its an 1984 honda cm450e. it has VB22 carbs (CV) I'm having\nhesitation/stuttering at about 1/4 to 1/2 throttle. the carbs have\nbeen professionally cleaned and synced. the slides move easily\nin the bore. once past this "stuttering" it runs fine. i just had\nthe carbs apart again to doublecheck and couldn't find any dirt in the\njets. these aren't the original carbs for the bike but every jet\nhas been properly sized as per the service manual. what am i\nmissing?? thanks.