My motorcycle didn´t get much use this past winter and summer (probably 6 times out in 9 months.) Before that I was taking it out every week or two and had it tuned up with regular maintenance. When I pulled it back out it was sputtering badly and would die on me unless I had it full throttle. Figured the gas was bad and changed it. It is still doing the same thing for the first 20 miles so far. Any chance this still needs the gas to run through, or could it be bad carbs? Any other ideas? I don´t know too much about bikes (other than I love to ride and am anxious to get out there often again)! Thanks for any help.