If its when you just start it, I wouldnt worry too much it takes a few revs from the throttle to get her moving in the morning or in cold weather, once she gets going do you have that hesitation? I know when its been sitting over night or after a long day of work I start her up and have to give her some throttle a few times before she gets going! Sometimes she stalls but thats if you give it too much gas to quick or not enough, like i said once she warms up she gets to moving!