AMA Supersport Racer
Join Date: Dec 2011
Location: Lexington, Kentucky
Thanked 102 Times in 84 Posts
Feedback Score: 2 reviews
The clutch is a service item that will eventually go out. It really depends on how its been used. Some could last up to 50k miles I believe, but if you drag race or launch off every light then it will be significantly less.
Once the clutch engages and you're moving, if you give it a good bit of throttle do you notice that your speed seems to increase a lot slower than your RPMs? That is another characteristic of a worn clutch.
What concerns me about your description is the fact that it studders and knocks. I've never had to replace a clutch either, but from the knowledge I've gathered here, you typically just end up revving really hard to get it away from the line until your worn clutch engages. The knocking and studdering doesn't seem right.
But that being said, you don't replace the entire clutch assembly. There are steel plates, friction plates, and springs that may be needing replaced. Typically runs a little over 100$ for a new pack of plates I believe. That's not to say you couldn't have broken something, and based on your knocking and studdering problem, I would give it more investigation before you ride it again.
'03 600 RR - ~33,000 miles (14,000 from me)
Yoshimura RS-5 Slip on - Arrow Stainless Headers - BMC Street Filter - PCV - EK 520 Chain on Driven Sprockets - CoreMoto Stainless Lines (F+R) - Dan Kyle PAIR Delete - The2Wheels Shorty Levers - Vortex V3 Rearsets - Woodcraft Frame Sliders & Bar Ends - Woodcraft Stator and Clutch Covers - Cox Radiator Guard - Renthal Dual Compound Grips - 1000RR Kill Switch and Throttle Housing - TST IT and FE - Proton Flushmounts