Did a world class bike drop in the garage and bent the front brake lever badly(bike fell on the right side).Replaced the brake lever with no other damage noted. Now the brake lever has good resistance for about 5 seconds ,then the lever will eventually come all the way back to the throttle in about 20 seconds with steady pressure on the brake lever with eventually no brake pressure at all on the pads. Front wheel turns freely with front brake lever pulled all the way in. Bled the brakes the old fashioned way and with a siphon,replaced master cylinder kit, held the calipers over the master cylinder and still have the same problem. Tried pretty much everything I have seen on other brake problems here with no results. No fluid leaks found anywhere. Any ideas? Other than dron't drop the anymore.