I have that same "vibration" issue, but since I don't feel it when I'm on the twisties, I chalk it up to normal. I'm on stock grips and foot pegs though too.

I lost a bar end once, just a bad bolt, and holy cow, a world or difference they make when you ride without one for like 100 miles, and then get a new one.

My point: Suck it up and deal

And Jrzy, that epilpetic comment STILL has me laughing, even when I come back to the thread 6 minutes later.

 

Has anyone found a solution for this? I'd like to get the bike running smooth again. It almost feels like it's in the clutch/transmission.

 

I "accidentally" stumbled upon a half-decent solution for the inline-4 high frequency vibration - when I installed my Oxford Hot Hands 'wraparound' grips ... see below:

http://cgi.ebay.com/ebaymotors/OXFOR...Q5fAccessories

This isn't obviously the best solution, because I originally intended to buy the Oxford Hot Grips, not these wrap around 'hot hands' ones, but these wrap arounds turned out to be quite a pleasure to use, and because they're soft, they've actually dampened the high frequency vibration a fair bit, which I've been told is unavoidable because of the inherent nature of inline 4's ....

I tried for quite a while find a heavier pair of bar end weights to try and counterbalance the high freq vibes, but could not find any heavier ones than the standard weights I have installed.

Also, I noticed the vibration is particularly bad around 4500rpm +/-500rpm. My main problem therefore is when I'm cruising on a slowish highway at 80-90km/h (50-55mph) without the soft hot hands; one way I counteract this is to upshift to 5th and have it rev higher; not ideal, but every bike is a compromise ....

So, if you need heated grips and you don't mind the soft wraparound version, it may just kill two birds with one stone ....

 

Be sure to eliminate the chain as the cause (tight and loose spots, kinking, holding a pound of dirt, etc.) Other than that squeeze the tank with you legs and use your stomach to hold you up in order to reduce the amount of pressure on your arms/wrists.

 

Hi,
Did you find any resolution for this?
I have the same thing, out of a suddent. My bike is a 2000 600F4

I have had an issue with vibration before. I have ridden 10.000 km on it this year. Then one day it came. The morning riding 140-160 km/t on highway there was no problems.
Then i wrote home from work, had a good fast ride on small roads. When i hit the highway and 140+ km/t I instantly felt it.

They are really anoying. It starts at the same as you, from 7000 RPM. At 8-9 it really gets bad and then continues out the scale.
If i pull the clutch it goes right away. So sure is something to do with the engine.

I have got new tires 1500 km ago and wheels balanced.
I can see that karburators out of sync also will give additional vibrations so i just bought a synchronizer and will sync them next week.
Furthermore i'll go bolts through for then engine and see if all are ok.
i'll take a look at the exaust pipes as well.

Do you have any other things to check for or how did you fix it?

 

8yrs old and OP only has 30 posts.....Im gonna go out on a limb and say he isn't here anymore.

 

You might be quite right about that :-) Just hoped he might be here or someone elers who had the problem could tell what they did

 

Chances are that its from the clutch basket rattling. Just as when the bike is at idle and the basket rattles and when the clutch lever is pulled in then the vibration and rattle goes away and that's why when he's at 7k rpm and pulls in the clutch the bike gets smooth again. At the most clutch cable just needs adjusting because its kinda stretched. Just my 2cents