If i were you i'd just look at em. One drain screw to drain the gas from the bowl, then remove 4 screws. A bit of a ****** to get your hands in the cramped area but thats all there is too it. Then just unscrew the jet and look at the number. I still don't understand how they could put 98's in there unless the redisigned the airbox to intake less air. Otherwise i would think it would be wayyyyy too lean.
By the way, you should definatly order a set of those allen head carb screws from Brent ASAP. Believe me, you want those to be available to install the first time the stock screws are removed.