The significant difference is that the motor attached to the 1100 ZXI is physically larger than that of the 900 ZXI. Watercraft 2 Person 323 PSN . Trying to fit any additional people on the unit is considered a hazard. 1996 Kawasaki ZXI 1100 LOOKING FOR A FUN ON the WATER TOY!! THIS IS IT AND WE CAN MAKE IT YOURS the 1996 Kawasaki 1100 ZXI has the same physical design as another Kawasaki model the 900 ZXI unit. the jet-ski itself is designed to fit one-to-two people comfortably...