Clutch-knocking???????

[jason1]

Hi , All noticed recently that when starting bike there is a knocking coming from the clutch , you can here it and feel it more from the gear selector side. The knocking is still apparent even when warm too . When i fully engage clutch hot/cold engine, the knocking stops , release clutch its back  :eek  clutch is working fine and have double checked adjustment and its fine across the rev range. Also even in higher gear when going slow , she still pulls without slipping .
No history on clutch and i have never fitted a bike clutch before ( done many cars in the past tho) Any ideas would be great  mokin :faz mokin