Ok i was looking thru here but didn't really see my specific problem on here so wanted to make sure. I got my bike started other day ran like a champ on 100 mile ride. Problem now is bike starts fine and if its in neutral can turn throttle and it runs fine. But once i get it on the road and in first it goes but it feels like its sputtering as soon i i give it throttle. It makies a rapid popping sounds from exhaust and takes full throttle to get it up to speed. I changed spark plugs and made sure airbox was on tight and ran seafoam thru it but still doing same thing. Any help would be appreciated

 

have you checked the fuel filter??