I've always ridden older bike so I am not used to all the electronics and computers. I purchased a 2011 Tri glide in November. I have only been getting between 20 and 25 miles to the gallon. What should I look at to figure what might be dragging it down? I suspect something in the computer but not sure. It also seems a little sluggish to me starting off in 1st gear unless I twist the throttle more than usual. I bought the extended warranty so I'm trying to get in touch with the service manager. Just wanted some input.