False Neutral Brutale 750 - MVAgusta.net
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post #1 of 11 (permalink) Old 01-02-2009, 01:14 AM Thread Starter
False Neutral Brutale 750

Hi,
Does anyone know of a problem with the gearbox on a Brutale 750 going into false neutral between 5th and 6th gear. Mine seems to do it fairly regularly. If so is there a fix?
It's a 2003 model done around 13k kilometers
Cheers

Craig
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post #2 of 11 (permalink) Old 01-02-2009, 01:29 AM
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i think a few people have had this happen. It did on my 910. Seems to have gone away, haven't hit that in a year or so.


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post #3 of 11 (permalink) Old 01-02-2009, 01:55 AM
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Yeah that's normal. I think it's due to oil sticking the 5th and 6th gears together?

No "fix" as such, just make your change a solid movement and positive preload helps.
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post #4 of 11 (permalink) Old 01-02-2009, 06:51 AM
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Same here, I just learned how to yank on the shifter when I get up there. I was thinking that if there was a way to convert it to a race shifter that maybe would make a difference.
Just thinking out loud!
Or maybe now that HD took over we can use one of their heel shifters!

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Last edited by La Rossa; 01-02-2009 at 06:54 AM.
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post #5 of 11 (permalink) Old 01-02-2009, 09:24 AM
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Ditto! To all the above.

B750 and B1078 RR both gone now.

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post #6 of 11 (permalink) Old 01-02-2009, 10:20 AM
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Quite common for 5th to 6th transition to be "sticky" on many bikes, especially higher performance bikes. A lot has to do with engaging dog tolerances which are very tight in higher gears to reduce drive train lash. You will also notice that the sensation or possibility of a "missed shift" is much lessened at higher RPMs....but , of course, you will be going way too fast on public roads at those engine speeds.

A positive toe is required to ensure full engagement before releasing pressure.

So, bottom line...it is not an MV problem, or a problem with your bike. You might experience the same thing on Hyabusas, ZX10s, YZR1s, etc.

I used to be fast....now I just dream about it.
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post #7 of 11 (permalink) Old 01-02-2009, 12:09 PM
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Quote:
Originally Posted by esq'z me View Post

So, bottom line...it is not an MV problem, or a problem with your bike. You might experience the same thing on Hyabusas, ZX10s, YZR1s, etc.
Ducatis don't have that problem! Plenty of others problems but not that!

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post #8 of 11 (permalink) Old 01-02-2009, 11:07 PM
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Quote:
Originally Posted by La Rossa View Post
Ducatis don't have that problem! Plenty of others problems but not that!
That's cause they have a lot of gear lash and don't rev as high

....actually, you might be able to experience this on a Duc.... if you look for it. It is symptomatic of the constant mesh transmissions common to all modern motorcycles...you just have to get the right parameters in place.

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post #9 of 11 (permalink) Old 01-19-2009, 04:11 PM Thread Starter
Thnanks for the replies, thats a great help. i'll give it more of a shove :-)
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post #10 of 11 (permalink) Old 03-18-2009, 12:41 AM
 
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Missed Shift experience/QUESTION

I have a brand new Brutale S, now with 1000kms on it.
I have had a problem 3 times now with missed shift/false neutral between 5th and 6th gear.
i understand there is nothing wrong with the bike.
Remedies are more positive gear change, preloading and changing in higher revs.
My question is
What do I do when I have missed the change? Do I clutch in and change up/down or clutch in and come to a stop?
is the rattling sound I can hear at the time damaging?
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