I'm getting an average of about 37 MPG during my break-in period (only have about 500 miles right now on the bike. Weather's been cold, low 40's/high 30's for the couple hundred miles I've ridden. This about normal? Using 93 octane. Pulled a rear cylinder plug yesterday and the color looked good. Other bikes I've owned seemed to get good gas mileage right from the start but I haven't broken one in in this cold a temperature. One mechanic once told me that you can loose up to 5 mpg in colder weather. I find that a little hard to believe. If this kind of milage continues would putting it on a dyno and tweeking the mapping help. I bought this 2008 used with only 330 miles on it and with straight pipes(no baffles I could see) on it. I had the dealer put the stock pipes back on and I asked him if they had to adjust the mapping. Of course he said no, but I suppose there is a possibility that the prior owner adjusted the mapping when he had the straight pipes put on. Comments please??