What is the name of that movie?

It is a futuristic post-apocalyptic movie made in the late 70's early 80's. I believe they mention "New York" in the title, but it isn't a Kurt Russell movie. The movie is a combination hodge-podge of charactors similiar to Alice in Wonderland/Mad Max/Logan's Run. The main object was to escape from the dangerous place where they were and travel to a "safe zone" while avoiding mad scientists, roaming marauders and many other dangers along the way. It was kind of a "campy" style movie, not a direct comedy, thiller, serious or scary type of movie. I do not remember any actors or names of characters in the movie. I do remember a talking motorcycle (similiar to KIT on Night Rider), a male clown style charactor that could clone (duplicate-multiply) himself at will, a mad scientist capturing some of the main characters and holding them in hanging plastic cantainers (bags) while gassing/torturing/experimenting on them before they escaped by burning the containment bags they were trapped in. Does any of this sound familiar to anyone? What's the name of this movie?