Main jet is showing to be a 98. Pilot is a 38. As far as I can tell those are the stock items. Which is weird because most of the phillips fasteners on the carbs have been replaced with hex bolts - someone has clearly messed with these before. And the bike came equipped with an K&N style air filter and an aftermarket exhaust...
I don't think the stock jetting will do. Off to read the jetting thread...
https://www.ninjette.org/forums/showthread.php?t=10208