Kawasaki FR651V LIBERTY ZWhat is the make, model and type number off of the engine ID plate or sticker? Scag did not build the engine.
I have run them overfilled before and not had an issue, but some engines will smoke or purge oil out of the breather and into the air cleaner housing.
If the engine has an oil filter, pull it off a drain it out and reinstall. After that, run it, shut down and recheck the oil level on the stick.