I'm assuming you've checked the rear shock preload adjustment? If they look the same, I'd adjust them to the lowest setting and check the right lean again, if the problem is remedied, gradually adjust them up to where they should be for your bikes load (RTFM).
Both front forks are aligned properly in the clamps?
Leaking fork seal?
What's the dive like when braking? If it's extreme, maybe you have a bad spring in there.
Wheel alignment front and rear?
Everything balanced?
Wheel bearing?
Does it shudder at all?
If you ride down a smooth road in a straight line and take your hands off the bars, does it lean to one side or start to veer off in one direction?
With your hands off the bars and at a good speed, say 50MPH, slap the end of the bars. What happens?
(don't crash)