My bored-out ZX9R missfiers through out the rmp range (I think) and its makes getting to max rpm impossible in every gear but first. Even in first gear the revs are not smooth from 9-12000rpm and it jerks the bike. I believe I hear missfireing. The plugs look good and the carbs. look clean. The bike did not hav this problem 2 monthns ago but it had been sitting for 7 weeks untill I started riding it again a couple of days ago.If anyone has any suggestions as to what the problem could be please give me your sugestion.