Ducati Monster Forum

Moto Board => Tech => Topic started by: alberto22 on May 14, 2009, 04:30:48 AM

Title: bike vibrates more then before
Post by: alberto22 on May 14, 2009, 04:30:48 AM
Dear all,

First of all: great to have a real monster forum, especially for ducati monster addicts!

I have a 600 cc Ducati Monster and I often work on it myself.

But it now vibrates (on handlebars) more then before. I really feel the engine vibrating. It almost feels like a Harley.

What could be the problem.

Which elements make that you don't feel the vibrating of the engine or maybe that the engine itself vibrates less.

If I can identify these elements I could check them for wear!

Do the caps on the end of the handlebar reduce vibration? Are there any anti-vibration elements (like the ones on the exhaust) that should be replaced?

Thanks in advance!
Title: Re: bike vibrates more then before
Post by: ducpainter on May 14, 2009, 04:35:47 AM
To the best of my knowledge there are no replaceable anti vibration pieces.

You say you do your own work....

what have you done lately?
Title: Re: bike vibrates more then before
Post by: junior varsity on May 14, 2009, 09:39:45 AM
Removed bar-end weights or installed lightweight flywheel recently?
Title: Re: bike vibrates more then before
Post by: Speeddog on May 14, 2009, 10:10:38 AM
Check the motor mount bolts, make sure they're torqued to spec.

And +1 on what you've done recently...
Title: Re: bike vibrates more then before
Post by: junior varsity on May 14, 2009, 10:48:38 AM
Hmm... motor mount bolts seems really logical, so I +1 that, if they are a little loose, there would room to vibrate where there wasn't any previously, which would be felt rather substantially.

Also, is it when the bike is simply stopped, and idling; or is it only while moving?
Title: Re: bike vibrates more then before
Post by: erkishhorde on May 14, 2009, 12:29:13 PM
Switching from bar end mirrors back to the normal mirrors mounted by the brake/clutch levers will increase vibrations because it's taking weight off the end of the bars.

Valves being out of spec will increase vibrations as well.
Title: Re: bike vibrates more then before
Post by: dragonworld. on May 14, 2009, 04:11:40 PM
Just a thought?? ???

Get yourself am oil pressure testing gauge and check the hot/cold pressure against the Ducati specs!! ;D

If they are low you just might have worn crank bearings, which can cause vibration!  :o

A lot of home mechanics neglect to do this check and its a good way to keep an eye on your err, umm "bottom end"  [evil] [thumbsup]