My clutch use to squall like a stuck pig. I performed all the mods that BerkyBoy explains in the top thread, and i started using Rottela T in the trans-- presto no more squall or herky jerky clutch. I had the 4 stroke clutch basket on my bike so opening that up made a big difference Im sure. I also made the holes in the inner hub about twice the stock size. You might start by just using the Rottela t and see if that helps.