This can happen on a cable operated clutch linkage where you can have several adjustments, not only on the clutch release mechanism, but also on the cable and lever to compensate for wear or free play.
However, the RC51 uses a hydraulic clutch linkage and automatically compensates for wear and has no adjustment.
If your lever travel is normal and you are having problems with initial point where the clutch starts to engage, you may deeper problems.
Possibly the friction plates are worn to the replacement point, or possibly other problems in the system.
I suggest you have it checked.