first of all you can't get an oversized stock flywheel, not entirely true but for 93 it is, are you sure you don't have a weight on it? what makes you think its oversized? you will need to be careful, if the ignition is not stock a stock flywheel will not work. there were bascially 2 sizes of flywheel, and 89ish and older and an 89 ish and newer. my 89 had the small one but others have said they had the bigger flywheel.
you bike might be easier to ride with the large flywheel