| It's the 750SS you've got, is that right? Which is wet clutch as far as I remember. Either way, doesn't really sound like clutch wear issues. Maybe it's just clutch fluid/operation that needs refreshing and/or bleeding.
When the dry clutch starts to go, you hear a prounced grauching sound particularly on moving away and when the power is put on hard, the clutch slips and the revs rise without the power. | 
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