Picked this bike up a few months back. Per Kevins Mods I decided to remove snorkel then rejet. After removing snorkel and pulling the carb bowl off, I discovered I already had a 60 / 160. Per Kevin's mods, if I'm just pulling the snorkel I should rejet (make richer) with a 55/155. What is stock in these '02 XR400, possibly the previous owner could have changed? Bike runs great, just curious if it's possible these bikes came standard with a 60 /160?