Vibrate ? - MVAgusta.net
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post #1 of 7 (permalink) Old 07-31-2017, 10:19 PM Thread Starter
AJ1
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Vibrate ?

I've noticed the engine vibration starting from mid rpm

Normal?
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post #2 of 7 (permalink) Old 08-01-2017, 02:51 AM
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What bike? What year? What revs?

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Kageira and Kageira like this.
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post #3 of 7 (permalink) Old 08-01-2017, 09:43 PM Thread Starter
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F3 800, 2015, 6-7k
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post #4 of 7 (permalink) Old 08-02-2017, 02:32 AM
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AJ1,

Can't comment on your specific model but my 2009 1078 vibrates (felt through the bars) at about 5000/6000rpm. This is at our legal 100km/hr limit and a bit of a pain in the arse. Not many bikes around, especially one's that I've owned, that don't have a vibration period that is annoying to the rider at some usually used speed. So on that count I'd say it's pretty normal. Having it balanced would be an expensive fix so most of us live with it.

However I changed bars to Rizomas and that probably made the vibes worse. So I added weights up inside the bars that I machined from s.s. Probably were'nt more than 150g each but it was an improvement. Then when I added bar end mirrors it really improved things. These were a cheap Chinese copy of CRG's but had a bit of weight and you could actually see out of them so no vibration, or minimal. Heavier than the std. bar ends. Mirrors were crap and when one shit itself I got another set. However these are much lighter and vibration again.

Latest fix was to pour about 250g of shotgun pellets I had in a jar down the bars. Big improvement. Next I'll track down some more and fill the bars.

So there are a few solutions available some cost more, others take more time and fucking around. Or just ride with it.

Cheers

Deano
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post #5 of 7 (permalink) Old 08-02-2017, 03:40 AM Thread Starter
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Deano,

Thanks...worst case is the ducati, the F3 is not that bad

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post #6 of 7 (permalink) Old 08-02-2017, 05:42 AM
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Deano, maybe get the crucible one would use to cast projectiles or fishing sinkers (if you do make your own) and heat up some lead before pouring it into the bars?

Nice and heavy eh..?

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post #7 of 7 (permalink) Old 08-02-2017, 07:50 AM
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albymangled,

Yeah used to cast my own mini balls when I shot black powder. This was going to be my next try after the shot. But once you fill it full of molten lead you're stuck with it, whether it works or not. I think the shot will be the best as there's thousands moving against each other and hopefully cancelling out the worst of the vibration.

Cheers

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