ok guys when i recently purchased the bike it had been stood for some time so i gave it a service
new oil filter and quality oil, k&n air filter, but after that the brakes where crap so i did them as well with ebc double h pads all round
then i took it for a good ride and suffered bad vibes around 90 mph. so new front wheel bearings along with new front tyre and wheel balanced
much better but still getting buzzy vibes from 6k rpm onwards any ideas?
thanx

 

Are you feeling the vibes through the handlebars, footpegs or seat?

Few things can cause vibes.

Carby's out of synch. Some can need re-synching every 10,000.

Rooted drivechain & sprockets.

Dud sparkplug.

blocked jets in te carby's

Check those out 1st.

 

changed plugs so there fine
vibes are through bars pegs and seat
will check carb sync asap