I have a cbr600f(f5) "05 plate) 5000 miles. I have been told that the clutch is dragging by a local shop. When you pull away in first gear and then pull clutch in, if you then rev the throttle the chain flaps and you can feel it on the main drive sprocket as if the clutch is engaged slightly.This happens in all gears. I have taken clutch out and its all fine with no signs of wear, no warping or plates sticking together. local shop said to put it back as its my oil at fault. I have spoken to previous owner who said he ran it on fully synthetic oil and i recently changed oil and not knowing changed it to semi, so I have done another change reverting it back to fully. The problem is still there and I don't know what to do next......

Please Help!!!!!

 

what kind of oil did you use?
synth be it full or half or mix has very little to do with the clutch slipping provided that they are all wet clutch compliant.
the oil that you buy has to have some kind of rating for wet clutch
cant just put random motor oil in there and expect it to work.
you might not see any signs of wear but if your pressure plates are soaked in regular oil then they are done.

 

I just use the castrol motorcycle oil for sport bikes. You cant go wrong with it, and that way you know that if there is a problem its not your oil because you used one engineered for sport bikes.

 

I would start by adjusting the clutch cable, it sounds like its loose or stretched.