Clutch still slipping after install

[A-star]

So i searched and serched and i did tried all of the solutions that were found, but none helped. Heres the problem. I have a 05 r1 all stock. I tried lanching it from a stop and it started slipping so i adjusted the cable and it was working. I tried launching again a month or so later and it started slipping again, but adjusting it didnt help. So I bought the oem fibers and steels from mccoys and the stiffer springs. I installed them, put everything back together and took it out for a ride. It started slipping when i punched it, and when i stopped, there was no free play in the clutch lever. So i adjusted it and there is freeplay but it still slips. What could be going on here?

[james1300]

Are the metal plates warped?
>Is the center clutch hub 'notched' and not allowing the clutch pak to engage properly?<
Did you soak your plates in oil prior to installing?

[Perptr8n]

What kind of oil are you useing?

[A-star]

The metal plates are not warped they are brand new also. I soaked the fibers in oil for about an hour and fifteen minutes prior to installing them. The oil I am using is castrol R4 superbike fully-synthetic motorcycle oil.

[Perptr8n]

It might be the synthetic, I know it says that it can be used but I would try a reg Yamaha 10-40, you might have to change it a couple of times, I have had friends who had the same problem when they used a syn. oil.

[A-star]

But how long after they put the synthetic did they start slipping? Because i had put that fully synthetic in about 2000 miles before that day that it started slipping.