Mady,
Sticking with the quoted directions of rotation.
1/ On most (not all) helicopters there is an offset in the vertical fin which is trying to turn you to the left as well. This effect will vary with airspeed.
2/ Torque between the mast and the fuselage due to "friction" - which as actually more than friction, it is the energy required to drive the accessories, friction in the powertrain, the TR etc. etc. This will vary with Rotor RPM.
Unless of course your flying MG's perpetual motion helicopter which evidently has NO torque reaction.
Ref your most recent post - would you care to refine the question.