Headlight on with No Key - MVAgusta.net
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post #1 of 15 (permalink) Old 01-16-2011, 01:18 PM Thread Starter
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Headlight on with No Key

The Brute has been stood for a while due to to the poor British weather.
I have been charging with the optimate only got one between three bikes so it gets rotated
Anyhow i have run it a few times and nothing was amiss but yesterday went in the garage and noticed the head light was on and appeared to be strobing.
I put the optimate on it went back after an hour and found the headlight was on.
I have disconected the battery and left the optimate on it.
It is damp with condensation in the garage so I have sprayed the fuses and conectors a round it with WD40 to drive any moisture out.

Anybody got an Idea where to look.
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post #2 of 15 (permalink) Old 01-16-2011, 01:30 PM
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Hiya mate I have a friend that had that problem so he asked me to look into it for him and he left the bike with me and after checking everything it turned out to be the fuse box and I know that it's commen on the Brutale and they have changed the fuse box now. I even think I have one in my tool box.
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post #3 of 15 (permalink) Old 01-16-2011, 08:21 PM
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Quote:
Originally Posted by trickydicky View Post
The Brute has been stood for a while due to to the poor British weather.
I have been charging with the optimate only got one between three bikes so it gets rotated
Anyhow i have run it a few times and nothing was amiss but yesterday went in the garage and noticed the head light was on and appeared to be strobing.
I put the optimate on it went back after an hour and found the headlight was on.
I have disconected the battery and left the optimate on it.
It is damp with condensation in the garage so I have sprayed the fuses and conectors a round it with WD40 to drive any moisture out.

Anybody got an Idea where to look.
As per other reply above.. if there is power to the bike with the key in the off postion (or even key out), then its most likely the SPU (fuse box on the right hand side under the tank) that has gone in the bike. Unfortunately you need to replace the entire fuse box...

The same thing happened to my 06 910R. The replacement part has been superseded with 8A00A9300. This is the updated/redesigned SPU from the 07-09 bikes. Its approx US$390.

Cheers, Simon


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Brutale 990R LE - Number 121/500
Brutale 910R

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post #4 of 15 (permalink) Old 01-16-2011, 10:01 PM
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Yep...stuck relay in the SPU.

I used to be fast....now I just dream about it.
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'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit), '71 CB100 (Lil' Red), '75 RD350C (Orange Bird) restoration project, '70 Suzuki F50 (Baby Blue)
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post #5 of 15 (permalink) Old 01-17-2011, 12:12 AM
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Vesuvio have been a good reliable (cost efficient source) for replacing the SPU

Tim
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post #6 of 15 (permalink) Old 01-17-2011, 04:31 PM
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your looking at around $400 US like stated above. Seems to be a pretty common problem

Adding power makes you faster on the straights, while subtracting weight makes you faster everywhere - Colin Chapman

2004 Brutale 750S
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post #7 of 15 (permalink) Old 01-23-2011, 01:10 PM Thread Starter
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Well took the CPU off and it is one of the later models so i have dismantled it. One of the solid state switches has overheated clearly see its been hot. I have a mate who owns a tool shop and in his spare time he races cars. He has an electronics guru who builds his ECU's so he has it now and is going to replace the switch. He does say though that the parts in it are obsolete and have been superseded. It will either work or not but I won't have lost anything

if you are interested I will keep you updated
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post #8 of 15 (permalink) Old 01-23-2011, 01:17 PM
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That's really unusual Tricky?? - what year is the Brutale?

We've only seen up to 06 and the very very rare 07 encounter the SPU problem?

Cheers

Tim
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post #9 of 15 (permalink) Old 01-23-2011, 01:56 PM Thread Starter
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Its an 06 910s
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post #10 of 15 (permalink) Old 01-24-2011, 05:59 PM
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Quote:
Originally Posted by trickydicky View Post
Its an 06 910s
Yep - as above: SPU - its the only fix. You will get the benefit of the new SPU as well.

Cheers, Simon


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Brutale 990R LE - Number 121/500
Brutale 910R

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