Yamaha XJ 900 F normal acceleration 

above 7k rpm it vibrated like hell. Never figured why since I sold the bike after the video. There was not so much of s push either after 7k.

@@jurmala999 there is a big push after 7k. Bike is asleep until 7k...I've had 3 haha. You need to ring it out to get the power out!

​@@jurmala999 Riding the same bike currently as a daily commuter and I also think it vibrates like hell. In my experience vibrations are peaking at around 3500-4000 but the bike gets steadier again at 6-7k. To say that it´s "asleep until 7k" sounds like a bit of an exaggeration since the bike redlines at 9500.

What year model?

@@FrankyBmagic certainly wasn't an exaggeration, and it reclines at 9 but ot revs to like 12!? Like I said, asleep to 7k. Ride it properly using the rev range and you'll know what I mean...