU energised only with the ignition switch in the on position ?

I know on the F4 the +ve cable passes ferkin close to the frame..

Check for a direct short by disconnecting battery and putting an Ohmmeter across the cable terminals ie not across the battery ). If you get a figure close to zero Ohmms you have a direct short.

joe

Last edited by gotojoe; 03-23-2012 at 09:34 AM.
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