Ok, I shaved my ears about a year ago. The bike ran fine for a while then I got deployed. Now I'm having issues with the carbs. In low gears I'm fine. When I'm at about 40 mph in fifth gear, at low to low/mid throttle, I get a loss of power and a lot of backfiring. I can just crank the throttle and it goes away. I have two size larger jets in both front and rear. I'm curious if it's the wind blowing into the rear carb making it go lean. Could the carbs being out of synch do this?