I agree that 43 Nm is high (the Ninja 500, which also uses a 17 mm drain plug, requires 30 Nm), but that's the value that Shinysideup says he used.
To get the actual correct torque value, I was going to try to use my torque wrench to loosen the plug, although I don't know if that would produce a correct measurement. I'm not going to do that until I have the right oil (which I had to special order, since nobody seems to carry that).
The correct way to get that value is to ask the manufacturer. I was hoping that somebody over there would read this thread (which the have) and then give the correct torque values (which they have not... yet).
I have no idea what torque to use on the oil fill plug. I set my wrench to the lowest setting (13 Nm) and that was still too high.