I tried pulling the clutch in a few times but it didn't seem to help. After reading a recent post I think I might be running too heavy of an oil. I have been using a 80w oil from Belray. http://www.belray.com/consumer/product.fsp?pid=13636 I've been using this oil for some time now. Should I switch to a lighter weight & see what happens? How will the small amount of old oil mix with new lighter oil?