Didn't ride for about a week. Went to start it wouldn't start (this was about a week ago.) It will turn over but wouldn't even kick. Had to go out of town come back Monday, try to start it same thing. I'm getting spark and the plug is good, I'm getting air (took the filter off, everything looks good) So I'm pretty sure its a fuel prob. Any ideas? Tank is filled, valve is on, all switches on. TIA