Vibration above 4600rpm?

[justin726]

Well, I've had my 40th edition for right at two weeks now and have been working on the break in. Just over the weekend (Fri. and Sat.) I put on 600 miles going from 450 to 1050 miles. Riding all this time, and as I go more mile put on, I noticed that right at about 4600rpms a definate vibration starts in the motor. Under this point, the motor is as smooth as you can imagine, but right around this 4600rpm mark a vibration suddenly shows up. It's doesn't seem like it is a very bad vibe, but just more of an annoying buzz.

I was just curious to see if ther is anything machanical inside that might kick in right at that point. Or is this just a normal part of the Busa. I didn't notice this right at first because I was really taking it easy and hardly spent any time above 4600rpm.

Am I just being overly cautious or is it something that I should have my dealer check on when I stop in there this week?

 

[jwcfbd]

 Or is this just a normal part of the Busa.  

Yes, this is just a normal part of the Busa.

 

[FLCN72]

Afraid so, it is normal. But it is a very narrow band in the RPM range. So it is easy to cruise at a different speed or in a different gear to avoid it. It lets me know when I am breaking 90 MPH on the free way and to slow down a bit.

 

[justin726]

I know you can't hear it, but I'm breathing a big sigh of relief.   Thanks.