Stock AFR is 14.7 and it is considered lean by some but it helps the bike meet EPA reg's and it also makes the bike get fairly good mpg. Some tuners want to drop the AFR down into the 12's which helps the bike run a little cooler but it will also drop the mpg's into the low 30's or high 20's. I set my AFR around 14 which richens the bike and will keep the mpg's around 40. Try keeping the AFR between 13.5 and 14 and everything should be OK. JMO
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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.