Ok guys/Gals heres the issue, just aquired a 97 FZR600r with low mile but has not run in 6 years for about 300 bucks, completely stock except for the v&h exhaust.(Its going to need new bodywork). I got the bike home and it would fire up and run but when the bike was put into first gear and the clutch was let out the bike would stumble from about 2000 rpm to about 4500 rpm like it wants to die out, then she takes off like a bat out of hell. if you slowe down the bike wants to stumble out. The following day i went to start the bike but it wouldnt start, just backfire, so i pulled the carbs off and looked at all the diaphragms, carb 2 had a rather large hole in it, ordered a new for about 175.00 put that in and she fires right up. I then figure that since its sat for about 6 year that it could use a good carb cleaning. so after cleaning out the carbs and everything I reset the air idle screws to where they were when i got the bike 4.5 turns out (factory is 3, I cant figure that one out) put the carbs back in and it fires up but still has the same symptoms of bogging/stumbling up till 4500 rpm or so, ive checked all the jets (they are stock)and ive checked the float hights, they are all the same (but i dont know what stock hight is). I just cant for the life of me figure out what the hell is wrong. Does anybody have any ideas where i should start looking or how to fix this issue? Keep in mind that the carbs are good and clean and that the bike idles just fine. and rev's just fine in neutral and when in gear. Thanks for the help.