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Brutale 990R: Engine buzzing with contact on

3K views 17 replies 5 participants last post by  jones525 
#1 ·
Hi guys...
During the last days I am experimenting a strange situation when trying to start on my Brutale.

I move the key to the on position and let the bike makes the checks before start it...but when it finish...you can still hear a buzz from the engine that never stops...it is like a "piii..trrrr...piii...trrr". When pushing the stat button..the bike starts with no problem.

Anybody knows what it is this strange buzzing sound????
 
#5 ·
I have been talking with my MV dealer and they say it is probably the fuel pump, as maximustinnitus previously commented...but...they want to see the bike...maybe because it is not normal...
 
#8 ·
Um, no...

My 1090 does not do that. There is a high pitched wine, kind of like the high voltage when the TV is on, but nowhere near that. That sounds like the servo motor for the exhaust valve if the 990's have them. Look down on the right hand side of the bike by the exhaust and see if the cables on the servo are moving in unison to the noise...
 
#11 ·
My 1090 does not do that. There is a high pitched wine, kind of like the high voltage when the TV is on, but nowhere near that. That sounds like the servo motor for the exhaust valve if the 990's have them. Look down on the right hand side of the bike by the exhaust and see if the cables on the servo are moving in unison to the noise...
Jones, the 990 have exhaust valve and I am agree with you that this sound comes from the unit that controls this valve...
 
#15 ·
Jones, thank you for the information...now the problem is identified. I have been talking with my dealer to solve this issue.

Thanks again!
 
#17 ·
Hi guys...

Good news...Finally, it just a wire that was slackened...so problem solved.

Let's see what it next!

Thanks all for your help.
 
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