My 06' WR has the Yamaha AIS kit installed. I recently had some trouble with the carb that I thought were symptoms similar to a plugged pilot jet. Bike wouldn't idle and needed half throttle to start etc.etc. but ran fine otherwise. So I just went out to pull the carb and noticed that the rubber plug was missing from where the old AIS system's air induction line "used" to go into the right rear of the cylinder. This is supposed to be plugged, correct? Also, could that lead to some of the symptoms that I stated above? I found it strange that I would have a plugged pilot jet with only 114 miles on the bike w/ a good oiled filter. Any thoughts? Thanks!