Transmission noise

[asdfghwy]

Just bought the bike, it has been sitting for a while. 1998 fzr-600. After letting it warm up for about 10 minutes if I pull the clutch in and shift to 4 / 5 / 6 it makes like a rattling type noise and when I engage the clutch it gets worse. What could this be? It doesn't always happen for 4 / 5 / 6, sometimes its just 5 and 6 sometimes it just 4th. I really don't want this to be anything major!

[tkclow]

How many miles on the bike? Could be the bolts on the clutch basket are loose. You will have to pull the side cover and check. I am sure some of the other guys will chime in.

[sweekster]

It's been sitting...you change the oil yet? Have you checked the front sprocket to make sure it's not loose?

[asdfghwy]

Guy who sold it to me said 15k, but I don't believe it. It has a new speedo so mileage is innacurate. I did do an oil change to it, and it alleviated a lot of wierd noises transmission/engine wise. I'm going to be installing sprockets / chain soon so I will have the side cover off soon to be able to take a look. I hope it's something easy like the front sprocket being loose or clutch basket. Any other suggestions before I assume its transmission problems? That would be a real downer because I've been waiting to ride this bike for awihle and that would set me back a bit