I have a 2002 ST1100 with 64,356 miles on it. The best I ever got was 47 MPG U.S. Regular gas as it is not a high compressionengine, so don't use premium as it is a waste of money. 43 is what I usually get. But lately I have been getting 39. Now I havenoticed that when I am doing about 75 mph and then twist the throttle wideopen, it doesn't take off like it used to, it feels like it is either notgetting enough air, or not feeding the fuel through as fast as it shouldbe. It is only a guess, because otherthan that, it runs fine. I have onlychanged oil and spark plugs on it, so I assume I have to do a little more toget it back up to snuff. Any suggestionson getting it back to where it was?