Lou, I have an 87 that I tried to get running right. Started hard, ran like crap until warmed up, then ran like crap. Tried everything..then finally tore the carbs apart.. here is the link to that thread. There are some additional diaphragms on the side of the carbs.. Mine are shot.
http://www.venturerider.org/forum/showthread.php?t=76730
Hope that isn't your problem.
Bill