stuttering fzs 600

[red98]

Is your airbox structurally intact and forming a good seal, or are your carb rubbers perished anywhere?

Is your CDI unit fine? Not the same bike, I know, but I had an old FZR600 that used to miss sporadically around 6000rpm, usually just when I was overtaking.  Tried everything to resolve that PITA before I borrowed another CDI

hi kebab ........forgot to put on list :\ ........first thing i replaced.....carb to head rubbers,very badly cracked but not all the way through,new ones on now ,air box as good as new

as for the cdi.......and iam not quite sure on this,but did`nt the ecu take the place of the cdi ?......will check dr haynes later on tonight...thats the sort of thing i`ll be checking if the carb swap dos`nt sort the problem .........thanks for your input